Classic, Guitar Amplifier, Specifications

Classic® 50

POWER AMPLIFIER SECTION

Four 6BQ5/EL84’s with 12AX7 driver

Rated Power & Load:

50 W RMS into 16 or 8 ohms

Power @ Clipping (Typically): (5% THD, 1 kHz, 120 V AC line) 50 W RMS into 16 or 8 ohms (Bias must be reduced to measure)

Frequency Response:

+0, -2 dB, 50 Hz to 15 kHz, @ 40 W RMS into 16 ohms

Hum & Noise:

No greater than 80 dB below rated power

Power Consumption:

200 watts, 50/60 Hz, 120 VAC (Domestic)

PREAMP SECTION

Two 12AX7’s

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

Pre & Post (lead) @ 0 Reverb Level @ 0 Bass & Treble EQ @ 12 Middle EQ @ 0 Master Volume @ 12 Presence @ 6

Nominal level is with Input Gain @ 6. Minimum level is with Input Gain @ 12.

Preamp Normal Input:

Impedance: Very high Z, 470 K ohms

Lead Channel (Post Gain @ 10):

Nominal Input Level:

-40 dBV, 10 mV RMS Minimum Input Level: -70 dBV, 0.3 mV RMS

PREAMP SECTION, continued

Normal Channel:

Nominal Input Level:

-17 dBV, 140 mV RMS Minimum Input Level: -28 dBV, 40 mV RMS Maximum Input Level:

0 dBV, 1.0 V RMS

Preamp Bright Input:

Impedance: Very high Z, 470 K ohms +12 dB boost @ 2 kHz

Equalization:

(Lead and Normal Channels)

Custom bass, middle, and treble passive-type EQ

Effects Send:

Load Impedance: 1 K ohm or greater

Nominal Output Level: -6 dBV, 0.5 V RMS

Effects Return:

Impedance: High Z, 2 M ohms

Designed Input Level: -6 dBV, 0.5 V RMS (Switching jack provides Effects Send to Effects Return connection when not used.)

External Footswitch Function:

Reverb Defeat (when reverb control is raised) Normal/Lead Channel Select (when Lead activated)