It is rare that a company that makes multiple pedals designs them to actually work together as a dual tone treat but Prosound has done just that with the AC Booster and RC Boosters.
AC meaning almost clean and RC meaning really clean both pedals shine in different ways and excel when being used together or driving each other.
Both pedals use 9vdc in power common to all pedal power supplies and the space saving size of these units make them ideal to go on a pedalboard and use very minimal space.True Bypass switching is standard to insure a total bypass when the units are off.
The AC Booster is an ideal soft edge overdrive. It does color the tone in a good way leaning towards soft edge drives reminisent of Carlton and Robben Ford type lead sounds. Plenty of sustain with a smooth cutting edge that makes the old tube screamer type pedals sound almost unusable. Featuring Volume , Gain , Bass, and Treble controls the AC is no one trick pony. Unlike the conventional tube screamer drive you can actually ADD bass to your signal not lose it, imagine that! This feature alone raises the bar on overdrives. Never muddy the AC is a smooth gain drive that is great for a cutting solo without relying on the huge mid hump of yesteryear. If you are into Robben Fords lead tone the AC Booster really is something to check out. With the gain backed down the AC can be used a great boost pedal with some coloration in the mix but its not always a bad thing. Backing off the volume control on the guitar cleans up the signal perfectly, the AC is very dynamic. I found the AC to really shine with single coil pickups but I could be biased as I prefer single coils. to me when using a tube screamer it sounds like an amp with a pedal on, using the AC booster sounds like you are adding a high dollar amp channel to your amp. The unit was tested with a Fender 4x10 Deville, Reverend Kingsnake, Peavey JSX head and Line 6 Flextone 3 2x12. It performed wonderfully with all amps except the JSX. The AC is not geared towards a hard rock/metal sound but is the perfect lead tone for playing blues, classic and current rock.
The RC booster could be one of the best sounding clean boosts we have heard and without a doubt the most versatile.The key to making it work with different guitars and amps is having the Bass and Treble controls on board. This makes it almost impossible to NOT be able to dial it in for your situation. If you are really digging your current tone now, play with an RC on top of it for 30 minutes and then turn it off!! Youll see. Maybe Prosound could call it the RC Challenge and have blindfolds and.......ehh sorry back on track here. It adds a great presence to your tone and just makes it sound better without changing the character of your tone.Talking to other RC users it seems like most folks use it as a leave on all the time pedal. Alot of clean boosts on the market do not have the EQ controls that the RC has and the RC has the upper leg on them because of this. Is your amp shy of the bass you would like to hear from it? Have no fear RC is here. The bass can be dialed in. Using the RC to boost other pedals yielded equally awesome results, it just makes things sound better and actually more versatile being able to dial in/out bass and treble. The RC can add a little gain especially if you amp is on the verge of breaking up to start with but it sounds like more of what you started with rather than a different color of drive on top. Another great pedal from Prosound.
Looking inside these 2, the AC and RC boosts are extremely well built and look like they were designed for years of use. The bypass switch is not a commonly used switch in effects but we were assured from Prosound that the RC and AC were designed to use these, are made to last and with Prosound standing behind them it is a non issue for me.
Running the RC pushing the AC creates an amazing tone and even using the RC to kick in just for leads over the AC is equally stunning. And quess what? It works equally as well the other way around! The EQ options and tones from these 2 pedals are enough once most folks play to pick them up and never look back.