> I have a PAS-3 I'd like to upgrade, boards,switches, volume, jacks, etc.
> what are the sonic differences between the original pc-5 & pc-6
> boards as opposed to your sp-6 and sp-8 boards ?
> also do you sell the boards already built up for a nominal fee ?
> and do any of these board still retain the tone controls ?
> OR is it also possible to ship you my pre-amp and have
> these upgrades done ?
And here is the answer again for anyone interested . . . .
see my PAS3 upgrade page and see my SP8 preamp page (links at bottom of message)
Also as I've posted elsewhere on this or some other Dyna forum, I've owned more than a dozen preamps over the past dozen years, and although some people will disagree with me, the PAS3 sits
near the very bottom of the list. Moving up the list in both price and quality, are all of the classic CJ preamps (PV5 thru PV12), Audio Research SP6, SP8 thru SP11, Transcendence Grounded-Grid, Tubes4HiFi SP6 or SP8, and the Glassware AIKIDO. I believe the Foreplay is overpriced and although better than the PAS-3, certainly not worth it unless you can buy a used one for half price.
On a value basis, especially if you are looking for a preamp WITH a phono stage (rather than just a separate line stage) I know of NO other preamp kit under $1000 that matches the Tubes4HiFi SP6 or SP8.
As for tone controls, most modern preamps do not use them as they have a detremental effect on the quality, and need an extra gain stage to make up the 20db or so of signal losses imposed.
I do have a PAS3 upgrade that includes a premium quality line stage with tone controls.
I can supply finished PCBs or KITs ready to install in the chassis of your choice.
See these pages for more info . . .
PAS3 upgrade page
SP8 preamp page
Last edited by tubes4hifi on Sun Mar 04, 2012 1:11 am; edited 2 times in total (Reason for editing : updated links)