INSTRUCTION MANUAL
Congratulations on purchasing this incredible new guitar amplifier designed by one of the most well known amp modders and designers in the LA Music scene for the past 20 years, Dave Friedman. Dave Friedman’s Dirty Shirley 40 Watt Head was designed for guitarists that want a Vintage Classic Rock tone inspired by British tube amps from the 60’s and 70’s. And what’s better than one Dirty Shirley? TWO DIRTY SHIRLEYS! Introducing the Twin Sister.
INSTRUCTIONS Please keep this instruction manual for future reference and for the duration of owning this Friedman Amplifier. Please carefully read and understand the instructions inside this user’s manual before attempting to operate your new amp. This instruction manual includes essential safety information regarding the use and maintenance of the amplifier. Take special care to heed all warning symbols and signs inside this manual and those printed on the amplifier itself.
A. The power-supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the amplifier; or C. The amplifier has been exposed to rain; or D. The amplifier does not appear to operate normally or exhibits a marked change in performance; or E. The amplifier has been dropped, or the enclosure damaged. F. The amplifier needs tube replacement or biasing 14.
FRONT PANEL POWER SWITCH: Turn this ON to power the amplifier. Wait for about one minute before taking the amp OUT of STANDBY playing for maximum tube life. There is an indicator lamp to provide a gentle reminder to let you know your amp is ON. STANDBY SWITCH: Turn ON this switch to put the amp in play mode. Wait a minute before turning this on for maximum tube life. PRESENCE CONTROL: (Global) This adds or takes away upper mids and highs. Start at about 5 and adjust to taste.
REAR PANEL SEND JACK: This is where you plug the INPUT of your Effect(s). Use a high quality shielded guitar cable. RETURN JACK: This is where you plug the OUT of your Effect(s). Use a high quality shielded guitar cable. SPEAKER OUT JACKS (2): Plug in your speaker cab(s) here. Use Speaker cable ONLY. IMPEDANCE SELECTOR SWITCH: Select the correct speaker cab impedance with this selector switch. MAIN FUSE: This fuse is in the compartment found below the AC receptacle.
FRIEDMAN LIMITED LIFETIME WARRANTY Thank you for choosing Friedman. Friedman manufactures some of the world’s most reliable hand-wired, all-tube amplifiers and speaker cabinets. Friedman takes great pride in an extremely thorough testing procedure, which is implemented on each product prior to shipment. In the unlikely event that you have a problem with you amplifier, please refer to warranty below.
If Friedman determines that the unit was defective in materials or workmanship at any time during the warranty period, Friedman has the option of repairing or replacing the product at no additional charge, except as set forth below. • All replaced parts become a property of Friedman. Products replaced or repaired under this warranty will be returned via ground shipping within the United States or Canada - freight prepaid.
