Hifonics BXI2608D repair Part 2 - Output and bench test

[@joshhanson6777]

Keep the amplifier repair vids coming! There helping me tremendously, there's no one on KZbin explaining the process near as good as you do! Great work, keep them coming!

[@haze541bsn]

Josh Hanson I must agree I'm fixing another app myself and I must say nobody does vids like this truly amazing

[@joshhanson6777]

I just got my hifonics brutus 2400 brz and my hifonics brutus 2500 brx going again because of this video. Your step by step instructions are by far the best. I would pay for your videos, NO JOKING! thank you so much.

[@barevids]

Fantastic dude! Love to hear that!

[@Bobbrians]

This is brilliant, your teachings are excellent. I wish you the very best in your future endeavors.

[@joshhanson6777]

Oh yeah I would like to see you do a driver board repair on that particular board also, because I have a couple of those to do and I would love to learn the proper way because you seem to be an amplifier wizard. You have come a long way very fast!

[@jasondilliner3862]

I love the amp repair videos I have always wanted to learn this keep up the good work on the videos

[@DavidSmith-dm8ew]

I went to the local recycling place yesterday and there was a planet audio TT1250D laying on the pile so I grabbed it and took it home. I took off the back and there didn't look like anything wrong, no burned smell or parts so I tried it on my power supply set to 2 amps and it turned on but there was no output...I had watched one of your other video's about how the inductor can sometimes vibrate and come loose and sure enough that's what it was...I tried your method of taking one wind off and re soldering it and it now works fine...Fuckin eh man I'm so glad I watch your vids :D CHEERS!!!

[@barevids]

Thats totally awesome! Nice one dude!

[@63mrl]

Thank you for your generous transfer of knowledge.

[@LiLthirtSty]

Once again great vid can't wait for new camera setup so we can see close ups of the oscilloscope and settings which is very hard to read on a cellular phone lol. But thanks for showing us the tips and tricks others kept to them self's hats off

[@paulhicks9399]

I’ve heard good things about those Hifonics amps. Apparently they chuck out a lot of power, but go up in smoke quite easily.

[@djhaloeight]

probably the most sorted out hifonics amp on the planet now! they always have bad build quality from the factory. you’ve straightened that all out now on this lucky amp.

[@arthureschner9319]

Great video. Very thorough & well explained. Thanks for sharing your knowledge. What component tester are you using? Do you have a link to purchase it?

[@bobbygordenakaredneckbilly3856]

I have a HiFonics BEX2150.1D that according to him, my son reversed positive and negative power. Upon looking at all the components, ONLY the 4 - 2200uF 100V 105 degree C capacitors on the power side show signs of damage. Is there a way for me to test the unit without a scope and only a multi meter? Thanks for these videos.

[@spuds7677]

Great videos. I like to watch the amp repairs. Anyone know what sign wave generator that he used in this video?

[@mitchellroberts7954]

Is there a video on the bank of D cells in the back LOL I'd like to see that set up

[@INCC74656I]

i use a battery powered scope to prevent ground issues. too many times ive been working on something and accidentally hit a probe onto a power rail

[@chriswillis6294]

Thanks for the videos.. Your are vary informative ...

[@waynebaynum5859]

i have a hi phonics am0 what protection on well what he calls to have it fixed

[@erickariuki4957]

@barevids, the output drivers AG QD and DK QZ, what’s the right type to replace with?

[@jeremyloftis3181]

Thank buddy for answering my question on the ground lead on the oscilloscope. I know many would like to know that. I currently only repair oldschool Soundstream amps, due to the fact that I bought out one of the original employees who worked for them back in the 90’s. He had a repair business afterwards and since stopped repairing back in 2001. I offered him some cash for all of his components. Basically I have plenty of new old stock components. Add me on Facebook and you can check out my setup. Jeremy Scott Loftis. Thanks again for the great work getting this info out in a well orchestrated and edited affair. Cheers!

[@jessmad3824]

Have you ever done a Boston acoustics power test. Please let me know

[@jeremyloftis3181]

One other thing... I to have been getting some bad new parts that have read a capacitor in my tester. I have the same tester you have as well. What brand of transistor was that? Maybe it’s bad parts from the same manufacturer.

[@maamasaafi3076]

Pls make a video of what is the difference between the class amps eg class d and pls show us how to identify the power section from output

[@alanlv10]

I have the same amp. It just works while it is on slave mode. Do you know what could be the failure? Thanks and great videos!!!!!!

[@INCC74656I]

do you know which is high and which is low just by powering it and measuring? if you were to get an amp with no fets in it and you did not know the layout. would you just power it like you have here and measure to know if the rectifiers are in the correct locations?

[@andi1274]

very nice, please more

[@ManofCulture]

Can you give me a RMS power calculation formula, it's a bit confusing. Does it applies to class AB too?

[@robizvermkd]

Does this amplifier has regulated power supply or unregulated?

[@mikerenza2253]

Whats a cheap decent scope to use for reparing amps and also would i be able to set gains with it?

[@andymouse]

do you ever play music as a test or check for noise?...……..or just peak power?

[@BijuKumar-kj7qr]

Very nice video

[@qwertyxf]

do the bxi's do rated i can find the bxi4000d on amp performance or somewhere and it did rated(around 2000rms 1 ohm 13.8v), also found the bxi 6000d and it did rated too (around 3000 rms 1 ohm 13.8v) the bxi8000d which im looking at is supposed to do 4000rms at 1 ohm but it is not on the site so i cannot check :( safe to assume it does seeing the lower versions do their rated too? thanks in advance hope to see quick answer cause i am buying an amp around next week! :)

[@asdb0red278]

i'll ask a question and hope you can help me.. i have a renegade ren1800 stereo amp, and i connected (bridged) soundstream t4 12" sub at 2ohms/series if i use the low pass filter - the volume/output is unusually low, and when it's on full/hpf it's perfectly normal. what's the deal? i tried with several subs/speaker, still the same

[@keraspice4310]

whats the name of the board the ics are on. i need 1 of those

[@joshhanson6777]

Question! I want to repair my driverboards but the ic's have the part #'s scraped off. Take that hifonics amp in this video for example, what ic's would you use to replace the ones on that amps driver board? And is there a common ic that can be used on most of the driver boards of that style? For the output section of course. Thank you for your help witch is desperately needed on this!

[@barevids]

These are most certainly IRS21844s.

[@joshhanson6777]

barevids thank you! From North Carolina in the states.

[@drewcifer9755]

Output driver commonly fail in these hifonics amps

[@user-vq4ed6lh5t]

Thank you

[@arturocontreras9265]

I have the same problem how can I get it fix

[@arturocontreras9265]

My amp turns on but I wont get no sound

[@matk22]

Hi sam.... Sooke a good few time on bb... Do you do bench tests to find out output. Also is there any upgrading a kenwood kac-9104d?

[@barevids]

mat k I do bench tests, there might be some upgrades we can do but they rarely see any gains over about 500wrms.

[@matk22]

+barevids they are 900 at 2/1 ohm.

[@seanarmour5116]

I notice you say low side and high side a lot... Is there any way to identify the high and low side without probing it, and visually seeing high and low voltage?

[@barevids]

not really, you can do with a multimeter, the high side has positive rail on leg 2, and the low side has negative rail on 1 and 3. The low side starts the switching process off and the high side drives in relation to the output of the low side mosfet drain.

[@edbeltran2454]

where can i buy some parts to repair an amplifier

[@barevids]

The internet

[@plindsey4294]

I have an hifonics gladiator glx 1800.1d and I've opened it and nothing at all looks burned if I hook it up it goes rt into protect mode so I do this again with the back off and listen for anything to happen nothing now it will stay on and hold on at 6 v but rt to protect with 12v there's a big transistor name brand golden that trys to click on but as soon as it goes to12v it's rt to protect please I need this amp to work

[@plindsey4294]

Anyone please help!!!!

[@ktraughb]

@barevids what are those Duracell batteries in your power supply?

[@barevids]

ktraughb Maxwell supercapacitors with a Duracell wrap. 3000F each cell.

[@ktraughb]

barevids that makes more sense. 😂

[@joshhanson6777]

PLEASE HELP ME!!!! I have another question. I just started buttoning up a repair on a optidrive 7001.d. Its ready to go ,everything is new in the amp but one last thing. Vibration caused one of the toriods wires to break, causing the failure. And it broke towards the middle of its wind. Can I solder the two pieces of wire together and wind it back up? Do I have to get new wire? Can I buy a new one, if so where? Its in the output section. I have parts amplifiers but none of them are that big, mostly hifonics brutus 2400 sized amps. The toroids on the hifonics are close in size and value but not exactly. What would you do in this situation? P.S. your help has got me through a lot of amplifiers I thought I would never have fixed! Now I need your help more than ever because I'm going to put this amp in my personal vehicle!

[@samvennard6380]

unwind the original one and carefully count the number of winds. You need to get it exactly right. Then just order new copper wire and re-wind it. Try and get the same thickness.

[@joshhanson6777]

Sam Vennard thankyou sam.

[@barevids]

haha i replied on the wrong account. But yeah no worries!

[@joshhanson6777]

Sam Vennard ok, its three pieces of wire soldered together on each end that make the wind. I guess best thing to do is unsolder the broke wire from the others, find one of the same size and replace and rewind. Thanks for your help. Thats what I'll do. I just didn't know if I could solder the break or not. Thanks again

[@barevids]

yeah dont solder the break it wont be reliable. Or, you can take off all the wire, straighten it out, and measure the total length of it, and replace with the same length of wire.

[@AIexanderHartdegen]

WEWwww niiiice

[@yershaye6249]

Oh yeah pt3

[@alandoherty8279]

1400 watts for a car amp, madness.. Interesting vid tho..

[@troyparris8595]

Hi, I enjoy your videos a lot.... Very informative. However you need to ZOOM in on what you're doing. Your hands get in the way and I can't make out the points that you are testing. Thanks again!

[@barevids]

I absolultely agree! I do mention that im sorry for the camera angles, and this will be made far better when i sort the workshop out with all sorts of different angles and whatnot :)

[@tonytrevd4881]

@barevids do you have an email address I can write you at or phone number also have Hifonics amp K I would like repaired?

[@barevids]

Are you based in the UK dude?

[@tonytrevd4881]

@@barevids ok sorry no I'm in usa

[@joshhanson6777]

Keep the amplifier repair vids coming! There helping me tremendously, there's no one on KZbin explaining the process near as good as you do! Great work, keep them coming!