Synergy preamp modules are unique little 'tone pods' used to tap into your favourite amp sounds. Slide a preamp into your Synergy hardware of choice; either the classic amp, desktop or rackmount configurations and dial in the legendary valve characteristics squeezed into the module.

Every Synergy preamp module contains two classic amp channels powered by two 12AX7 tubes. Installation is extremely simple and does not require any amp building knowledge. All that's left is to let your imagination run wild in your quest for great guitar tone. Collect more modules to expand your tonal possibilities.

Here's what Synergy say about the Friedman DS Preamp Module:

Dave Friedman is the man behind some of the most impressive tones in rock 'n' roll, and has been for over 25 years. Throughout that time, luminary players such as Jerry Cantrell and Steve Stevens have been relying on Friedman's amplifier modifications, repairs, and builds to keep them sounding at the top of their game.

A centerpiece of the Friedman Amplification lineup, the Dirty Shirley effortlessly blends the old-school rock tones of late '60s England with the focused and clear high-gain tones that define the Friedman Empire. This single-channel tube amp sets the standard for touch sensitivity, cleaning up beautifully as you lighten up your pick attack or roll back your guitar's volume.

Dave Friedman-designed

If you're a modern-style player who demands a classic rock tone, dripping with juicy harmonics, you'll want to plug into the Synergy Friedman DS preamp. While some preamps seek to emulate or model a particular amplifier's tone, the DS has been carefully designed by none other than Dave Friedman to nail the exact tone and feel of his Dirty Shirley amps.

In fact, the DS module's two 12AX7-powered channels offer even more versatility than Friedman's original tube head. Dial one channel in with a bit of grit while the other is driven into a luscious lead tone, and it's like having two Dirty Shirleys at your beck and call. Install the Synergy Friedman DS Preamp and dive into Dave Friedman's take on the ideal vintage guitar tone.

Cathode Select Switch

The Friedman DS module includes a three position switch which allows you to configure the input tube bass response to match the original circuit of the selected module Patent Pending. Switch setting will will affect the feel and tightness. Each amp designer has a specific combination of components that makes up their input tube circuit. We have selected the three most popular combinations which you can access with this switch.

You can experiment and try any of the positions to see what you prefer. The Friedman DS module will come preset to Dave Friedman's preferred setting which is switch position 2 (2.7K resistor and .68uf capacitor).

Start your own classic valve amp collection: How do Synergy preamp modules work?

The Synergy 20IR amplifier has a slot which allows you to quickly and easily swap Synergy preamp modules making it the most flexible, convenient, and tonally versatile all-tube amplifier head. Combining the SYN-20IR's built-in vintage American-style clean channel, with any of the Synergy modules of your choosing, you can create your dream amplifier, whilst still being able to easily switch it up thanks to Synergy's dynamic range of modules.

Synergy preamp modules are compact, all-tube guitar preamps that capture the sound of iconic amplifiers. The modules are designed to be used in modern guitar rigs, and are suitable for direct recording and lower stage volumes. Simply slot into the Synergy 20IR amplifier, or install it into a desktop or rackmount configuration. Collect more modules to expand your tonal possibilities!

Specifications

• 2 Preamp channel - Interchangeable design
• Gain, Bass, Mid, Treble, Volume controls
• Two 12AX7 preamp tubes
• Two Bright Switches
• Dimensions: 5.5"(L) x 7"(W) x 1.5"(H)
• Weight: 1 lbs.