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Stepped attenuator - making a step between levels

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Posted on September 23, 2020 at 17:43:16
airtime
Audiophile

Posts: 10550
Location: Arizona
Joined: February 4, 2003
I'm using a 25k Gold Point stepped attenuator. There is a situation where at times I need to use a step "in between" a step.

On the chart, between steps 4 and 5, the difference between the two resistors is 83 ohms. Could I add an inline 41 ohm resistor to capture that "in between" volume level.

Or should I go with a pre attenuator by cutting it down by one or two db's?
https://www.goldpt.com/preattenuation.html

 

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RE: Stepped attenuator - making a step between levels, posted on September 24, 2020 at 19:35:59
Davey
Audiophile

Posts: 2116
Joined: September 26, 2013
Yeah, if you're operating (nominally) down near steps 4 and 5 then you have way too much signal and are using too much attenuation.

I would add the pre-attenuator. Or maybe get rid of some excess voltage gain elsewhere in your system.

Dave.

 

RE: Stepped attenuator - making a step between levels, posted on September 25, 2020 at 10:19:51
hawkmoon
Audiophile

Posts: 729
Location: cleveland
Joined: July 11, 2003
Goldpoint makes a 42 position volume control. I would upgrade the volume control before doing anything else. I had the same problem with my ZTPreamp and the upgraded pots solved it.

 

Stepped attenuator stupid question, posted on September 25, 2020 at 18:55:22
airtime
Audiophile

Posts: 10550
Location: Arizona
Joined: February 4, 2003
stupid add on question. I'm using the Gold Point with the Bent Audio IR remote motor unit with 15 degree increments.

If I put in the 42 stepped attenuator and kept the same motor, would it work - within reason? And by reason what I mean is I usually listen to one station at one level. ONLY if I change the station does that require an adjustment. I'm not overly critical about that. Mainly the SET level of my MAIN listening station.

 

I was going to type the same thing. nt, posted on September 28, 2020 at 13:20:38
Tre'
Industry Professional

Posts: 14513
Location: So. Cal.
Joined: February 9, 2002
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Have Fun and Enjoy the Music
"Still Working the Problem"

 

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