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Although this is now listed in AliExpress I am unable to actually purchase: all sold out!

Yes: you will need OpAmps for U1 and U2 also relocate the 0 ohm resistor (meaning it acts as a jumper) see my pics here Post in thread '9 Channel 3E Audio Amp(s) project' https://audiosciencereview.com/forum/index.php?threads/9-channel-3e-audio-amp-s-project.53855/post-1983201

I am not noticing any delays with the wireless, perhaps the Dirac room correction has solved that? I am just hung up on the idea that wired > wireless (always). My room configuration (unusually wide ... it's not a dedicated home theater but a larger open room) does now allow any reasonable...

yes really. Nordost (beyond speaker cables) also markets flat high-end interconnect cables. From their website: RED DAWN ANALOG INTERCONNECTS The Red Dawn Interconnect represents the performance pinnacle of the Leif Series. This cable yields the best performance possible in an interconnect...

Agree that many (most?) RCA and XLR cables are indeed shielded. And no doubt shielding is a desirable feature! But there also exists un-shielded forms of both RCA and XLR interconnect: some low end (amazon/ebay) and some ultra high end (Nordost Red Dawn or Blue Heaven). My Q to this forum is...

Hello, I am re-carpeting my home theater area which currently has (in the rear) an Episode ES-SUB-MEGA-D12 subwoofer which is a dual 12" powered (1000W RMS) sub that has built in wireless receiver (operates on 2.4 GHz ISM band). I've never really had any major problems with this wireless...

I also have the RZ50 and am now building a 9 channel amp (using tpa3255 just like Fosi V3 mono see my DIY thread) for same reasons you cited.

After consuming 100 hours of YouTube videos on PCB routing, surely this makes me an expert! :)

I will definitely check that out once I get past this work on the MCU controller (meaning ... it could be a few weeks!). Is the case front really aluminum, or lots of plastic ?

As for the relay board, I realized that 110V components do not belong on a 5V control board and have moved to this external relay board (<$3 each from AliExpress or Amazon) which I've used in other projects. On my bench, I tried many cycles and the maximum current draw is 3.83 mA so I think that...

Thanks (again) @mcdn for catching my schematic errors (I've credited you with the Review :) on this latest revision). The misplaced diode was my lack of understanding (but your explanation makes total sense - thanks!); while the backwards transistor was a drafting mistake ... I just now learned...

ah now I see your passive relay control circuit! Me being more of a software (vs hardware) guy, I wonder if I could just create the right variable voltage from that same one MCU output by using internal DAC (or PWM to generate desired duty cycle)? Finally a sufficient reason to dust off my...

Appreciate the tips! Agree TRIG needs a current limiting resistor (my prototype has this but I missed in schematic). Relay/lowering voltage - somehow I have used up ALL my MCU pins (!?!) so I will just have to go with a high quality component and take my chances. But this is excellent design...

My MCU design, still working on this in breadboard form UPDATE: old diagram is posted below see revised design on Page 2 of thread

... but that front volume control CAN be defeated (entirely out of the audio circuit) yes?

Being a fairly inexperienced amp "designer" I have lots of questions so I would like to measure several variations of the amp: master/slave vs all masters .... with/without shielded drains connected to chassis ... etc. Therefore I am purchasing the necessary equipment to take distortion...

Shots below of my working amp in Frankenstein case, some pieces not shown (fans & prototype raspberry pi controller ... I am working on an PIC16 based MCU). What I want is a quality aluminum case 17" wide (standard width) and 12" deep by 5" tall but I just cannot find ANYTHING out there (even in...

Basically the LSA Warp 1 at less than half price AND with proper trigger controls. Exactly what the world needs.

to be clear, the wiring advice I gave you DID indeed "help" to at least enable the slave module again to produce audio? Because previously you had stated My master/slave wiring advice was intended to address that problem (there's no audio) and I believe this WAS helpful as such. So what you...

Major System Components (I will provide links to each part and price after I finalize the design this is still evolving) 2 power supplies 750 watts each (one direct to 110V mains; other one is relay controlled) 3 MONO amp modules powered from PowerSupply#1 config as 1 Master + 2 Slaves...