1970s Acoustic Control 150 & 150b Amplifier Heads

Vintage solid state amps, made in So. Cal

Recently, I've made it known that Takamine is the favorite among acoustic guitars and Ibanez the preference of electric guitars. With that in mind, Acoustic Control is the brand of choice when it comes to amplifiers. The first pro rig that I ever had is an ACC 450 plugged into a Randall RB215 and that plays a large role in the interest.

Years later, I would score the ACC 230/403 half-stack that was featured in post #2 here at SCGM and the beast was unleashed. The guitar head was found at a great price just a few months after the 230 and also featured with a Sunn 412L cabinet that was picked up just down the road. One of the previous owners modified this head by adding a pot where one of the input jacks used to be and I think it was a way of controlling the level of the reverb and tremolo effects without a footswitch.

The bass head was found earlier this year by a local seller and is in great shape. The power cord has a couple of rough spots, but it still in working order. These are essentially the same amps, but the guitar version has the effects. The other cool thing is that I was finally able to find a footswitch for a decent price. These things can sometimes cost close to $100 on their own and that is just outrageous.

Thanks for looking, more high-resolution photos here.

1987 Gallien-Krueger 200RCB Bass Amplifier Head

Vintage micro-sized amp, in excellent cosmetic and working condition

This is something that just fell into my lap yesterday, a killer little bass head with an on-board EQ and chorus. And of course, it's GK, one of the top names in bass amps.

I haven't messed around with this too much yet, having it for just over 24 hours, but it looks and sounds really clean. No noises whatsoever when pushing the knobs around and the chorus is right in line with 1987. This is a 100-watt amp, so it should be perfect for playing bars and small clubs, which is most likely what it will be used for from here on out.

Series II is listed on the back, but I haven't been able to find much information on this amp to know exactly what that means. I've read that this amp does contain many of the same parts as the 400RB from the same period, one of the top bass heads of all-time and still in production to this day.

Thanks for looking, more high-resolution photos here.