Soundblaster 16, volume wheel & volume level issues \ VOGONS

Soundblaster 16, volume wheel & volume level issues

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First post, by retro games 100

Posted on 2009-01-23, 12:14

retro games 100 Offline

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Model CT1750. It's the one with 3 input jacks (line in, mic, speaker) and a volume wheel.

I've got some basic headphones plugged in to the speaker port. Everything sounds "distant / far away", low volume, lacks bass, "tinny" and hissy. (Hehe, perhaps that's normal? 🤣 ) Also, moving the volume wheel at the back of the card has no effect.

Does this soundcard not perform well with a "passive" output device, such as cheap headphones? Perhaps I need to mess about with jumper(s) to get some amplification?

Any sage retro wisdom would be very gratefully received! 😀

Edit: Solved. (I'm quite surprised I managed to figure out something which required a degree of intelligence.)

I went to this website -

http://stason.org/TULARC/pc/sound-cards-multi … R-16MCD-AS.html

There's a set of jumpers called OPSL & OPSR for internal amplification. I set both to pins 2 and 3. (They were both on pins 1 and 2).

Now, I can slide the volume thumb wheel at the back of the card, and it has an effect. Also, the sound is louder.

Reply 1 of 6, by 5u3

Posted on 2009-01-23, 12:49

5u3 Offline

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Most likely the output of your card is set to "Line-Out" instead of "Speaker-Out". There should be a pair of jumpers near the output connectors, which need to be moved into the other position. This will activate the onboard amplifier and the volume wheel.

Here is a diagram with the jumper settings described. The ones for the onboard amp are labelled "OPSL" and "OPSR".

Edit: Ah, you found out yourself in the meantime. Well done!

Reply 2 of 6, by retro games 100

Posted on 2009-01-23, 13:33

retro games 100 Offline

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5u3 wrote:
Edit: Ah, you found out yourself in the meantime. Well done!

I'll be working for NASA next...I'm sure they need their bins emptying. 🤣

Reply 3 of 6, by Moogle!

Posted on 2009-01-23, 16:40

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*can't remember how many times he's mentioned the OPS jumpers here, and what they do*

Reply 4 of 6, by retro games 100

Posted on 2009-01-23, 16:48

retro games 100 Offline

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Moogle! wrote:
*can't remember how many times he's mentioned the OPS jumpers here, and what they do*

😦

Reply 5 of 6, by prophase_j

Posted on 2009-01-24, 06:22

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I have a ct-1740. Does anyone know where to find setting for all the jumpers on this thing?

"Retro Rocket"
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Reply 6 of 6, by Moogle!

Posted on 2009-01-24, 06:35

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I beleive we discussed a few models that didn't have them, but I cannot remember what thread it was in.

*checks TH99*

Ah-ha.

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