About Me: I built my first audio amp in 1977. My band needed an amp for the monitor speakers so I built one. Wasn't great but it did the job. In the 47 years since then I have designed and built hundreds of audio circuits. Most of that time I was working for small companies designing products for them. Now I'm working for myself bringing you useful products based on solid and often original designs. |
Guitar Preamps and Buffer Amps |
GPA-2 and GPX-2 preamps.
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While hosting the Java Café and Fox & Goose open mic's, I frequently had a problem with guitars and mandolins that didn't put out enough signal when they were plugged into my PA system. Acoustic guitars with Dean Markley pickups are almost always a problem. Well, I don't have that problem anymore. I have designed and built several different guitar preamps and buffer amps that I use at my shows now. I had three different preamp models with me last night (11/29/04) at the Java Café open mic and used them with a dozen different guitars and a mandolin and never had a level problem all night. And Yes, they all Sounded good too. No more of that tinky sound.
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GPX-2 and GOX-2 preamps.
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Just bought the GPH2448 on Tuesday. I tried it out with an electric guitar (single coil pickups) and an electro-acoustic (piezo pickup with on-board battery powered preamp. Both sound good through the GPH into a mixer mic preamp, more clarity and fullness than if plugged directly into the mixer. I got it to serve as a Hi Z buffer into mixers that lack Hi Z inputs. After I've had more chance to use it, I'll report my findings. Dan Feldman |
GPA-2 for me! I use it with my Eastman mandolin and been using it with my electric guitars as well. Andrew Foster |
I bought the basic preamp and it sounds great. GPA-2Z2 with Breedlove guitars and Martin D18 using Fishman pop-in humbucker pickup. Rusty Sterling |
Dave Baldwin created this preamp for guitars…it’s magic…made all guitars “young “ again..,,probably get additional ones since makes such a difference…contact Dave or even SJK should you want one…makes guitar feel like it’s not amplified… Steve Krohn |
After getting my GPA-2 preamp from Dave, the sound of my Martin D18 has never been better. And what's even more impressive is in the studio. When I plug directly into the board, the sound of the guitar is so nice; don't need much gain on the input to get the nice sound either. When I use an amp, it's the same. Such a warm and full sound. Thanks Dave for creating this great pre amp.
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