About AMP7 and AMP15
Hi, I have connected up a circuit that creates 2x40Vdc, 1x10Vdc and 1x5Vdc out of 10-15Vdc. AND IT WORKS! And it can deliver a LOT of...
Hi all, back from vacation and trying to get some amp time:D (AMP7 that is) in need of help again! the toroids are wounded, just need to get...
I'm building an AMP7 for someone in the UK right now and shot some pics which I thought would be nice to post. It's got two 2x33V 500VA toroidal...
Many questions posted here are already answered in the 41HZ FAQ. Please read these docs first and then post your question if it is still not...
Wolfram emailed me these pictures. Apparently he got them from V-bro, rik and/or wadoka, see thread "Wanted: AMP 15 pics". If you object to me...
Design notes for AMP15. AMP15 was designed with a few different things in mind: - There was a gap to fill between models the "30V" amps AMP1,...
Hi all, I need help, please, with where to start looking for faults with my new build Amp15. Problem: when muted, the output voltages appear...
Hi, I'm replacing the "lo-fi" preregulators in the Amp15 with nice PS4's. I believe I will be tossing out d4, d5, d8, d9, r41, r42, r44, r45, q3...
Hi colleagues, I'm new in building Class-D(or T) amps, but basically an experienced developer. My focus is normally more on the development of...
I have checked contents of all bags to long bom. Bag 2 lists 4 pcs: Met. Film 0.4W 3.4mm 10Kohm 4 R11,R12,R122,R222 I got 2 pcs. I got 2 pcs...
Hey all, so far I've successfully built an Amp6b and Amp9b and they both work well. I'm now after something a little more powerful so I've decided to...
I've read through the assembly guide, twice now so I'm familiar with what order to do things. There appears to be a few errors with the BOM so I...
Amp7 problem (don't work) I've tested for the first time my amp7. And don't woks. 1) the supply after the (first!) connection become +47v and...
Hi, 1st I just want to say that the Amp7 isn't the ideal 1st build before someone else comes along and says the same thing :D But I like the...
In the amp7 the two power transistor q7 and q6 are overlapped with the soldering point of r43 r44 and r45 r46. As a result the transistor don't...
Halo everyone.. I am thinking to start a amp project with a friend, fist amp (and bigger project) for me but my buddy has done a lot like this in...
Building a poweramp with 4 channels, 2 x amp7 kits. Ive read that a good choice for the "extra" supply would be the 41hz kit and a 2 x 12v toroid....
Me again:o Stole text from more10 long amp7 posts http://www.41hz.com/forums/showthread.php?2431-Amp7-bom-questions/page2&highlight=amp7 ...
AMP7 C100 + C200 Input DC blocking Capacitator. I cant figure out how to tell the polarity of c100 or c200 for that matter, I cant find a mark...
As the tittle says, im a bit challenged:) as the amp7 build plan isnt very informative:confused:. basic question, bom says 16,16-2 but no place...
Hi, After mounting 2 AMP7 kit , I am interested to mount a new AMP7 but just one way. Is it possible to mount only a single way on the PCB ??? ...
Is it possible to make a speaker protection modification just by replacing the FETs with NPT IGBT?
Have replaced the left FET which I burned off. Reconnected power: +-40 V. The board won't go out of mute state. when I messure the voltage across the...
I bought a 40 v toroid for my amp.I tested and the unit sounds great.My only question is : after 1 hour of use the large electrolytics and even the...
Hi, I'm starting a new Amp15-PS build and I've noticed some optimizations and tweaks being posted in the forums. I wanted to collect these before...
Hello everyone, I'm new to the forum and the DIY audio. AMP7 I received my kit and I have some difficulties to do so. In my BOM (rev 1.00.00,...
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