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OLDER DECWARE GEAR SUPPORT >> CSP, CSP2, CSP2+ >> CSP2 - user adjustable output voltage
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Message started by MAC -SteveH on 07/30/06 at 15:19:29

Title: CSP2 - user adjustable output voltage
Post by MAC -SteveH on 07/30/06 at 15:19:29

How do you go about adjusting this.

I'm thinking - put and RCA with pigtails into each output and connect a VOM to adjust the output DC voltage. Is it that easy?

Tnx, Steve

Title: Re: CSP2 - user adjustable output voltage
Post by Steve Deckert on 07/30/06 at 23:05:13

It is that easy provided you have a sine wave generator set to an output level of 2 volts at a frequency of 1000 Hz. I set them up here at the shop for 4 volts out with 2 volts in. Note this does not effect headphone output level.

Steve

Title: Re: CSP2 - user adjustable output voltage
Post by MAC -SteveH on 07/31/06 at 00:22:15

Steve -

Should there be any problem with the CSP2 feeding a chipamp?
It seems, just connecting them, the chipamp starts clicking away!

Any thoughts?

Title: Re: CSP2 - user adjustable output voltage
Post by Steve Deckert on 07/31/06 at 23:06:35

If the Chip amp is clicking, that means it's probably going into protection. Some type of oscillation perhaps? I'll see if I can duplicate it on this end. You might inspect the input portion of the chip amp and see if there is a cap to ground limiting the high frequency response of the input.

Title: Re: CSP2 - user adjustable output voltage
Post by Steve Deckert on 07/31/06 at 23:11:04

If anyone wants to calibrate the CSP2 to have perfectly matched channels like we set it up here at the shop, I forgot to mention that a TEST CD with a 1000 Hz test tone will work in place of a frequency generator. Simply use an AC voltmeter on the outputs and adjust both channels to match. Of course a person could also step into the listening position and adjust one side or the other to obtain a strong center image.

Title: Re: CSP2 - user adjustable output voltage
Post by Pyewacket on 08/11/06 at 16:37:29

"Of course a person could also step into the listening position and adjust one side or the other to obtain a strong center image."

This sounds like more fun... :)