Peavey manual KB/A 30 Specifications, Power Amplifier Section

KB/A™ 30 SPECIFICATIONS

PREAMP SECTION

The following preamp specs are measured at 1 kHz with the master EQ set flat at 0 dB, all gain switches in the out position, nominal signal levels are with channel level controls set at five. Minimum levels are with channel level controls set at 10.

CHANNEL ONE INPUTS

Low-Z Input Impedance: 5k ohms

Nominal input Level: -30 dBV, 32 mV RMS

Minimum input Level: -40 dBV, 10 mV RMS

High-Z Input Impedance: 5k ohms

Nominal input level: -30 dBV, 32 mV RMS

Minimum input level: -40 dBV, 10 mV RMS

CHANNEL TWO and CHANNEL THREE INPUTS Input impedance: 22k ohms

Nominal input level: -21 dBV, 90 mV RMS

Minimum input level: -40 dBV, 10 mV RMS

CHANNEL FOUR INPUT

Input impedance: 10k ohms

Nominal input level: 0 dBV, 1 V RMS

Minimum input level: -25 dBV, 56 mV RMS

EFFECTS PATCH : (STEREO JACK TIP)

Function: Low level effects send

Load impedance: 1k ohms or greater

Nominal output: -10 dBV, 316 mV RMS

PRE EQ PATCH: (STEREO JACK RING)

Function: Low level effects return

Impedance: High-Z, 10k ohms

Input level: -10 dBV, 316 mV RMS

(Switching stereo jack provides patch output to patch input connection when not used.)

LINE OUTPUT:

Function: High level signal send

Load impedance: 100 ohms or greater

Nominal output: -6 dBV, 0.5V RMS

Maximum output: 18 dBV, 8V RMS (XLR pin 2 positive/pin 3 negative)

HEADPHONE OUTPUT: (STEREO JACK)

Load impedance: 8 ohms or greater

Nominal output: 100 mW

(Switching jack will disconnect internal speaker when headphone plug is inserted.)

The following specs measured at nominal setting, all phone jack inputs terminated with 47k ohms.

FREQUENCY RESPONSE

(Channel input/preamp output at 1 V RMS level) +0, -3 dB, 20 Hz to 20 kHz

PREAMP DISTORTION

(Channel in/preamp out, 20 Hz to 20 kHz at 1 V RMS)

Less than .05% THD, typically below .01%

PREAMP HUM AND NOISE

Greater than -95 dBV

CHANNEL EQUALIZATION

±15 dB at 80 Hz and 10 kHz, shelving

POWER AMPLIFIER SECTION

POWER AT CLIPPING (TYPICALLY)

40 W RMS into 8 ohms/low channel

10 W RMS into 8 ohms/high channel (Both channels driven, 5% THD, 3.5 kHz, 120 V AC Line)

TOTAL HARMONIC DISTORTION Less than 0.3%, 30 W RMS/low channel into 8 ohms, 50 Hz to 2 kHz Less than 0.3%, 7 W RMS/high channel into 8 ohms, 5 kHz to 20 kHz (Typically below 0.2%)

FREQUENCY RESPONSE

+0,-1 dB, @ 30 W RMS/low channel into 8 ohms, 50 Hz to 2 kHz

+0,-1 dB, @ 7 W RMS/high channel into 8 ohms, 5 kHz to 20 kHz

HUM and NOISE

Greater than 90 dB below rated power

POWER CONSUMPTION (DOMESTIC) 100 W at 120 V AC, 50/60 Hz

CROSSOVER

Fixed, 18 dB/octave, 3.5 kHz crossover frequency

ALL SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.

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