I think before rubbishing other kit designers work, one would need to look at the original Troels Gravesen " 8008 corner " design on his web site. The one Danny is looking at is a redesigned cabinet built by the customer, that fails badly in more ways than one. This unit should not be compared at all with Troels original design, when in fact may have worked well for what it was designed for. Besides Danny's vid pointing out the flaws and corrections ( I agree with ) the other option ( probably most obvious ) I would point out to the customer, rebuild the cabinet to the original specifications and keep the rest as is, then make a decision !
@BruceCross4 ай бұрын
The customer who lied and claimed they built it properly? They wasted everyone's time.
@hjnorlander71244 ай бұрын
From TG's page about this build. "A third options may be to build the cabinet without braces and from e.g. 15 mm Baltic birch or similar and make a "thin-walled" cabinet, e.g. Spendor/Harbeth style. What you get is a resonant box and it has its followers. Not my cup of tea to have the cabinet adding to the overall sound. If you do so, please report back and tell me what you hear. There are all sorts of unsubstantiated claims in hifi and to my knowledge nobody has ever build the same pair of speakers in two versions, resonant and non-resonant, and made comparison."
@dannyrichie97434 ай бұрын
My measurements matched his very closely. Both show a lower output from the tweeter than the woofer. So it wasn't just about the box issues. The imbalance is also not at all ideal for near corner placement. It was also part of his design to center the drivers down the middle of the box with a wide baffle.
@howardskeivys41844 ай бұрын
👍
@CollectingRetro4 ай бұрын
Yup, great speaker if you build it properly and use as designed. The kit also comes with resistors to adjust the tweeter level. A friend that had Devore Fidelity O/93 thoroughly enjoyed them in my system. It would be interesting to hear Danny's crossover, but they don't sound deficient in any way as they are.
@stephenyoud61253 ай бұрын
Danny - for bracing cut from 3/4" MDF and 45 deg end cuts. I would look at gluing from sides to back and front but also glue the braces themselves together so the side of the brace going forwds is glued to the side of the brace going to the back panel. that will add a bit more rigidity to the joints to the side panel. I'd also look at using polyurethane construction adhesive as that will also have a bit of inherent damping on account of its chemistry.
@The-Spotlight-Kid3 ай бұрын
In the early 70's, I remember more than one of my dad's hi-fi mags advertising a concrete cab'd speaker. No idea what they would have sounded like, not woody but maybe concretey, the idea never got popular, tho I'd have liked to have heard my old Tannoy D.C.s placed in the wall between living room & the outside world as the cab' but for the neighbours, the large flat owning housing society where I then lived, would not allow my request to jigsaw out two 15" holes between living room & the bedroom come speaker rear-wave massive cab/bedroom. I should have just done it on that (non' load-bearing wall) ..& then covered it up well when I moved out.
@aether-elephant3 ай бұрын
@@The-Spotlight-Kid (only for rock mixes)
@yvesboutin56044 ай бұрын
Hi Danny! I totally agree with you that cabinet design, rigidity and placement are essential to a realistic musical enjoyment. I have seen so many good quality parts being put in a flimsy cabinet with sometimes no damping at all. Contrary to a musical instrument where the casing is to vibrate to amplify the sound wave, on a speaker, the cabinet must be inert to not add its own vibrations with the ones produced by the drivers. This is also one of the reason why modern cabinet design use a narrow baffle to avoid surface reflections. Thanks again for the education value of this video! Sometimes, things must be repeated again and again before it becomes common knowledge. BYE !
@AllboroLCD4 ай бұрын
I just spent $50 on 2 6.5" plastic basketed pyle DVC subs, yup, Pyle.... they sounded horrible at first! Then I built a mini vented cabinet for them and they just woke up! So impressed, Im planning to buy 2 more and build them into a butcher block coffee table in a "dual opposed" sealed setup and juice em with a 500 watt dayton plate amp. I think the results will be extremely positive : )
@robanderson61734 ай бұрын
Thanks for the explanation on the cabinet pitfalls. I wonder if laminating mdf from the outside would help. A new layer of baffle could get rid of that ridge on the baffle edge.
@blackdaan4 ай бұрын
yes that works.. i have made speakers of thick mdf. braced. and the inside has a layer of rubber bitumen. and foam.. i can hold my ear against it and hear near nothing.
@stephenyoud61253 ай бұрын
or just use a Router and cut the front beading off and then do a roundover. but Dannys crossover would then be disrupted
@darrenmarrable25302 ай бұрын
Hey, a huge huge shout-out for your channel. Absolutely superb. It really surprises me that high-end speakers at higher end prices actually con us laymen into believing that their product is superior to others due to... their name... their prestige and their marketing, to make us bel8eve that we are buying a greater product. When in some circumstances you are buying an inferior product with inferior components. Simply jaw dropping until s9me one with your knowledge and expertise opens our minds t9 these terr8ble behaviours. Thankyou. I can't wait to watch and learn more from your previous media and attempt to build a great speaker. Thankyou all thr way from Australia, Gold Coast. 👍
@kenthomas16134 ай бұрын
Just a thought. Some people would possibly love a speaker design with higher quality (slightly more expensive) drivers than the ones you always use. Something that’s from say Scan-Speak instead of drivers that you buy in bulk or from other loudspeaker manufacturers that have a tonne of drivers that they need to off-load. I personally would love to see a design based on Scan-Speak Discovery line of drivers with their new D3004/602200 tweeter. Sometimes customers want a more premium offering.
@mcgovernjimmy4 ай бұрын
Right now, I'm listening to one of Danny's drivers - M165NQ in an enclosure with the Dynaudio Esotar tweeter. The woofer in the enclosure was the perennial favorite, Scan-Speak 8545 woofer. The M165NQ woofer that Danny designed absolutely outclasses the 8545 in midrange clarity, and still plays well low. The 8545 may play lower, but it is outmatched in the clarity department. It's immediately discernible and I am not new to Scan-Speak drivers. In fact, I like Scan-Speak drivers. I have 2 other speakers with Scan-Speak drivers, one of them uses Scan-Speak Revelator drivers including the 8" Scan-Speak woofer with Revelator tweeter in a 2-way application. Perhaps I misunderstand your comment... but that M165NQ driver that Danny sells is exceptional and not just some "good for the money" driver. In fact, the NQ driver is so good that I would view it as a very significant $$$ bet to buy a 6.5" / 7" SS Revelator driver and think it's automatically going to be better than the GR M165NQ driver. The M165NQ only needs a single cap and inductor (2 parts) for the network... the natural response from the driver is already there, just by its basic design.
@dannyrichie97434 ай бұрын
Our drivers are already better than the Scan Speak drivers in many areas. They certainly sound better. There is also a reason we can sell them at a lower price point and it has little to do with cost to produce and more to do with less markup. Part of it is that we have no dealers or distributors in the mix doubling the cost to the consumer.
@kenthomas16134 ай бұрын
@@dannyrichie9743 OK. Just one more follow up question then. If you were to design a more expensive, more up market, more luxury loudspeaker for those that love your design skills like me and don’t mind spending more, what would you do?
@@kenthomas1613 I think he already has with the NX-Otica and NX-Treme. If those don't look exotic, I don't know what does. I suspect the real question is what you define as "more expensive, more up market, luxury"... and maybe you're thinking of a box speaker like a floor standing Wilson audio. That's the thing... spending more money doesn't always equate to "better". Some think his NX-Treme speaker is the best speaker on the planet... don't let the fact that it doesn't cost 5 figures fool you into thinking it's not already the best.
@kft5904 ай бұрын
If the speaker is built to Troels Gravesen's original specifications (drawings) the Speaker will sound wonderful if your measurements are wrong then and not built as planned then it won't be good just like a GR-Research kit not built to specifications.
@dannyrichie97434 ай бұрын
Actually, as shown in the video, my measurements matched his very closely.
@yngve66404 ай бұрын
I'm Norwegian, and that woofer looks like a SEAS build for the Danish Truels Gravesen kit speaker constructor. It's an SEAS Excel based woofer made at Gravesens wishes for higher efficiency. I believe he wanted a woofer for small watt tube amplifiers. Like the woofers in Audio Note speakers. Audio Note speakers for tube amps are build to stand in the corners of the room. So this probably was Gravesens aim with this kit ?
@dannyrichie97434 ай бұрын
I've heard the Audio Note speakers at a show with their gear. The speakers were in the corners of the room. In short, it did not work. The sound was flat (no depth) and sounded like there was a speaker in each corner.
@CollectingRetro4 ай бұрын
I can attest that these speakers work excellent with low power tube amps. I built them by the book and they turned out excellent. Far better than another kit using the same tweeter. Easy load for 3-4 watts of SET power in a small room. Using no braces seems like a HUGE mistake and they certainly don't sound dull in my system. The kit also comes with a few different resistors for the tweeter output to adjust to room/preferences.
@DeclanHarris-vu4ib4 ай бұрын
I have been a long-time follower and supporter of your work, Danny. I love your kits, and I appreciate your generosity and knowledge-sharing. However, I must express my disappointment with this video. I feel that you could have used a different speaker to demonstrate your points about inferior cabinet work and resonances. While it's true that the response is not perfect and the design work may not appeal to everyone, showcasing a customer's failed attempt at this particular kit to promote your own products seems incredibly unfair. For the record, I have built two Troels Gravesen kits, and I absolutely love them. Troels offers incredible support and is a really nice and humble person. Given the recent issues at Tekton, I would have expected that you, as part of this community, would understand that there is no tolerance for bullying and veiled defamatory behaviour. People can see through this stuff. I hope you will consider this feedback moving forward.
@timothylovett61194 ай бұрын
Exactly what I was thinking. Thanks for having to courage to speak up on this one. We love you Danny... but this one feels a bit off.....
@T-1616-ht1ls4 ай бұрын
I couldn't agree more with this. Please consider the affect these videos have on people's reputation (and livelihoods for that matter!) - even more so when Troels is such a decent human being. All this video does is reflect poorly on GR-Research.
@SkyeWilliams-jj8cg4 ай бұрын
AGREE!!! I wonder how Troels Gravesen would feel watching this video... especially knowing that a customer has clearly not followed the kit plans. How about we show support for other players in the community? This reeks of unfair slander... i honestly would of expected more from you, Danny.
@dannyrichie97434 ай бұрын
Guys, I did not mention the designer of this speaker. There was no slander. No mention of anyone... As usual, and even if it isn't popular, I am and will always be honest.
@DeclanHarris-vu4ib4 ай бұрын
@@dannyrichie9743 Not exactly the response I had hoped for. All the best, Danny.
@The-Spotlight-Kid3 ай бұрын
An excellent informed guide to bracing with aspects I was unaware of. Until I heard speakers without boxes, I never knew the amounts of box colouration I was always hearing, they were panel e/stats of 3 different designers, my fave being s/h imported 4 panel large e/stats by Accustat, full range each & driven from their dedicated valve energisers come power amps which sat on the low shelves backside, with their valve anodes wired directly onto the panel units stators, Gr8 sound but the sub 60'ish hertz bass drops out needing a sub I could never seamlessly blend in, so they're stashed in spare bedroom with some others, they made me think O.B. normal coned speakers may be my final ever ideal speakers with real bass, till then, I'd like to hear extremely well damped versions of Box speakers I deemed "too good to sell for what they fetch" like Celestion 2-way long ribbon hybrid boxes (Cel' 3000's) which cross over at 900'htz, a lot for a woofer / mid but they did sound Gr8 for their s/h priced sound but boxy bass that I now think are worth damping to the hilt, in the style hear explained, with minimal box-volume reduction. If I could get my Tannoy D.C.'s cones re edge- terminated, they would be my prime candidate for all this treatment, esp' with their thin wooden walled cabinets like they have. All panel ribbons or e/stats I've owned all disappoint me in the deeper bass, which somewhat destroys the sense of the size of venue a quartet or symphony orchestra or a band plays in, for just 1 shortfall of deeper or cab- resonance' from the deeper frq' extra' air-moving notes resonating cab walls. I heard that sound moves 4 or 5 times slower through helium, but can't think of a way to send the rear wave into a sealed cab of pure helium & regular long haired sheep's wool!!
@alexz12324 ай бұрын
I would love to see a video comparing identical drivers and crossover in 2-3 cabinets of differing quality levels. There is a lot of measurements of finished speakers online, not many that focus on specific variables.
@RedSinter4 ай бұрын
Well, the baffle edge reflection can be easily corrected adding an identical baffle face to remount the drivers then if handy he can round over the cabinets edge. And bracing is a no brainer.
@georgeswanson94834 ай бұрын
I'd been interested in this design, not everyone has the luxury of placing the speakers 3+ feet from the wall. It's a shame that there aren't more designs that give decent sound with close to wall placement.
@dannyrichie97434 ай бұрын
Well, this one is not at all one that you would want to place close to a wall or corner. We do have some designs with that in mind though. All of our LGK models are good in that regard. The Studio Monitor works well with close wall placement. The Bully can be used in those applications too as it has a completely adjustable bottom end.
@georgeswanson94834 ай бұрын
@@dannyrichie9743 Speaking of the Bully, I've been meaning to ask why The Bully has 95db or thereabouts efficiency on the passive MTM section whereas the standalone speaker with the same drivers seem to have a lower efficiency? Is that because the lows are rolled off for those drivers in The Bully? I'm asking because I'm interested in higher efficiency speakers for use with low powered tube amps and was interested in a TL design using those drivers.
@nathandaniels48234 ай бұрын
@dannyrichie9743 with speakers that have large woofers in it like this, would it be advantageous to design a cabinet that has less width at the mid and/or tweeter? Like a pyramid or a pear shape? I ask because my (limited) experience with speakers sporting offset tweeters is that their soundstage seems very sensitive to minor head movements.
@cbts00294 ай бұрын
a possibility is try a closed cabinet and use the wall as an enchancement for the low Frequencies, or use a cornerhorn.
@xxxYYZxxx4 ай бұрын
Klipsch Heresy is designed to go into the corner of a rectangular room, at least the original acoustic-suspension models.
@pcorf3 ай бұрын
7:10 I fixed up a pair of old speakers by using cheap drivers, Peerless woofer and Dayton tweeter and it sounded decent enough to me. So indeed you don't need expensive drivers.
@318ishonk4 ай бұрын
The risk I see in building kit speakers is mainly about their tonality which you cannot test before buying and which depends on your room and equipment. In this case I'd have braced the cabinet and simply applied suitable DSP filters on my Wiim streamer. If I bought a crossover kit from Danny I still wouldn't know if I liked that tonality. That DSP approach does of course not work if the crossover or drivers have some fundamental flaws.
@freeradical63904 ай бұрын
Great vid Danny! I like doing ladder bracing front to back, top and bottom of each driver. Rails and stiles.
@stephenyoud61254 ай бұрын
Outstanding job again and thanks for the tips and explanations.
@twitchbook-14 ай бұрын
cheers , hope have some of you thought on the kick start proyect towards tuning!
@gralphirichmond29444 ай бұрын
It's a poorly build DIY cabinet. I would just build another cabinet and do it correctly (with bracing and no-res etc) rather than band aide the cabinet.
@@ywsx6489 I wonder why the designer's measurements were so much flatter?
@pandstar4 ай бұрын
@@craigenputtock Danny explains that at about the 5:15 mark of the video.
@jeanlephunk4 ай бұрын
@@craigenputtock10db graph vs 5db danny used to
@petertimp54164 ай бұрын
Thanks
@noamgellerdiy4 ай бұрын
Hmmm, seems like my comment got deleted. I'll try again Not all Troels Gravesen are equal- obviously. I have made 6 of his creation and regard him as very talented and a bliss for the DIY community.
@CollectingRetro4 ай бұрын
I find the 8008 Corner to be no exception. Sounds great if you follow the directions.
@rosswarren4364 ай бұрын
Never knew that (phase shift issues) about silver coated copper. Wow. Some companies make "jumper cables" to connect the terminals of bi-wire capable speakers for those who are not into biwiring and those cables are yep, silver coated copper. Maybe a small 4" length wouldn't do any harm, but why chance it? Good information.
@myturkishlife17774 ай бұрын
Would it help by placing hi density foam on the front baffle or even leather or suede? Really enjoy these videos... Kind regards from Turkey 👍
@dannyrichie97434 ай бұрын
A layer of felt can help in some frequency ranges.
@myturkishlife17774 ай бұрын
@@dannyrichie9743 would love to see a demonstration of this ... Of course when you have time... 👍
@howardskeivys41844 ай бұрын
I note that in many of your videos and tear downs, you frequently refer to phase issues being a real problem to coherent sound reproduction. Yet, Floyd Toole, in many of his videos and printed material, clearly and authoritatively states that regardless of how well a room is treated, there will always be reflections. These reflections will guarantee that phase issues will be inaudible. Only with top notch, closed back headphones, will/maybe phase issues could be detected. Your comments would be welcome.
@dannyrichie97434 ай бұрын
:-) How well the drivers are in phase and the effect of out of phase cancellations in the off axis responses are a big factor in what the room reflections will be.
@howardskeivys41844 ай бұрын
@@dannyrichie9743 at 20C sound travels at 343 meters per second. So if the listener sits 4 meters away from the speaker the direct sound will reach him in 0.011 seconds. The reflected sound will be fractionally delayed and have less amplitude. There will be multiple reflections, all with their own delay and amplitude which the human auditory system has evolved to process and interpret. Are you sincerely suggesting that the minuscule timing smere of phase issues are going to be detectable to the human ear through that pea soup of reflected and direct sound?
@dannyrichie97434 ай бұрын
@@howardskeivys4184 I like your question, by the way. Let's look at the one axis response first. When everything is in phase then the layering and positioning in the sound stage are more precise. Images and things in the sound stage have better depth between them. Instruments sound like real instruments and are not pulled apart from their highs to their lows. The off axis response also contributes to what we hear. For instance, if the drivers become very out of phase vertically or in the vertical plane, then the room reflections are uneven. You will have bright spots where the drivers are in phase and holes in the response where they are out of phase. So a floor and ceiling reflection doesn't match the on axis. So even if that reflection is delayed in time, you still hear it, and what you are hearing is a jumbled mess.
@howardskeivys41843 ай бұрын
@@dannyrichie9743 yeh but, the issue for the end user/consumer, is whose opinion does he take as gospel? Your’s? Amir’s from Audio Science? Jean’s from Audioholics? Floyd Toole? Ask 101 experts the same question, likely you’ll get 102 conflicting opinions. You can’t all be right. So I’ve come to rely on the most reliable measuring equipment available to me, my auditory system. A classic example. I’ve built a system comprising of 2 pairs of speakers, vertically stacked. Each pair of speakers driven by separate power amps, controlled by 1 preamp. Every opinion suggested it wouldn’t work. There would be problems with cone filtering, phase anomaly’s, tonal suck out, Etc. But it does work, with non of those issues being audible. Plus you get a 7db SPL increase at any given volume and a huge dynamic headroom. Less cone excursion for any given, so lower distortion. But I’ve not found any experts that support my experience.
@Kulumuli4 ай бұрын
I'm on the fence with Danny on my Epos ES 11s. I thought I had to replace them, BUT I got a used Copland CTA 405 tube amplifier to them (50w tube power). Now they sound amazing! These speakers have minimal crossovers. But maybe if I DO replace them, maybe go for a single driver speaker like Tannoy? I don't know.
@dannyrichie97434 ай бұрын
If it were me, I'd go for an X-LS Encore. None of those production speakers will come close to touching them for the money.
@amok2814 ай бұрын
Tannoy are not single unit speakers, they have the tweeter within the mid/bass unit concentrically.
@aether-elephant3 ай бұрын
great video.. thankyou!
@joeygonzo4 ай бұрын
Kits intrigue me but my ADS L810 sound so good
@EskWIRED4 ай бұрын
I had a pair of 710s back in the day. I enjoyed them greatly until my apartment was broken into and they were stolen.
@joeygonzo4 ай бұрын
@@EskWIRED damn! I just missed out on a good pair for $300.
@Bluesharp189617 күн бұрын
I loved the upper end on L810s when I sold them in the 70s and 80s, but could never get over their mid bass hump and lack of deep bass extension. I always wished for a woofer response more like a Large Advent to go with the ADS domes. The L880 was the ticket.
@rodrigoraynor4 ай бұрын
you can teache us to do better speakers, some content for who want to make theyr on speakers , like design and materials etc.thanks for share everything in here .
@vegaslimoguy23764 ай бұрын
Are u new to the channel??? He already has several videos covering that.
@Nihil1st13474 ай бұрын
How bad does a phase shift caused by silver plated copper wire work out? In what frequency the phase shift happens?
@dannyrichie97434 ай бұрын
It will take the sound of an acoustic guitar and shift the top end detail forward and away from the body of the guitar.
@paulb46614 ай бұрын
@@dannyrichie9743 Oh Dear! Imagine what goes on at the AgSnO2 tipped relay, next to an energized solenoid! Oh no... what about the "phase divergence" on all those tinned copper PCB traces??? Computers will never work!
@danielwoodard6804 ай бұрын
@@paulb4661I look forward to following your channel.
@toby99994 ай бұрын
@@paulb4661Computers are digital.
@RennieAsh4 ай бұрын
@@danielwoodard680no need, you only need to believe someone's words like you're already doing lol
@jasonme35574 ай бұрын
The cabinet is brutally ugly. I would keep the decent parts and start with a new cabinet.
@lastweekslightning3 ай бұрын
Have you done the Triangle Borea BR08? I have a pair and been in love with them for a couple years now, but would love to know what I could do to even improve them.
@dannyrichie97433 ай бұрын
We took a look at the Borea model. They needed help, but were too hard to work on and almost impossible to remove the drivers.
@rothgartheviking8584 ай бұрын
Great Video
@D1N024 ай бұрын
I'd build a new cabinet the right way and add a super tweeter.
@allankvist67414 ай бұрын
No reason for normal hearing. Plummeting above 15k is not degrading. Even undetectable for 90% of us. Try listen to a 15k sinusoidal tone. Extension above don't make the music sound better. You can probably hear a hi cut being flicked on or of, but 2 minutes later it sounds the same. Waste of money in my opinion, but your ears may be one of the few sets that will appreciate a supertweeter.
@eliseoquiroz83214 ай бұрын
When are the 8" releasing?
@anthonyjackson70974 ай бұрын
Troels Graveson definitely knows audio speakers. But, lets not be too hard on his designs. Especially when someone builds the kit incorrectly. John Krutke he extensively tested comercialy available drivers and found their weak points and posted for the DIY world to use . I believe a person considering buying a speaker kit should reserch the parts used before making the purchase. All the speakers drivers from reputable manufacturers post the T.S parameters. From those parameters it will atleast give you a clue to if the designer is using the driver within its capabilities.
@dannyrichie97434 ай бұрын
My measurements showing the output imbalance did match his....
@anthonyjackson70974 ай бұрын
@@dannyrichie9743 Sure, I understood that point.
@MrTeff9994 ай бұрын
Question about No Rez. I see it’s about 2 inches thick, which reduces the internal dimensions of the box. Do you compensate by building a larger box?
@dannyrichie97434 ай бұрын
No Rez is only 1" thick and it does not effect box volume. Any time you slow down the airflow it makes the box act as if it is larger. So the foam layer counteracts the air space taken up by the damper.
@donquixote46304 ай бұрын
So a very good designer makes a kit including very good drivers and specific cabinet instructions. Somebody buys the kit and builds the cabinet ignoring the design and doing a rookie job and the "issue" is the design ??? I will rather buy Troels Gravesen kit since I trust him more, and I agree with his excellent driver choice, and superlative cabinet design - but, I will choose to go active with Trinnov and fly over the "cuckoo nest" of the passive crossover that is simply non-sense nowadays.
@dannyrichie97433 ай бұрын
The complaint from the builder, and the guy that bought it finished, was that they sounded dull. This was due to the rolled off top end and tweeter level that was down several db below the woofer level. This was as designed and built according to plans. The cabinet resonances were a secondary issue. Even if built to specs the cabinet design is lightly braced and is still a problem.
@MrTeff9994 ай бұрын
Would mass loaded vinyl be a good box liner? I ask because I have a 25 foot roll of 1/4” that cost me a small fortune.
@dannyrichie97434 ай бұрын
Yes.
@EskWIRED4 ай бұрын
Can the dowels be attached just with wood glue? Do they have to be clamped when they're drying? Should they be attached with both glue and screws?
@dannyrichie97434 ай бұрын
Just gluing them in with wood glue works fine.
@nathanevans62774 ай бұрын
As the rear panel is only screwed on I'd take it off and glue 3/4" ply panels that connect front, back and sides together. These panels will require large cutouts for free air movement. I'd also add a baton or two across the top and bottom panels. This would involve more work but will be much more effective than dowels or thin strips. Keep up the great work Danny.
@dannyrichie97434 ай бұрын
@@nathanevans6277 That's a good idea.
@peterpida18404 ай бұрын
This here was perfect opportunity to show, how your No rez is working...
@naters834 ай бұрын
When measuring the tweeter without a network - it won't damage the tweeter sending low frequencies to it?
@johnsmith-i5j7i4 ай бұрын
I'm sure he sets a safe starting frequency, REW you can do that, it's easy to forget though Good idea to have a run through check list.. but yeah if you send FR you'll blow them
@dannyrichie97434 ай бұрын
Most tweeter easily handle the 1 watt test signal with no issues. The only ones we have to make an adjustment for are the true ribbons.
@mfr584 ай бұрын
It is probably a poor attempt at a live cabinet design, that is a legitimate way of tuning speaker sound. It's a different approach to the attempts at creating "dead" cabinets. Although I know you won't accept this method of speaker design there are successful examples of such, including the Spendor BC1.
@dannyrichie97434 ай бұрын
That is tuning is adding coloration.
@seanb33034 ай бұрын
That method is to lower the frequency of the box resonances… which can be an acceptable trade off for a budget build.
@seanb33034 ай бұрын
I wonder if mass loading the top panel would help
@dannyrichie97434 ай бұрын
@@seanb3303 Mass always helps.
@nathanevans62774 ай бұрын
@@seanb3303it's much better to try to push cabinet resonances as high in frequency as possible. This has several advantages. There will be fewer harmonics of the fundamental within the audio band. The amplitude of any cabinet flexing will be lower. Higher frequencies are easier to damp than low frequencies. Purposefully building a cabinet to resonate is not a good idea and is very likely to result in a very fatigueing sound.
@GavinHodgson4 ай бұрын
Wow
@tommyK72824 ай бұрын
I only use 12in high excursion woofers when I make my DIY speakers and I use 1in thick HDF for the whole cabinet. 6.5in midrange and a 2in soft dome tweeter.
@paulb46614 ай бұрын
Why 2" ? With a 6.5" doped mid you can easily cross to a 1" tweeter at around 2.5/3k without beaming and loss of top octave as is the case with a 2", technically speaking, upper midrange driver.
@ErnestLaRouche2 ай бұрын
But how does it sound? I never heard his feedback on how any speaker actually sounds.
@dannyrichie97432 ай бұрын
I am not a reviewer.
@ErnestLaRouche2 ай бұрын
@@dannyrichie9743 understood but you don't have to be a reviewer to give audio quality feedback of some kind based on changes
@dannyrichie97432 ай бұрын
@@ErnestLaRouche We typically don't get in a pair of speakers. Only one is sent in. So we can't listen to a pair of them. In most cases, with these upgrades, we are just fixing audible problems. These could be amplitude related, stored energy, break up or ringing, phase issues, etc. So in all cases there will be clear improvements or we wouldn't be offering an upgrade.
@ErnestLaRouche2 ай бұрын
@@dannyrichie9743 okay but how can you upgrade one speaker and not the other
@dannyrichie97432 ай бұрын
@@ErnestLaRouche The speakers are the same (same drivers, cabinet, etc.) So whatever we design for one speaker works for the other.
@word2RG3 ай бұрын
Be careful if you go hunting for Troels
@kennethabbott38564 ай бұрын
Danny: hope you guys are okay. I saw that there were tornadoes in your area last night.
@dannyrichie97434 ай бұрын
They were in my area, but 30 to 40 miles away. Thanks for thinking about me though.
@chuckmaddison29244 ай бұрын
I gave up building speakers. Building amplifier's is considerably easier.
@mojoneko83034 ай бұрын
I built a pair of your Criton 2TDX tower speakers with the superior crossovers a couple of years ago to pair with the Elekit 8600S 300B tube amplifier kit I built. I didn't use your MDF flat pack cabinets you sell for the kit but built the cabinets myself from 1 inch Red Oak and used 1 inch no rez on the inside back, sides and top of the cabinet. I also put 1/8 inch thick 3M asphalt sound deadening panels inside before installing the no rez. Is it possible to dampen a cabinet too much? They sound very good to me but these are the nicest speakers I've ever owned. I did a 3/4 inch round over on all the top and side outside edges and also the oval ports for the interior cabinet braces. Instead of using the subwoofer ports you sent I made my own out of 2 inch ABS black plastic pipe as I didn't want the plastic flange of the original ports showing. I cut out 2 inch port holes in the back of the cabinets 3/4 inch rounded them and cut a 1/4 inch deep recess on the insides to fit the abs port tube and made wooden brace's for the other end of the tubes inside the cabinet. I half rounded them as well. I sanded the outsides to 600 grit and finished them with 100% Tung oil. They look very nice and it took me almost two months to finish them. I am very happy with the way they turned out and how nice they sound. Thanks for making great speaker kits. 🙂
@dannyrichie97434 ай бұрын
The Criton 2TDX is not one of our products. That one is from Creative Sound Solutions. However, we did design an upgrade for the 1TDX model of theirs.
@mojoneko83034 ай бұрын
@@dannyrichie9743 oops my bad. I thought it was your kit but it's been a couple of years since I built them I should have checked. I did look at your speakers as well. I want to build a set of rear speakers as well . Thanks for the video! Do you think I over dampened them?
@dannyrichie97434 ай бұрын
@@mojoneko8303 Considering how lightly their cabinets are constructed, you could not have over damped them. If you build any of ours then you might want to put them up front and move the CSS models to the rear.
@mabehall76674 ай бұрын
@@dannyrichie9743Looked for a video and/or upgrade kit for the 1Tdx on your web site and didn’t find one?
@dannyrichie97434 ай бұрын
@@mabehall7667 We didn't make it publicly available.
@jungtarcph4 ай бұрын
Danny - your arrogance and way of criticizing and bullying without backing up your claims with facts is an unfortunate trend in 🇺🇸
@dannyrichie97434 ай бұрын
Don't mistake my experience and wisdom for arrogance. The truth is that I am fairly humble and I try to be as tactful as possible when giving any evaluation. I can also easily back up anything that I say.
@rikardekvall34334 ай бұрын
Didn’t you watch and listen to Danny? Feel sad for you if you get offended by the facts in this video.
@MrTeff9994 ай бұрын
The criticism was of the box, which was built by an unknown DIYer. There’s no need for anyone to be offended. I’ve watched quite a few hours of Danny’s videos and I’ve always found his critiques to be helpful and fair. He’s a teacher.
@MrTeff9994 ай бұрын
Question about No Rez. It’s about 2” thick, which reduces the internal dimensions of the box. Do you need to compensate by building a larger box?
@dannyrichie97434 ай бұрын
@@MrTeff999 No Rez is only 1" thick and it does not effect box volume. Any time you slow down the airflow it makes the box act as if it is larger. So the foam layer counteracts the air space taken up by the damper.
@frankd.b.92334 ай бұрын
A bass should be 8 inches max, why... too much space in the woofer makes it difficult to control the bending of the material from center to bass edge [ such as cardboard ] with a good mid and a tweeter, that's my opinion. a good speaker the size of the cabinet and insulation is certainly also important, when they are ready let me know lol;l