stepped attenuators


Stepped attenuators are new to me and I must say that I'm impressed. I recently acquired a new Burson PI-160 and it leaves the older unit (which I have) in the dust. Burson says that the signal is at its weakest when going through the volume control and tried and tossed out a remote in favor of the attenuator. I can see why. I have all the detail, dynamics, nuance, tone, sound stage, etc. at lower settings that I no longer have to crank it for things to get lively. Its like each setting is all that Burosn intended (hardwired, if you will) allowing all the signal to come through undistorted. I know there's more to this unit than the volume control but I feel it must have a huge influence on the sound quality.
How do you feel about them?
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Showing 1 response by mitch2

Rgs92, simply order a pair of Rothwell in-line attenuators for 10dB attenuation - they come in either rca or XLR versions. I would place them between your preamp and amp - at the input to your amplifier. There are a couple of reviews you can google.

Regarding stepped attenuators, I have had several on preamps I have owned over the years and greatly prefer these discrete resistor volume controls to the rather inexpensive and not very accurate Alps volume pot. Unfortunately, even manufacturers of expensive preamps use the Alps because it is the least expensive and easiest method of implementing remote volume control. More recently, there are manufacturers offering relay activated discrete resistor volume controls that are set up for remote operation.

For those replacing a pot with a discrete resistor stepped attenuator, I would stick with the same impedance value but you could change the gain. I believe Goldpoint offers this option by adding a single resistor to their stepped attenuators. Check out the Goldpoint website or call them for more info. Also, the Bent Audio guy and others now offer motorized options for DACT and Goldpoint attenuators that might be worth checking out if you need a remote. Like G_m_c, the first to respond to this thread, I am very happy wiht the DACT attenuator in my TEAD Vibe preamp.