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OWNER’S MANUAL 

 
 

Summary of Contents for Two-Rock Studio Pro 22

Page 1: ...OWNER S MANUAL ...

Page 2: ...ance with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers plugs and the point where they exit from the apparatus 9 Protect the power cord from being walked on or pinched particularly at plugs and the point where they exit from the apparatus 10 Only use attachments accessories specified by the manufacturer 11 Unplug this apparatus during light...

Page 3: ...ddition the response of the treble and mid range controls is greatly reduced In the full clockwise position low frequencies are allowed to pass to the gain stage When the knob is in the out position the low and low mid frequencies are boosted This is a low frequency contour switch changing the low and low mid response Push Pull not available in 22 watt version 5 Gain Adjusts the overall gain of th...

Page 4: ...h no effects connected so the level control acts as a master volume The pull bright feature is useful when playing at low volume a low fx control setting or when a large number of outboard effects are used in the loop which sometimes causes high frequency insertion loss 6 Effects Send Use this jack to send the amplifiers signal to outboard effects 7 Effects Return Use this jack to connect the outp...

Page 5: ...o our exacting specifications External bias adjustment and test points are located on the chassis near the output tube sockets A digital multi meter and small screwdriver are required for bias adjustment BIAS ADJUSTMENT PROCEDURE Power up unit and connect proper speaker load DO NOT have an instrument connected to the input during the biasing procedure Take unit off standby and allow a few seconds ...

Page 6: ...in milliamps Numbers given are for 2 or 4 tubes combined 6L6 and EL 34 type tubes 060V to 070V for 35watt and 50watt Factory Setting 064V 1200V to 1400V for 100watt Factory Setting 1260V 6V6 Installed in the 22watt versions only 044V to 058V Factory Setting 054V 6V6 Installed in 22watt versions with tremolo bias must not be set higher then 044V as it will cause tube failure Do not set bias higher ...

Page 7: ...y other questions or comments that you may have We look forward to hearing from you PHONE 1 707 584 TONE 8663 M F 9am 5pm PST FAX 1 707 584 8661 ADDRESS Two Rock 619 Martin Avenue Suite 6 Rohnert Park CA 94928 SERVICE service two rock com WEB www two rock com PRECAUTIONS DO NOT expose to rain or any other moisture DO NOT use cleaning solvents Wipe exterior with a clean dry cloth only Refer servici...

Page 8: ...This is a product of Premier Builders Guild 619 MARTIN AVENUE SUITE 6 ROHNERT PARK CA 94928 707 584 8663 www two rock com SERIAL NUMBER _____________________________ ...

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