Peavey Ultra Plus manual Power Amplifier Section, Preamp Section

SPECIFICATIONS

POWER AMPLIFIER SECTION

Four 6L6GCs with 12AX7 driver

Rated Power & Load:

120 W RMS into 16, 8, or 4 ohms

Power @ Clipping:

(typically @ 5% THD, 1 kHz, 120 VAC line) 130 W RMS into 16, 8, or 4 ohms

(Bias must be reduced to measure)

Frequency Response:

+0, -2 dB 50 Hz to 20 kHz @ 100 W RMS into 8 ohms

Hum 81 Noise:

Greater than 76 dB below rated power

Power Consumption:

Domestic: 400 W, 50/60 Hz, 120 V AC

Export: 400 W, 60 Hz, 220-230/240 V AC

Dimensions & Weight:

11 .O” (H) x 26.5” (W) x 11 .O” (D) 50.1 Ibs.

PREAMP SECTION

Three 12AX7s

The following specs are measured @ 1 kHz with the controls preset as follows:

Low & High EQ @ 10, Mid EQ @ 0 Bright out

Ultra & Crunch Posts @ IO Gain switches out

Bottom, Body, & Edge @ 0 dB Reverb level @ 0

Master level @ 10

(Nominal levels are with Pre Gain @ 5. Minimum levels are with Pre Gain @ 10.)

Preamp High Gain Input:

Impedance: Very High-Z, 470 K ohm

Ultra Channel: (with Channel Select in) Nominal Input Level: -46 dBV, 5 mV RMS Minimum Input Level: -64 dBV, 0.6 mV RMS (subtract 15 dB with Gain switch in)

Crunch Channel: (Footswitch selectecI1 Nominal Input Level: -34 dBV, 20 mV RMS Minimum Input Level: -52 dBV, 2.5 mV RMS (subtract 15 dB with Gain switch in)

Clean Channel: (with Channel Select out! Nominal Input Level: -16 dBV, 150 mV RMS Minimum Input Level: -34 dBV, 20 mV RMS Maximum Input Level: 0 dBV, 1 .O mV RMS

Preamp Low Gain Input: (-6 dB Pad)

Impedance: High-Z, 44 K ohms (all levels are increased by +6 dB)

Effects Send:

Load Impedance: 47 K ohms or greater

Nominal Output: -10 dBV, 300 mV RMS

Effects Return:

Impedance: Very High-Z, 470 K ohms

Designed Level: -10 dBV, 300 mV RMS

Preamp Output:

Load Impedance: 47 K ohms or greater

Nominal Output: +I0 dBV, 3 V RMS

Remote Footswitch:

Special 3-button unit with LED indicators (supplied)

System Hum & Noise @ Nominal Level:

(Clean channel - 20 Hz to 20 kHz unweighted) Greater than 74 dB below rated power (Special noise gate circuitry for Ultra & Crunch)

Equalization: (clean channel on/y)

Custom Low, Mid, & High passive type EQ Push Bright: +6 dB @ 2 kHz

Voicing: (U/tra & Crunch channels only)

Active Bottom, Body, & Edge EQ

Push Gain: Increases gain in Ultra & Crunch channels