Premium On-Board Preamps
Perfect Tone
Highly responsive. Clean and Dynamic.
GregoryPreAmps – Handmade Bass Preamps
Every preamp is handmade with precision – crafted for bassists who demand the best.
Our circuits deliver dynamic, natural tone: deep lows, rich mids, and crystal-clear highs.
Each installation is individually tailored to your instrument to ensure perfect adjustment.
👉 Ready to upgrade your sound?
⭐ Customer Reviews ⭐
The best bass guitar preamps I've ever had. I can't stand all the others. I highly recommend them because they're worth it.
Finally got the custom built G-BP3 installed in my Muckelroy bass and it is a total game changer. Huge round fluffy lows that are all kinds of tight and together. Crispy mids & highs that sing and aren’t overbearing and shrill. You have breathed new life into my bass….thank you.
Very versatile preamp, a lot of hard labour and thought is put into this. My bass sounds so much better and more versatile thanks the G-BP3 preamp which was built for my Sadowsky. Definitely worth checking out!
Really like that new Gregory Preamp (thanks Grzegorz Kościk) can just use it on its own direct with a Neve DI, it can offer a full spectrum of tones and the floor box preamp is pretty much redundant.
Love working with GregoryPreamps G-BP3 preamp. Sounds tight and clear! Grzegorz did a fine prewiring job based on a picture I sent to him. Check out his preamps!
I’ve never played an instrument built with such masterful craftsmanship. Onboard there’s also an absolutely brilliant preamp from GregoryPreamps, also from Poland 🙂
An absolutely brilliant preamp from GregoryPreamps — another gem from Poland 🙂
Hi, the bass is finally assembled and preliminarily tested, and I have to say the preamp is world-class – it works perfectly with the pickups and does what I expect, and even more. Thanks again for the great work, and I’ll definitely reach out for future projects 🙂
Just did some quick recordings…absolute superb sound! I’ve never had so much fun with a preamp 😎
I’ve tested it. This preamp is amazing!!! Thank you for a great product, fantastic communication and support! Best regards.
I have a Gregory Preamp in my Fender Jazz Bass Deluxe V USA 2012 and I’m very happy with it.
After I replaced the preamp with a Gregory, my bass started sounding much better! Highly recommend!
Mr. Grzegorz’s preamp has elevated my bass to ‘Premium’ sound quality. Additionally, great communication and technical support. Greetings and best wishes for your success!
Great communication, fast order processing, the product meets all expectations, 10/10 from me!
Thanks for the preamp. It’s excellent, love the musical EQ points. It’s very quiet.
The guy who ordered a guitar from me couldn’t believe that the preamp is a Polish product.
Good evening. I’m impressed. The Yamaha sounds amazing. Thank you very much.
Everything works as it should. I’ll be recommending it. Stay in touch!
Your preamp is excellent!
Everything works as it should, and I’m very satisfied.
Thank you very much, one of the units is already with the client, and they are very satisfied 🙂
I installed the preamp and now the bass sounds exactly as it should – clean, dynamic, and with a full range of tones. I really recommend it!
It does the job!
Finally got the custom built G-BP3 installed in my Muckelroy bass and it is a total game changer. Huge round fluffy lows that are all kinds of tight and together. Crispy mids & highs that sing and aren’t overbearing and shrill. You have breathed new life into my bass….thank you.
First impressions of the @Bartolini P25 CBC pick-ups with the GregoryPreAmps G-BP3 pre-amp is great.
I installed the preamp, and it sounds beautiful.
The best preamp I have ever played!
Simply killer.
…and more happy customers!
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