Back to navigation


The 2-channel Dirty Shirley Rockers Have Been Waiting For





This article was


Written By





Our Product Research Team





Get to know them!





Ranging from smooth cleans to Friedman’s famous high-gain tones, the Friedman Twin Sister 40-watt tube combo amplifier delivers world-class performance based on the legendary JTM 45. If that sounds familiar, that's because the Twin Sister is essentially a two-channel version of their acclaimed Dirty Shirley tube amp. Whether you’re looking for clean, crunch, or molten leads, you’ll be able to dial it in. Crank up the preamp gain for modern lead tones, or back off the gain and crank the master for the explosive sound of raging 5881 power tubes. Each of the Twin Sister’s channels offers a Bright switch and three-way Gain switch that are incredibly useful for fine-tuning the amp's response for any type of pickups. Loaded with a beefy-sounding Celestion Redback G12H-150 speaker, you'll appreciate the Friedman Twin Sister’s versatility whether on stage or in the studio.





Related Videos: Twin Sister 40-watt 2-channel 1x12" Tube Combo Amp


An all-tube rock ’n’ roll machine





With 40 watts of all-tube power, the Friedman Twin Sister guitar combo amplifier gives you killer classic rock tones. Ranging from shimmering cleans to slightly overdriven tones to pushed lead tones a la Zep and ZZ Top, this rock ’n’ roll powerhouse has the tones you’re looking for. A 3-position switch lowers your overall gain structure ? the highest setting delivers the Dirty Shirley’s original sound while the lower two yield phenomenal vintage-tinged tones. A duo of 5881 power tubes ? a favorite among Sweetwater guitarists ? delivers a punchy and touch responsive sound that guitar players long for. When you’re rocking out and need to clean up your tone just roll back your guitar’s volume and keep playing.





Handbuilt for exceptional tone





All Friedman Amplification products are handwired to exacting specs to give you amazing tones every time you play. Premium components and attention to detail ensure that your Twin Sister combo amp will deliver the sound you want and need onstage or in the studio. It doesn’t matter what type of music you’re into; a premium, handbuilt Friedman amp has the tonal palette you need to create the sound you’re after.





Dave Friedman: amp guru to the pros





For over 25 years, Dave Friedman has been tweaking, building, and repairing amps for some of the biggest names in music. His legendary reputation among touring musicians has gained him a loyal clientele including the likes of Eddie Van Halen, Steve Stevens, Jerry Cantrell, and more. Dave has created his own production amp line utilizing his sought-after skills and talents. Now you can get the same legendary amp tones as the pros with the Friedman Twin Sister.





Friedman Amplification Twin Sister Guitar Combo Amplifier Features:


40-watt, 2-channel all-tube amplifier with British voicing


12-inch Celestion Redback G12H-150 speaker delivers powerful lows, detailed mids, and smooth highs


Footswitch included for channel switching


Bright switch and 3-position gain switch per channel, helpful for fine-tuning the amp’s response for any guitar or pickups


An ideal amp for rock


Powered by dual 5881 power tubes


Powerful tone-shaping potential with per-channel 3-band EQ


Handwired amplifier built using premium components including custom transformers and capacitors


Dual speaker outputs let you use up to 2 speaker cabs, with switchable 4-, 8-, or 16-ohm operation


Ultra-transparent series effects loop for your favorite pedals (located on back panel near the speaker jack)