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Seymour Duncan Twin Tube Mayhem SFX-04
High-quality guitar preamp with built in boost

Seymour Duncan SFX-04 Twin Tube Mayhem

Application

High-quality guitar preamp with built in boost. Uses a duet of premium, mil-spec, subminiature, USA-made Phillips-Sylvania 62051 pentode tubes. Great for old school metal, new metal, thrash, death and doom.

Description

The high plate voltage and 100% vacuum tube signal path allow the tubes to operate at their fullest potential and provide maximum dynamic range. Additional gain is achieved with a high voltage, low noise, discrete Class A input stage. The solid state input stage increases the resistance of the stomp-box to microphonics. The result is maximum dynamic range, the most gain, and the heaviest tone your expect from a great tube preamp voiced for metal. Also features user-selectable 4dB or 8dB boost for pre-setting rhythm and lead levels. True bypass. Fully encapsulated toroidal transformer for quiet operation. Heavy duty steel chassis.

$229.95
Includes UPS Ground Shipping
in Continental U.S.

Temporarily out of stock

Specifications

Gain

  • Before Level Compensation – 97 dB
  • After Level Compensation – 71 dB

*Gain measured at 1 KHz

Nominal Output Level – 0.25 Vrms (-10dBu)

*Nom. Output level measured with 100mV 1 KHz input signal and all controls set to 12 o'clock

Max. output level before clipping – 5 Vrms (16dBu)

*Max. output measured with gain set at 50% and all other controls set full up and boost footswitch set to 8dB

Input Impedance: 100KOhm

THD @ 100mV RMS output – .5%

Noise @ Output – 4mV (< 3dB hum content)

Boost Footswitch Gain

  • Two selectable boosts, 4dB and 8dB. No effect on tone, just increased level.

Active Equalization Section:

  • Bass Control: 126 Hz, Q = 1.5, Gain = +/-12dB
  • Midrange Control: 596 Hz / 1389 Hz, Q = 1.5, Gain = +/-12dB
  • Treble Control: 2.93 KHz, Q = 1.4, Gain = +/-12dB

Power Consumption – 11W

External Dimensions – 7.50°± X 6.62°± X 1.96°± (190mm X 168mm X 50mm)

Weight – 3.15 lbs. (1.43KG)

Click here for manual

$229.95
Includes UPS Ground Shipping
in Continental U.S.

Temporarily out of stock

e-mail Steve

Questions? Call or e-mail steve@stevesmusiccenter.com. Prices quoted are subject to change. Quantities may be limited on some items. If you plan to order more than one of this item, please contact us before ordering to verify availability. Click HERE for Return Policy.

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