Bottlehead Forum
General Category => General Discussion => Topic started by: Natural Sound on November 13, 2018, 05:49:34 PM
-
Well I guess I dragged my feet too long. I've been wanting a passive-pre for my Paramour II 45's for a while now. I like to keep the audio path as simple as possible. I recently came across some discretionary funding and was ready to jump on a submissive. Only to find out that it has been discontinued.
I've heard good things about khozmo.com's products in the past. Their pricing also fits well within my budget. If I decided to go this route what would be a good impedance match for me? I mainly use a Bottlehead DAC during my listening sessions so a solid 2v at the input will be available.
10k, 20k, 50k, 100k and 200k seem to be the options.
Since most bottlehead kits employ a 100k potentiometer is it safe to assume that a 100k passive-pre will provide acceptable performance? Or should I take my que from the Submissive specs, "20K ohms at the lowest end of the range to to 40K ohms at the highest end." for something more acceptable?
-
What do you think your cabling will look like with this setup? If you need more than a couple of feet between the passive and the Paramours, then I'd lean more toward the 10K or 20K selection. If you plan to add a Reduction or Eros as a second source, then the 50K unit will make more sense.
The 100K and 200K controls are not suitable for use in a passive preamp.
-
Thanks Paul. I hadn't thought about adding a phono pre but its a solid possibility. (I'm still using a c4s seduction but an upgrade to an Eros may be in the cards). Cabling will be as short as possible. 2 feet or less is likely.
-
It sounds like the 50K control is a good idea. When I have built similar passive preamps in the past, I have built the output cabling into the chassis so that it's harder to forget that they need to be short! (Also remember that if you want to use a powered subwoofer, use the speaker level inputs)
-
Well I guess I dragged my feet too long. ... Only to find out that it has been discontinued.
Send me a PM, I can help you out.
Craig