Voigt Pipe / Single driver speakers DEEP BASS (25Hz): is it real or not?!

[@middleearthltd]

Thank you for this video Since listening to your content I have started adjusting my audio listening and in particular lowering the db/spl and accordingly I am enjoying my music at lower levels I am continuing this process as I have seen the positive results for me and, again, increased enjoyment I am old and had years of exposure to unprotected loud noise….concerts, firearms, power equipment etc. I use hearing protection in situations that I would have never considered doing so before My hearing was degraded to around 12k - ish but has improved to around 15k - ish, again based on online testing I attribute this to being very careful about wearing hearing protection for any sound above 85 db for extended periods I am not saying my hearing is being healed I am saying that I have stopped with the sound insults to my hearing and I have gotten to, or closer to my true baseline which hopefully will get even better I believe that even at 12k I was getting decent enjoyment and not missing a lot especially low/mid ranges where most music resides But there has been noticeable and continuing improvement I am looking into any useful nutrition/supplements that might also help in this regard Thank you Janos

[@NickP333]

Wonderful comment. Janos has been a huge help to anyone who’s watched his videos and truly listened to and absorbed the information. Thankfully, I got on the RWA train about 3 yrs ago. The information Janos shares is truly priceless, and the people you meet in the comments and share ideas with are invaluable as well.

[@blimpass]

hello. what is the sensitivity on this speaker? is the speaker filled with any insulation or just an emty cabinet? thank for uploading your videos😃

[@realworldaudio]

Irt's about 92dB/Wm, but it feels a lot more as it's a 16 ohm speaker. The top has light filling, but in these speakers you adjust the fill to fine tune it to the room. In any given room it can be anything from a dense fill to no fill, in all cases fill only in the top part, above the drivers.

[@blimpass]

@@realworldaudio thanks, i am thinking on building theese, what do you think on lowther dx 3 driver vs Cube Audio Fc8 ? is the driver you use a 16 ohm driver? i just find 8 ohm when i look it up, cheers

[@realworldaudio]

@@blimpass Sadly CA stopped making these drivers. (Fc8 version 2). Yes, I think all current ones are 8R, and they would work in the VP cabinet. Just pick their least expensive model... which is sadly still very expensive. :( Other than the CA, I would recommend the Sonido SFR200A. Much cheaper, but a fantastic driver - 8R Alnico, 95dB/Wm, and with same paper as the coveted Telefunken drivers had. I have shared the dimensions of my Voigt pipe in one of my videos, it's in my Voigt pipe paylist. Us that cabinet for the Sonido or the CA. The Lowther has a terribly fast sound, but leaning very hard towards the high frequencies. CA has tons of bass in comparison, and the Sonido is between the two with the best tone.

[@Nihil1st1347]

Dear Janos! Although perhaps I won't build any isobaric subwoofer, you brought back to my memory, about what the physics teacher said regarding party loudspeaker arrangement for highest outputs. For some reason I never took that into concern in the past. I only built an open baffle sub and was not so happy with the way it sounded. Thank you!

[@Justwantahover]

I designed and built some speakers with an open FR driver with a boxed woofer. I noticed hearing undertones when playing the speakers and so I tried a 25 hz YT test and I could hear it! The tone, more than the tick. 😮😊

[@Tedsnap]

Thank you for this insight into bass. I have always felt my Quad ESL57 speaker deliver good bass. Nothing that will rattle furniture, but detailed bass and nuance to instruments and voices that naturally have many harmonics. I have never been able to integrate a subwoofer into my serious listening system. I appreciate subwoofers for film but not for music. I have never been able to put my finger on why some people like subwoofers and others do not until your explanation. I plan to built a set of Voigt pipes, thanks to you, to be able to enjoy more of the harmonics and energy in music, especially with a 6.7m long room for the bass frequencies to play in.

[@Nihil1st1347]

Also thank you for mentioning Arp Schnitger. I never heard of him before, although I love Organ music myself. Here are often mentioned Silbermann organs, because they seem to be wide spread in Saxonia.

[@virgiwood5139]

Janos, I am intrigued by your video. A number of years ago I purchased two sets of singled ended speakers, an 8" and a 15" pair, with plans to have my friend, a 5 decade long cabinet maker (kitchen, etc. ) to make cabinets for either the 8" or 15" speakers. I also purchased some gorgeous venered Russian Baltic plywood with gorgeous burled maple veneering. For weeks and weeks I looked at various cabinet configurations and being overwhelmed and simply burned out, gave up. Based on your video I would like to have my friend build Voigt cabinets. Most likely for the smaller speakers, unless the 15" can be incorporated in a cabinet that will not require a room the size of a football field. Can you provide plans for said cabinets, or at least direct me to somewhere where I can print plans to give to my cabinet maker friend? Your videos are very entertaining and I can sense, at least for me, can be addictive. Nice work!

[@korakotta1985]

Cube Nenuphar Mini deliver awesome bass. I don`t have a mic which records the bass on the Infected Mushrooms LP. I play only LPs, full analog setup with an Ikeda pickup. WOW factor 1000000

[@realworldaudio]

Infected Mushroom two thumbs up!! I second that. :) Cubes are absolutely phenomenal with electronica music. True immersive feeling with gallons of "presence", the music energized and alive.

[@EduardBroekman]

Along the same lines, I just blocked the port of my expanding ML-TQWT, turning it into a sealed enclosure: well, PRAT shot up and the bass now feels integrated musically. Reflecting on the difference, the BR port output had similarities to hooking up a tweeter in the wrong phase... With the closed box, the timing/swing directly grabs me: basslines also have the same timing tension, it laid the music's foundation as I experience with live music. The BR/ML setup has a great visceral experience but I can't shake the feeling that it's detached...

[@rmzidann]

Hi Janos, have you tried the Tang Band W8-1808 8" Neodymium Full Range Driver? Not as expensive as the Cube Audio drivers but still has a decent XMax of 5 mm. Cheers. 👍

[@anatolygrishin4234]

Dear Janos - could you comment on what makes the Cube Audio driver so good in reproducing low frequencies? Fs, Xmax, mms, or anything else?

[@Ivy13276]

Hello! Does anyone know how to measure how low speakers go in a room? Is there a phone app? I couldn't find anything?

[@cncspeakers1664]

I'm thinking of doing a 3 fold Voigt Pipe so I can get the size down for a larger bookshelf size speaker. Have you dont this before?

[@JONDFH]

I have swap jbl2206 for cube audio fc8 and the bass is better... 12 inches VS 8 , same port tuned at 42hz

[@robbase-f6x]

Cain and Cain was doing this 30 years ago

[@markbryant4641]

Has anyone here tried or heard a single driver in a transmission line box?

[@weatheranddarkness]

It's a power hungry alignment, so it's not as common, but there are a few out there. I understand you can get nice flat response. But you'd struggle to find a driver that could give you high output that can also run full range in a TL. Not to mention you'll be pushing the driver's excursion capabilities more than you will with any resonance reinforcing cabinetry, such as a Voigt pipe, or even bass reflex or sealed.

[@markbryant4641]

@@weatheranddarkness . Thanks! Very appreciated response.

[@EduardBroekman]

@@markbryant4641 I beg to differ on weatheranddarkness' comment: A negative tapered TL, being mass loaded by design, can very effectively control excursion and if designed properly will damp a cone much more than the expanding Voigt loading can - that should be obvious from the geometry alone.. but just sim it in hornresp or AJ horn using the research/recipes from Martin J King and see for yourself! A TL can approach the (critical) damping of sealed enclosure plus its group delay sits between a BR and a sealed enclosure. With stuffing the pipe you can trade low-end gain with damping. The downside is that its more complex to get the design right...

[@markbryant4641]

@@EduardBroekman. Thanks, Eduard.