Hey folks, I have my Buffalo 32 DAC with XLR outs and a SE TRS jack as well. In order to try to keep it as simple as possible, I decided against RCA outs. So I was thinking about making (or buying if they're readily available) some cables that would go XLR to RCA to feed my single ended amps...

Hey folks, So I built a B22 with a switched neutrik headphone jack. The idea was for the signal to go "through" the jack when headphones weren't plugged in to feed a pair of speaker jacks and RCA jacks. Everything worked fine with the headphones by themselves but when speakers were plugged...

Anyone have any guidance on whether a radial polyester film cap can be used instead of a metallized polyester film cap? The voltage, capacitance, and tolerances are the same. (This is for a sigma 22 build, C14/C15.) I tried searching for differences in caps but couldn't find anything useful.

Hey folks, I powered up my sigma 22's today and the first one worked fine. Second one didn't get any voltage. I realized (too late) that I had CR2 in backwards. Desoldered and resoldered oriented correctly hoping that I didn't fry anything, but alas, still no voltage. Any thoughts about what...

Hey folks, Quick question. On the attached image from AMB's site, what are the 4 little rectangle things that the "In's" point to and why are they connected to ground? I'm looking to execute this option when I convert my 3 channel to a 4 channel and wanted to make sure I did all my homework...

Hey folks, Quick question for the M^3 bass boost. I'm building a standard BOM with the boost knob. On the parts list, there is no Rbb but on the schematic, it shows a 33K resistor. I believe Rbb is only necessary if you don't have the boost knob and want to fix the boost at a certain...

Can I use this toroid for my S11 to power my M3? I'm confused about the specification about parallel and series output voltage. If I wire in parallel, 22 VAC seems a bit short as 24V is recommended on the AMB site. If I wire in series, 44 VAC seems a bit high as 40 VAC is the max recommended...

Hey folks, Just got my Er6i and love the fit and the sound for the most part but... and it's a big but... I get really bad distortion at the low end mostly apparent for bass drum hits. I'm using an ipod nano - CMOY BB - with the bass boost on. Maybe the BB is too much for it? I was using my...

Hey folks, Anyone know how the LED should be oriented in the Sigma 22 PCB? I can't seem to find any indication for polarity.

Hey folks, I'm still pretty new to the headphone scene but already really really enjoying the DIY amp process. I've build a Cmoy BB from JDS and just finished a Millet Minimax. The minimax really brought my HD650's to life and now I'm wondering if there's a different (not necessarily better...