Bill, here is how to wire the mute relays with the Remote Controller Board (RCB)
1. Run the =12V relay from the PSU together with the ‘MUTE’ output from the RCB.
2. The +12V drops off to each +12 V relay supply on each board
3. The ‘MUTE’ drops off onto the adjacent mute control pin
(on a future iteration of the RCB I will connect pin 2 of J2 to pin 2 of J3 make wiring up the mute control easier)
1. Run the =12V relay from the PSU together with the ‘MUTE’ output from the RCB.
2. The +12V drops off to each +12 V relay supply on each board
3. The ‘MUTE’ drops off onto the adjacent mute control pin
(on a future iteration of the RCB I will connect pin 2 of J2 to pin 2 of J3 make wiring up the mute control easier)
Well, while I am still struggling with the remote control board I thought I would reflect on the sound. Since my current preamp is a BA2018 that is what I am comparing it to, I do not consider myself a good person at reviews, but I will trudge on. I do believe the sound character is driven by the fets,in my case I am using the TI fets. The sound is much brighter than the 2018 and the detail brings vocals more forward, the sound stage cues seem to be more significant because I am hearing a larger sound stage that I had previously thought was driven by the asymmetrical room. Since my current amps in rotation are my Pete Millette uni-amps (KT88 tubes) the sparkle is welcome and paired well with the lush sound of the amps. I am not sure if it may be a tad bright with my solid state amps I will have to see, since I run Roon and also room correction software on a mini DSP I can equalize with ease. I also was wandering if while both the TI and LSK both measure well if the fets will sound different. Since I have a spare set of boards and will have to build them up and see.
Bill
Bill
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Andy, they must be linked as you have done. I did this to make sure the + and - supplies were completely separately regulated before combining them.
LED silkscreen - apologies for that. Seems the polarity is obscured during the board manufacture. I’ll have to update future boards.
LED silkscreen - apologies for that. Seems the polarity is obscured during the board manufacture. I’ll have to update future boards.
Andy,
I think you will really enjoy this preamp, I bought some new headphones and have been just letting them play all the time to break in the diaphragms with my amps turned off probably put another 40 hrs on the preamp. When I turned my amps back on I was surprised the improvement. My first impression was it was a little bright, that is completely gone and I prefer my Alpha Nirvana to my tube amps now. I upgraded from my Meze 99 Classics ( witch are a darn good headphone for the price) to hifiman Anada and am really enjoying the headphone amp as well. Looking forward to the Wolverine.
Bill
I think you will really enjoy this preamp, I bought some new headphones and have been just letting them play all the time to break in the diaphragms with my amps turned off probably put another 40 hrs on the preamp. When I turned my amps back on I was surprised the improvement. My first impression was it was a little bright, that is completely gone and I prefer my Alpha Nirvana to my tube amps now. I upgraded from my Meze 99 Classics ( witch are a darn good headphone for the price) to hifiman Anada and am really enjoying the headphone amp as well. Looking forward to the Wolverine.
Bill
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