GS-250 BOGEN COMMUNICATIONS, GS-250 Datasheet - Page 2

• Manufacturer Part Number: GS-250
• Description: Amplifier, Gs Series
• Manufacturer: BOGEN COMMUNICATIONS

Specifications of GS-250

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Specifications
Specifications
and Engineer
Architect
Technical
Dual Sound EQ (10 band ±12 dB):
Thermal Emissions (Full Power):
Operating Temperature Range:
The amplifier shall be a model GS250, rated at 250 watts
RMS, with three-speed fan cooling.
The amplifier shall accommodate up to 6 Lo-Z balanced
microphones, 2 Hi-Z auxiliary sources and a telephone
paging input (MIC 5 shall be switch-selected for MIC or
TEL; MIC 6 shall be switch-selected for MIC or AUX 1).
MIC 1 through 4 shall use XLR-type connectors; AUX
inputs shall be via RCA phono jacks and all other connec-
tors shall use screw terminals. Phantom power shall be
supplied for use with condenser microphones. Microphone
precedence connections shall be included for MIC 1, 2, 3,
5/TEL, 6/AUX 1, and AUX 2.
The amplifier shall provide a frequency response from 20
Hz to 20 kHz +0/-1 dB at rated power. Distortion shall be
0.3% typically, from 20 Hz to 20 kHz direct @ rated power,
and from 65 Hz to 20 kHz transformer @ -2 dB.
The amplifier shall include an Audio Enhancement circuit,
variable loudness contour control, and dual-function equal-
izer. The equalizer shall be switch-selectable for feedback
control or acoustic shaping and shall include 10 center-
detent slide controls providing ±12 dB of boost or cut
from 62.5 Hz to 16 kHz in acoustic mode and from 125
Signal-to-Noise Ratio:
Variable Mute Range:
Overload Protection:
Audio Enhancement:
Power Consumption:
Power Rating (RMS):
Thermal Protection:
Frequency Response
Output Impedance:
Output Regulation:
Loudness Contour:
AC Input Voltage:
MIC Precedence:
Transformer Output:
Product Weight:
VOX Threshold:
Inputs/Outputs:
AC Current:
Dimensions:
Line Fusing:
Distortion
Transformer:
Direct:
Direct:
ALC:
250 watts
65 Hz to 20 kHz, +0/-2dB @ -2 dB
20 Hz to 20 kHz, +0/-1dB @ rated power
0.5% (max.), 0.3% (typ.), 20 Hz to 20 kHz
0.5% (max.), 0.3% (typ.), 65 Hz to 20 kHz @ -2 dB
Fundamental: -94 dB or better; AUX 1 & 2: -70 dB; TEL: -70 dB or better @ 600 ohms;
MIC 1 to 6: -60 dB or better @ 200 ohms
6 MIC: Lo-Z balanced via 4 XLR connectors and 2 screw terminals;
Sensitivity: 0.35mV (200 ohms)
2 AUX: Hi-Z RCA jacks; Sensitivity: 0.085V (10k ohms)
Telephone: Screw terminals; Sensitivity: 0.07V (600 ohms)
Output to Power Amp: 5V @ Rated Output via RCA jack
Power In/Pre Out: In 1V/Out 1V via RCA jacks
WMT1A Output: 25V @ Rated Output via RCA jack
Tape Output: 687mV @ Rated Output via RCA jack
Acoustic Mode - 62.5 Hz, 125, 250, 500, 1 kHz, 2, 4, 8, 12, 16
Feedback Mode - 125 Hz, 200, 315, 500, 800, 1.2 kHz, 2, 3.1, 5, 8
All models: balanced or unbalanced 8-ohm, 25V, 25VCT, 70V, 4-ohm direct
Better than 2 dB from no load to full load
4 steps: -60, -21, -10, 0 dB (AUX 1 & 2)
Distortion: less than 0.5%; Compression: 25 dB (TEL)
TEL Input: 20mV (VOX control max. CW position)
Via terminal strip. -60 dB: MIC 1, 2, 3, 5/TEL 6/AUX 1, AUX 2
+8 dB @ 100 Hz, +4 dB @ 10 kHz (AUX 1 & 2 control at 1/4 CW position)
Type A9
Electronic with automatic reset
105°C (220°F) thermistor attached to heat sink
-10°C (14°F) to 60°C (140°F)
847 BTU/hr.
7A/125V AC Slo-Blo
120V AC
5.0A
480 watts, 120V AC, 60 Hz
16-1/2" W x 3-1/2" H x 13-1/2" D
30 lb.
Hz to 8 kHz in feedback control mode.
The amplifier’s TEL input shall include automatic level con-
trol to provide consistent output regardless of who is pag-
ing, and a four-step VOX-activated AUX mute level.
Provisions shall also be included for remote volume con-
trol, using an accessory control unit.
Outputs shall be provided for 4- and 8-ohm speakers and
for 25V, 25VCT, and 70V distributed systems. Additional
outputs shall be provided to feed a booster amp and tape
recorder. A dedicated output shall permit feeding a 600-
ohm telephone line using an accessory transformer (Model
WMT1A). A Pre-amp out/power amp in circuit shall be
provided to insert signal processing equipment.
The amplifier shall be rack mountable using an accessory
rack panel kit.
50 Spring Street, Ramsey, New Jersey 07446, U.S.A.
Tel. [phone] • FAX: [phone]
www.bogen.com