10
SYSTEM SPECIFICATIONS:
Mains Fuse = 8 amps
Mains Voltage = 120 VAC 60 Hz
Power Consumption = 350 watts
Hum and noise: Typically greater than -89 dB unweighted with
controls set as follows…
Pad = Passive
Bright = Normal
Pre gain = 5
Contour = 0
Low = 0
Mid = 0
Mid Shift = 1kHz
High = 0
Volume = 5
POWER AMPLIFIER SECTION:
PROTECTION:
Electronic current limit protection circuit.
Thermal protection circuit.
D.C. crowbar protection circuit.
DDT speaker protection circuit with defeat switch.
Variable speed fan, thermally controlled
GENERAL INFORMATION:
Minimum load = 2 ohms
Input sensitivity: 1.0 VRMS
Two 1/4" speaker jacks in parallel
RATED POWER OUTPUT:
450 watts (30.00 V RMS) into 2 ohms
300 watts (34.64 V RMS) into 4 ohms
170 watts (36.88 V RMS) into 8 ohms
TYPICAL POWER OUTPUT
475 watts (30.82 V RMS) into 2 ohms
with no more than 1% THD+N
308 watts (35.10 V RMS) into 4 ohms
with no more than 1% THD+N
177 watts (37.63 V RMS) into 8 ohms
with no more than 1% THD+N
NOISE:
Typically greater than 102 dB below full power @
8 ohms unweighted
DDT Dynamic Range:
Typically greater than +15 dB
FREQUENCY RESPONSE:
+0/-0.61 dB, 100mW to 160 W RMS, 20 Hz to 20 kHz
(8 ohm load, typically below 0.2% THD+N)
PREAMPLIFIER SECTION:
SETTINGS FOR MEASUREMENTS UNLESS
OTHERWISE NOTED:
Pad = out (Passive)
Bright = out (Normal)
Pre-Gain = 5 (12 o’clock)
Contour = 0 (fully counterclockwise)
Bass = 0 (12 o’clock)
Mid = 0 (12 o’clock)
Mid Shift = 0 (12 o’clock)
High = 0 (12 o’clock)
Master Volume = 10 (fully Clockwise)
Line Out Level = 10 (fully Clockwise)
INPUT SENSITIVITY (Level to achieve full power):
With Pad Out...
Nominal input: 100 mV RMS
Minimum input: 9 mV(pre gain and master fully CW)
Maximum input: 3.0 V(maximum signal at input before
clipping occurs)
With Pad -10 dB in:
Nominal input: 315 mV RMS
Minimum input: 28 mV (pre gain and master fully CW)
Maximum input: 9 V (maximum signal at input before
clipping occurs)
EQUALIZATION:
Bright boost: + 8 dB @ 5 kHz
Contour: Special frequency compensation
Bass: ± 15 dB @ 30 Hz, Shelving type Eq
Mid : ± 15 dB @ 200 @ 2 kHz (Mid shift control determines
center frequency)
Mid Shift: 200 to 2 kHz
High: ±15 dB @ 8 kHz, Shelving type Eq
TUNER SEND:
Instrument level through a buffer
LINE OUT:
-∞ to -10 dB (for nominal input).
Level is dependent on level control setting and pre gain setting
EFFECTS LOOP:
Set for -10 dB (0.315 V RMS) with pre @ 5, Master @ 10
Controlled via footswitch, ground tip to defeat.
PREAMP OUTPUT:
1 V RMS nominal
NITROBASS
™
SPECIFICATIONS
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