Questions to W4S:
1. Does the STP-SE preamp support the Balanced XLR AES48 Standard for the 2 XLR outputs?
2. Can I hook up 2 amps to the preamp. I want to use a Benchmark AHB2 amp and a Luxman m900u amp connected to 2 different speaker sets. I would turn one of the amps OFF when using the speakers connected to the powered up amp.
3. The balanced input impedance of your Benchmark amp is 50K; the balanced input impedance of the Luxman amp is 34K. Assuming those numbers apply when each amp is powered down their combined impedance is (50 x 34)/(50 + 34) = 20K
Answers from W4S:
BTW - that Luxman c900u does not support AES48. I forgot that I asked the engineers.
The W4S is what I will do a home trial with first. I many even try their w4S Anniversay DAC though the Lumin X1 DAC is something I wanted to try with a preamp that does not have an internal DAC. In about 10 days I see where the money to do this comes from.
1. Does the STP-SE preamp support the Balanced XLR AES48 Standard for the 2 XLR outputs?
2. Can I hook up 2 amps to the preamp. I want to use a Benchmark AHB2 amp and a Luxman m900u amp connected to 2 different speaker sets. I would turn one of the amps OFF when using the speakers connected to the powered up amp.
3. The balanced input impedance of your Benchmark amp is 50K; the balanced input impedance of the Luxman amp is 34K. Assuming those numbers apply when each amp is powered down their combined impedance is (50 x 34)/(50 + 34) = 20K
Answers from W4S:
Thank you for your email and interest.
1) yes, everything is star grounded.
2) yes, this will work well assuming the amps dont short the signal when off.
3) the input impedance of the amps are combined when on or off and as long as the paralled value is higher than 15k, there will be no problem.
Thank you and talk to you soon,
EJ Sarmento
BTW - that Luxman c900u does not support AES48. I forgot that I asked the engineers.
The W4S is what I will do a home trial with first. I many even try their w4S Anniversay DAC though the Lumin X1 DAC is something I wanted to try with a preamp that does not have an internal DAC. In about 10 days I see where the money to do this comes from.