Hello all, just wanted to share a bit of my experience with installing a Sadowsky pre-amp into my Squier Contemporary Jazz HH in Satin Graphite Metallic:
(The one on the right, if you weren't sure
)
I bought it with "electronics problems" but otherwise new.
I found at least the volume pot was bad, but was having trouble sourcing a matching replacement. I decided, in light of that, and possible other unknown issues with the stock equipment, I decided to just upgrade all of it.
Perhaps obviously at this point, I eventually settled on the Sadowsky unit
Part of the reason for this was that it had the same layout and functionality as the original, while also adding a passive bypass push/pull at the tone pot.
I had concerns about the pots working on body-through applications, since it's primarily designed to be an on-plate drop-in unit, but after watching Roger Sadowsky do an similar install on his YouTube channel, I felt more confident about taking the chance, and ordered the kit from Fret Nation (since they and I are both in CA, shipping/delivery time was very quick).
After watching Roger's video, I knew to expect that the Sadowsky pots, with lager-diameter threaded shafts, would require the body holes to be reamed slightly, so I dropped by Harbor Freight on the way home from work and picked up a t-handle reamer, similar to what he used in the video:
The tape in the pic, I put on after getting the first hole to the correct diameter, to help speed up the process for the remaining three.
The pots worked out fine
For some unknown reason, I didn't get any pics of the original wiring before I removed it, but I did get you guys a consolation prize, of comparison shots of original vs. Sadowsky
Installation was relatively straightforward; I had to re-use both the original barrel-type output jack, and the original battery connector, as the kit-supplied parts would not work for my application.
An early stage of the install:
I wired in the original, SQR pickups as suggested on this forum, connecting the red wires to the Sadowsky blend-pot, grounding the white wires, and taping off the black wire.
Final shot before the cover went back on:
I was originally going to re-use the factory knobs, to better match the rest of the (black chrome) hardware:
But, an issue that I ran into was that the stacked bass/treble pot in the Sadowsky kit has smaller diameter knob-shafts than the original, so I ended up using the provided Sadowsky knobs instead:
Overall, not a super-difficult install. And now I can actually play the bass
Sound is good, I like the pre-amp features and controls. There is a noticable volume drop when switching to passive mode, I don't find it excessive, but others might.
I feel it's likely related to the pickups themselves, just not having a high output as passives.
I wouldn't call them low output though, maybe sort of mid-pack, imo.
But, when in active mode, output is pretty high, more than the EMG Rip Tides/BTS I have in an Ibanez 5-string.
Looking forward to tweaking the set-up to my tastes, and getting in some more play time with it
(The one on the right, if you weren't sure
I bought it with "electronics problems" but otherwise new.
I found at least the volume pot was bad, but was having trouble sourcing a matching replacement. I decided, in light of that, and possible other unknown issues with the stock equipment, I decided to just upgrade all of it.
Perhaps obviously at this point, I eventually settled on the Sadowsky unit
Part of the reason for this was that it had the same layout and functionality as the original, while also adding a passive bypass push/pull at the tone pot.
I had concerns about the pots working on body-through applications, since it's primarily designed to be an on-plate drop-in unit, but after watching Roger Sadowsky do an similar install on his YouTube channel, I felt more confident about taking the chance, and ordered the kit from Fret Nation (since they and I are both in CA, shipping/delivery time was very quick).
After watching Roger's video, I knew to expect that the Sadowsky pots, with lager-diameter threaded shafts, would require the body holes to be reamed slightly, so I dropped by Harbor Freight on the way home from work and picked up a t-handle reamer, similar to what he used in the video:
The tape in the pic, I put on after getting the first hole to the correct diameter, to help speed up the process for the remaining three.
The pots worked out fine
For some unknown reason, I didn't get any pics of the original wiring before I removed it, but I did get you guys a consolation prize, of comparison shots of original vs. Sadowsky

Installation was relatively straightforward; I had to re-use both the original barrel-type output jack, and the original battery connector, as the kit-supplied parts would not work for my application.
An early stage of the install:
I wired in the original, SQR pickups as suggested on this forum, connecting the red wires to the Sadowsky blend-pot, grounding the white wires, and taping off the black wire.
Final shot before the cover went back on:
I was originally going to re-use the factory knobs, to better match the rest of the (black chrome) hardware:
But, an issue that I ran into was that the stacked bass/treble pot in the Sadowsky kit has smaller diameter knob-shafts than the original, so I ended up using the provided Sadowsky knobs instead:
Overall, not a super-difficult install. And now I can actually play the bass
Sound is good, I like the pre-amp features and controls. There is a noticable volume drop when switching to passive mode, I don't find it excessive, but others might.
I feel it's likely related to the pickups themselves, just not having a high output as passives.
I wouldn't call them low output though, maybe sort of mid-pack, imo.
But, when in active mode, output is pretty high, more than the EMG Rip Tides/BTS I have in an Ibanez 5-string.
Looking forward to tweaking the set-up to my tastes, and getting in some more play time with it

).
), or if its not. 
(on a side note, that amp, even though only 100-ish watts, is kinda freakishly loud through every cab I've tried it with......)