Syzygies
500+ Head-Fier
- Joined
- Nov 16, 2004
- Posts
- 589
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- 11
Thanks. I just reread this thread, and I think I have a handle on this now. I ordered one of these beasts.
People should look at How Stepped Attenuators Work.
Do the back two sections come off? Could one jury-rig a second switch from them? For economy, one might want to consider shunt or series attenuators, using two sections of this beast and half as many resistors. Would also save space.
In another thread, amb and I discussed the DACT atten with the M³ amp. He raised concerns about interconnect length, interference, working against benefits of the atten. More of an issue with a monster like this.
I see this primarily as the "control" in audio experiments. Can one populate it with $20 to $30 of resistors, and get better sound than using a pot? (Probably; hard to beat the ladder design.) If I were going to spring for $1 resistors, I'd also spring for a better, smaller switch.
As for the boards, shouldn't they be two-sided with a ground plane? This whole idea sinks or swims on beating the issues that concern amb. We'd also want to shield the interconnect...
How do people want to use this? It would be nice if the finished product was interchangeable with an Alps Blue pot, dropping into the same holes in an amp board (and leaning way forward!).
People should look at How Stepped Attenuators Work.
Do the back two sections come off? Could one jury-rig a second switch from them? For economy, one might want to consider shunt or series attenuators, using two sections of this beast and half as many resistors. Would also save space.
In another thread, amb and I discussed the DACT atten with the M³ amp. He raised concerns about interconnect length, interference, working against benefits of the atten. More of an issue with a monster like this.
I see this primarily as the "control" in audio experiments. Can one populate it with $20 to $30 of resistors, and get better sound than using a pot? (Probably; hard to beat the ladder design.) If I were going to spring for $1 resistors, I'd also spring for a better, smaller switch.
As for the boards, shouldn't they be two-sided with a ground plane? This whole idea sinks or swims on beating the issues that concern amb. We'd also want to shield the interconnect...
How do people want to use this? It would be nice if the finished product was interchangeable with an Alps Blue pot, dropping into the same holes in an amp board (and leaning way forward!).