I though about addind unbalanced to balanced conversion but didn't want to make it to complicated from the begging and figured it was really going to be for balanced use with a balanced source. I think for 3.0 I will look into
conversion. I know a Jensen transformer would work well but isn't the cheapest option. I am open for any good suggestions.
Looks like a lot of thought went into that board, nice work. On my b22 I will give Assemblycrafts BLD boards a go. They use DRV134/THAT1646 chips for the conversion, hopefully it will work ok. Im not shooting for tranformer-like performance, just an option to use SE input when needed.
Also, I remember Amb recommending me a heavy duty relay to switch speaker outputs. What relays are you using for that?
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Team Balanced B22 :)
Rig: Emu 1820->Opus Dual Differential DAC->Balanced B22->Sennheiser HD650/Beyer DT770/Alessandro MS2i
Looks like a lot of thought went into that board, nice work. On my b22 I will give Assemblycrafts BLD boards a go. They use DRV134/THAT1646 chips for the conversion, hopefully it will work ok. Im not shooting for tranformer-like performance, just an option to use SE input when needed.
Also, I remember Amb recommending me a heavy duty relay to switch speaker outputs. What relays are you using for that?
I am using Omron G6A relays.
The DRV134 looks like a pretty simple circuit to use. I need breadboard a couple different options to see what sounds the best.
Quote:
Originally Posted by CSO
Wow. Really nice stuff. Can you give a link to those nice metal switches on your front panels. Thanks.
They are Bulgin anti-vandal switches from Mouser.
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Sources:Computer->Buffalo DAC/0404USB/Nixon USB DAC and Tube DAC/Alien DAC/Archos AV500/4G Ipod/1G Nano
Headphones:Omega IIs/HE 1.2b/DT880/Darth Beyer/HD650/E4C/K240/K340/K701/K1000/ATH-W5000/AH-D5000/KSC75/Triple-Fi 10 Pro
Amps:SRM-007Ta/KGBH/Little Dot 2 ++/Millet Max Hybrid(BJT&MOSFET)/M3/B22(Balanced and 3Ch)/Xin Reference/Mini3
Interconnects: Homemade
I got some DIY fever and decided to upgrade my switchbox at work. I was tired of having a separate box to house my AlienDAC as well as the extra 12" of RCA cable that ran between the two boxes. So I decided to stick it inside the switchbox and free up the RCA jacks as an addition input. I also added a DPDT toggle switch to switch between the AlienDAC and input RCAs. I also upgrade the switch knob to a larger diameter.
I am very pleased with how it looks and works.
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Work Rig - MacBook, Alien DAC, DIY Switch Box, No Amp, AKG K701
Home Rig - Quad G5 PowerMac, Dual 23" Displays, Creative 5.1 Surround Speakers
Portable Rig - iPod Video 60Gig, HPDAC v0.1b, Grado SR 60
The DRV134 looks like a pretty simple circuit to use. I need breadboard a couple different options to see what sounds the best.
They are Bulgin anti-vandal switches from Mouser.
Really nice Naamanf... what XLR jacks are those on the faceplate?
Linear Mode
