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or just slap 40 NE5532 per channel onto a board directly and use it straight as an amplifier. for less than a single sparko its only 20w tho and gets pretty toasty but performs good enough for me ( i know wrong scaling and horrible measurement hardware :/)

just two 10mF caps between V+ V- to gnd and two resistors for balancing so i can use a virtual ground and not needing a dual rail supply

i wanted to try it myself. my test: a simple gain=1 buffer like in 99% of dac and amps supplied by a normal 12v wall wart psu with some caps. i recorded 4 tracks on my audio interface to have the same clock on adc and dac. test music was a 27mb FLAC played trough foobar2000. ive put a NE5532...

this class-d amp has 4 outputs, two for each channel, the amplified signal and the amplified signal but inverted 180° in addition... both outputs are floating at around half the supply voltage! but your speakers only see the difference not the absolute, so its fine. but dont touch one wire to...

the chip used is capable of driving 2 ohm loads but the output filters are not made for that, but with PFFB it should correct for that. its most likely gonna work no problem. just never connect the negative terminals together like some subwoofer high-level input boards do.

im really curious to see whats hiding below that heat sink. either they came up with a discrete power amp or its some off the shelf chip like the LM3886 but smaller or just a bunch of good opamps in parallel to drive low impedances

Horrible, powerful but horrible. I heard from several people i know that are into hifi (subjective hifi...) that those t.amps are the real deal. one even claiming his t.amp sound better than his mcintosh. but on the other hand one claimed that this radio antenna looking cable made a world of...

im running some bose qc15 (actually the third now) for 12 years as my PC headset. it doesnt measure well i believe (couldnt find any measurements on it as its ancient). its not even wireless. but then why? ive tried many in the past, in ear, over ear from all different brands, cheap...

Hello i repair hifi stuff for a while now and came across a phonostage from Trigon, model Vanguard 1 with a broken PSU. after i got it back working (the power brick "volcano" was dead) i wanted to measure its distortion and noise. I am using a Focusrite 4i4 3rd gen and REW software. When a do...

its 100$ more expensive than the PA5 II and will fail at some point, it makes no sense.

ive posted a guide on how to order pre-assembled pcbs on jlcpcb on page 2 just open the other design in the editor at the exporting step https://www.audiosciencereview.com/forum/index.php?threads/topping-pa5-fix-d01-module-replacement-for-everyone.44219/page-2#post-1586850

modules arrived today, assembled and tested each one, they all good. ready to fix some dead pa5's again

right now i only have two modules left, but a new batch is in the making. will let you know when they arrive.

if you increase the SPL enough you can feel any inaudible frequency, just work on a ultrasonic cleaner for a while and your ears feel fatigued and have pressure on them, even tho you just hear the slight buzz from cavitation not the actual hundreds of watts of ultrasound.

2 screws on the bottom, 2 on the back. get some pliers and wrap the tip in cloth or plastic and pull out the volume knob (its just pressed onto a shaft, dont worry breaking it. dont bend, just pull) then remove a nut behind it. push the volume shaft and it should pop out on the back. pull 3...

Remove the module from the PA5 board then heat it using hot air to about 330.. 370°C (start low, if it doesnt work, increase), then the compound becomes brittle. you can pry it away piece by piece with a toothpick or tweezers but beware, components make come off aswell and the housing of the...

sure, ive sent you a pm

im asking 45 eur for one plus shipping. will let you know when they are ready, ive put some in production.

i decided to make another batch of modules to have on hand in case someone needs one in the future. ive sent you a message.

did you follow my guide ? https://www.audiosciencereview.com/forum/index.php?threads/topping-pa5-fix-d01-module-replacement-for-everyone.44219/post-1586850 i dont have any modules left and im not sure if i order some more as the number of people asking for one went down quite a bit, i would...