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C-Audio SR-707 Protect Issue

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RoadRunnersDust View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RoadRunnersDust Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2019 at 2:45pm
Originally posted by Xoc1 Xoc1 wrote:

Originally posted by RoadRunnersDust RoadRunnersDust wrote:

Don't suppose anyone on this thread has the schematics for the SR404, SR606/707 and the XR3801? Embarrassed

Edit: That they'd be willing to share?

https://www.schematicsunlimited.com/c/c-audio


Heart Thanks!

Don't know how I've ever missed this googling?!
Buying myself a TFL-760H... piece by piece >.<
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qwerp View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote qwerp Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2019 at 4:21pm
The final issue i had is pretty much solved

i simply increased the input level.

I have 3 settings on my soundcard 

using a 1khz sine wave  at 0.1db from the software altering the attenuation options (small relays on the card i think)
the multimeter readings i can have are:

1. .39v ,  loud output.

2. 1.12v  potentially very loud as one would expect  (no distortion)

3. 2.27v  would be very very loud if i turned it  up (with 2.27v sine wave input and the main volume dial just slightly up I can hear a very slight distortion, I presume this is from the tl071 opamp struggling with the input level)

so that's pretty cool! 

Thank you to all that helped. especially simonp1100 : )












Edited by qwerp - 13 March 2019 at 4:21pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote simonp1100 Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2019 at 5:49pm
Originally posted by qwerp qwerp wrote:


Thank you to all that helped. especially simonp1100 : )


No worries, glad to help.

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