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Due to our efforts for constant improvements,
features and specifications listed herein are subject to change without notice.
FIREBASS
™
700 SPECIFICATIONS
TM
®
POWER AMPLIFIER SECTION
Rated Power and Load:
700W RMS into 2 ohms
475W RMS into 4 ohms
275W RMS into 8 ohms
Power @ Clipping (Typically):
(1 kHz, 120 VAC line)
490W RMS into 4 ohms @
1% THD
550W RMS into 4 ohms @
5% THD
Frequency Response:
-1 dB, 20 Hz to 30 kHz @ 400W
RMS into 4 ohms
Total Harmonic Distortion:
Less than 0.25%, 100 mW to
450W RMS, 20 Hz to 10 kHz,
4 ohms (typically below 0.1%)
DDT
™
Dynamic Range:
Greater than 20 dB
DDT
™
Maximum THD:
Below 0.5% THD for 3 dB
overload
Below 1% THD for 13 dB
overload
Hum and Noise:
Greater than 90 dB below
rated power
Power Consumption:
1,200W @ 120 VAC 50/60 Hz
PREAMP SECTION:
The following specs are measured @
1 kHz with the Low, Mid & High EQ @
0 dB; Contour @ 0; Mid Shift @ 1 kHz;
Input Pad & Bright switch out (off);
Post Gain @ 10; Nominal levels are
with Pre Gain @ 5; Minimum levels are
with Pre Gain @ 10.
Passive Preamp Input (Input Pad
switch “out”):
Impedance:
High Z, 220k ohms
Nominal Input Level:
-27 dBV, 45 mV RMS
Minimum Input Level:
-48 dBV, 4 mV RMS
Maximum Input Level:
+10 dBV, 3V RMS
Active Preamp Input (Input Pad
switch “in”):
Impedance:
High Z, 68k ohms
Nominal Input Level:
-17 dBV, 135 mV RMS
Minimum Input Level:
-38 dBV, 12 mV RMS
Maximum Input Level:
+20 dBV, 10V RMS
Preamp Output:
Load Impedance:
1k ohms or greater
Nominal Output Level:
0 dBV, 1V RMS
Maximum Output Level:
+20 dBV, 10V RMS
Power Amp Input:
Impedance:
High Z, 22k ohms
Designed Input Level:
0 dBV, 1V RMS
(Switching jack providing preamp
output to power amp input connection
when not used)
System Hum and Noise @
Nominal Input Level:
(20 Hz to 20 kHz unweighted)
Greater than 75 dB below rated
power
Equalization:
Low and High:
+/-15 dB @ 40 Hz and 7 kHz,
shelving
Mid:
+/-15 dB @ Mid Shift setting
Mid Shift:
Variable from 200 Hz to 2 kHz
Contour:
Special EQ voicing
Push Bright:
+8 dB @ 8 kHz
Variable Crossover:
Frequency Range:
100 Hz to 1 kHz
Slope:
12 dB per octave
Crossover Low Output:
Load Impedance:
1k ohms or greater
Nominal Output Level:
0 dBV, 1V RMS
Maximum Output Level:
+20 dBV, 10V RMS
Crossover High Output:
Load Impedance:
1k ohms or greater
Nominal Output Level:
0 dBV, 1V RMS
Maximum Output Level:
+20 dBV, 10V RMS
Effects Loop:
Send Level:
-10 dBV, 315 mV RMS
Send Load Impedance:
1k ohms or greater
Return Level:
-10 dBV, 315 mV RMS
Return Input Impedance:
220k ohms
Tuner Send:
Level:
Buffered off the Input jack;
Dependent on instrument level
Load Impedance:
1k ohms or greater
Low Z Balanced Line Out:
(600 ohm transformer balanced;
Nominal levels with Pre Gain & Line
Out Level @ 5; Maximum levels with
Pre Gain & Line Out Level @ 10)
Nominal Pre-EQ Output Level:
-20 dBV, 100 mV RMS
Nominal Post-EQ Output Level:
-26 dBV, 50 mV RMS
Maximum Pre-EQ Output Level:
+20 dBV, 10V RMS
Maximum Post-EQ Output Level:
+10 dBV, 3V RMS
Weight:
50.9 lbs.
Dimensions: (W x H x D)
23.375" W x 8.250" H x 12.875" D