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    100K Attenuator W Remote Control

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    mantha3

    Posts : 298
    Join date : 2010-11-10

    100K Attenuator W Remote Control

    Post by mantha3 on Fri Feb 04, 2011 4:49 pm

    Before I get into my question I must apologize.. I did put this on another forum I won't mention... I should have just put this question here where I'll be talking to people who have similar amps as I (Bob's ST-120 for me)

    I own a newer ST-120 tube amp and I got this with the 100K Stepped attenuator that Bob sells. I really like the sound. Just a CD player hooked up to the amp and the attenuator to control the volume.. As simple as it gets! I spoke to Bob when I did the purchase and he talked about the school of thought “The Best Pre-Amp is no Pre-Amp”… I’m sure this is a controversial topic. For me this works and I dig it.

    I do not want to buy a full preamp.. I don’t ever seem to adjust Treble, Bass, Balance etc…

    If I could have an component that had a 100K Attenuator (maybe more steps?)… And then I could adjust the volume/Attenuation with a remote control… Then the componenent had 3 or so RCA ins and the output to the amp (or maybe 2 outs but not required).. And a Audio in selector for the 3 inputs… Nice. More Source In’s then great… 2 or 3 would work… I would not even need the source select on the remote control and this could just be a swich on the component.

    I’m sure I’m not thinking of something that is all new in theory.

    Anyone have something along these lines that they purchased or built from Kit or DIY?

    Thanks all and have a good weekend.

    Bob Latino
    Admin

    Posts : 2378
    Join date : 2008-11-26
    Location : Massachusetts

    Re: 100K Attenuator W Remote Control

    Post by Bob Latino on Fri Feb 04, 2011 7:30 pm

    Hi,

    The reason that attenuator on your amp is only 21 steps is that it has to be small to fit into the area available in the stereo/mono slot. On my amp > 21 steps is just fine and they come on gradually on the the first 1/2 turn. To my ears this stepped attenuator does not degrade the sound at all. IMHO my own ST-120 sounds better with just the attenuator and no preamp.

    Below is an link to a very inexpensive ($60 + shipping) passive preamp from China with three inputs and two outputs. I have not used one myself but I guess all it must be just a 3 position selector switch with a volume control. For the time and effort to build one as you describe in your post, this one may fit the bill.

    Passive preamp with a selector switch

    Bob

    baddog1946

    Posts : 304
    Join date : 2010-02-03
    Location : Costa Rica

    Re: 100K Attenuator W Remote Control

    Post by baddog1946 on Fri Feb 04, 2011 8:09 pm

    Hi All:
    I agree with Bob it sounds better without a preamp. I have virtually abandoned my Bottlehead Foreplay III extended and only use a DAC in the path from my PC to the amp (ST-120).
    IMHO the DAC does make an audible difference and would be the only thing I would say is worth putting into the signal path. Otherwise the sound seems cleaner without a preamp in there.

    mantha3

    Posts : 298
    Join date : 2010-11-10

    Re: 100K Attenuator W Remote Control

    Post by mantha3 on Mon Feb 07, 2011 9:39 am

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    mantha3

    Posts : 298
    Join date : 2010-11-10

    Re: 100K Attenuator W Remote Control

    Post by mantha3 on Mon Feb 07, 2011 9:39 am

    Hi,

    If my post sounded like I was complaining about the pot only having 21 one steps I apologize… Not my intent. I’m happy with just the pot. On the amp and have no problems with just the 21 steps. I’m also sold on just having a stepped attenuator and no pre-amp.

    Really I’m mostly looking for the same stepped attenuator as the 21 stepped one (more steps then great) but with a remote… I’ll keep looking. Thanks for taking the time to respond Bob and baddog If I find something that works well for me I’ll share the scoop with ya.

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