WORKING CONDITION: Very Good. All Controls and Dip Switches work properly, and the unit sounds good and aggressive with a great deal of gain.

PHYSICAL CONDITION: Very Good. The metal chassis and rack ears are solid, albeit a little bent on the right side, but all of the jacks, knobs, and buttons are in very good condition.

INVENTORY #58854

BRAND: JHD Audio

MODEL: UTP-1

FUNCTION: Rackmount Guitar Preamp

PRODUCT DESCRIPTION: This listing is for a JHD Audio UTP 1 Rackmount Guitar Preamp.

 The JHD Audio UTP-1 is a rare, vintage tube guitar preamplifier from the 1980s, designed for 1U 19-inch rackmount systems. It is known for its hybrid design, combining multiple solid-state gain stages with vacuum tubes to deliver a tonal range from clean boost to breakup.

SPECS:

• The UTP1 is characterized by its extensive control over gain and EQ through a unique dip-switch system.
• Tube Configuration: Typically utilizes two 12AX7 tubes (or variants like the 7025) to provide dual gain stages.
• EQ and Gain Control: Features 10 dip switches on the front panel; nine of these control three-stage gain levels and EQ, while the tenth acts as a high-cut filter.
• Hybrid Design: Includes three op-amp stages that are fine-tuned by small potentiometers and the dip-switch array, followed by a final tube preamp stage.
• Output Controls: Equipped with standard Gain and Master volume controls to manage output levels.

ACCESSORIES INCLUDED: This item comes as seen in photos and includes its original JHD owner's manual.

UNPACKAGED WEIGHT: 5 lbs.

UNPACKAGED DIMENSIONS: 19" x 2" x 9"