The high frequency is pretty much gone when yo uuse the supplied choke. I put an oscilloscope trace some where here in teh forum
Then it is better that you divide that voltage with two resistors, for example, 1K + 510ohm, with the 510 ohm from the "Module ON" signal to GND, and the 1K resistor from "Module ON" to preamp +15V, do you follow me?
Make sure that you are using the right pins on the BP4078 3-pin on/off connector. Remember that the one that is near the INPUT connector is +5V (don't use this pin), the central one is "Module ON" and the other one is GND.
Sergio
Make sure that you are using the right pins on the BP4078 3-pin on/off connector. Remember that the one that is near the INPUT connector is +5V (don't use this pin), the central one is "Module ON" and the other one is GND.
Sergio
Hi, ssanmor
How do you think about using SPS80 for leach superamp 250W(stereo), or even bridged 800W(stereo).
Does anyone have the experience?
How do you think about using SPS80 for leach superamp 250W(stereo), or even bridged 800W(stereo).
Does anyone have the experience?
Some users have reported good results with other linear Class-AB amps. There shouldn't be any problem with this either.
Just need to know the required rails voltage. SPS80 can be made from +/-45 to +/-60V (standard version) or from +/-60V to +/-85V (HV version).
For 250Wx2, no problem, as the efficiency of the amp will require around 800W. For powers above that, one supply per channel is recommended.
Best regards,
Sergio
Just need to know the required rails voltage. SPS80 can be made from +/-45 to +/-60V (standard version) or from +/-60V to +/-85V (HV version).
For 250Wx2, no problem, as the efficiency of the amp will require around 800W. For powers above that, one supply per channel is recommended.
Best regards,
Sergio
ssanmor said:
That's a 3:1 voltage divider, to reduce the +15 to +5, correct?
I see ackcheng reduced the residual carrier by following the choke with a 0.47 uF capacitor. Would there be a problem with using a larger cap, say in the 1 to 10 microfarad range? Thanks.
Yes, that's a voltage divider, you are correct.
About ackcheng experiment, I think it did so for a single output application for his tube amps. You won't have any problems if you simply add the chokes in series with the rails.
About ackcheng experiment, I think it did so for a single output application for his tube amps. You won't have any problems if you simply add the chokes in series with the rails.
can I use ucd400 modules with BASH power supply from klipsh pro media speakers? it's output measures -51/+51
it was supplying power to five 30w amps.
it was supplying power to five 30w amps.
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