Bogen GS150 Specsheet

• 4 dedicated MIC inputs

• 1 selectable MIC/TEL input

• 1 selectable MIC/AUX input

• 1 dedicated AUX input

• 4-ohm direct coupled output

• 8-ohm, 25V, 25VCT, and 70V transformer­coupled outputs

• Rack mountable – 2RU package

• Dual-function, 10-band graphic equalizer
(Acoustic EQ or Feedback Control modes)

• True loudness contour function

• Audio Enhancement circuit for improved
intelligibility

• Switchable phantom power supply (15V DC)

• Variable AUX input muting

• Remote master volume control capability

• Automatic level control

• Input muting via contact on all inputs

• Voice activated AUX muting on TEL input

• AUX fade back after TEL page

• Pre-amp Out/Power amp In (insert) connections

• Booster amp output connection

• Tape output connection

• Balanced line driver output
(using WMT1A accessory)

• Low-cut filter for MIC channels

• Listed to UL Standard 60065 for U.S. and Canada

• Tamper-resistant front cover available (GSTRC)

• Rack mounting kit available (GSRPK)

• Remote volume control available (GSRVC)

• Also available – GS250 (250 watts)

The Gold Seal Series amplifiers are designed to meet the rigorous requirements of todayʼs sophisticated sound
systems. They combine unique and useable features with ultra high reliability and professional performance.

The amplifiers are available in 35, 60, 100 and 150 watt models, each with exactly the same features to provide
power and performance no matter how large or small the application.

The Bogen Gold Seal Series amplifiers are an extraordinary addition to Bogen's line of quality audio amplifiers.
Designed with the sound contractor in mind, they provide unparalleled flexibility and versatility, without the need
for add-on modules.

In addition to its extensive flexibility, the Gold Seal Series amplifiers offer a combination of features not found in
other commercial amplifiers.

Features

Description

Gold Seal Series

Public Address

Amplifiers

Models GS35, GS60,

GS100 & GS150

Specifications subject to change without notice.

© 1998 Bogen Communications, Inc.

54-7874-02E 1102

Power Rating (RMS): GS35: 35 watts; GS60: 60 watts; GS100: 100 watts; GS150: 150 watts

Frequency Response:

Transformer Output — 65 Hz to 20 kHz, +0/-2 dB @ -2 dB

Direct Output — 20 Hz to 20 kHz, +0/-1 dB @ rated power

Distortion:

Transformer Output — 0.5% (max.), 0.3% (typ.), 65 Hz to 20 kHz @ -2 dB

Direct Output — 0.5% (max.), 0.3% (typ.), 20 Hz to 20 kHz

Signal-to-Noise Ratio: Fundamental: -94 dB or better; AUX 1 & 2: -70 dB; Tel: -70 dB or better @ 600 ohms

MIC 1 through MIC 6: -60 dB or better @ 200 ohms

Inputs/Outputs: MIC: 6 Lo-Z balanced via 4 XLR connectors and 2 screw terminals;

Sensitivity: 0.35 mV (200 ohms)
AUX: 2 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: 687 mV @ Rated Output via RCA jack

Output Impedance: All models: balanced or unbalanced 8-ohms, 25V, 25VCT, 70V, 4-ohm direct
Output Regulation: Better than 2 dB from no load to full load

AC Input Voltage: 120V AC

AC Current: GS35: 0.9A; GS60: 1.3A; GS100: 2.2A; GS150: 3.0A

Thermal Emissions (Full Power): GS35: 122.9 BTU/hr.; GS60: 283.5 BTU/hr.; GS100: 365.4 BTU/hr.; GS150: 642.1 BTU/hr.

Variable Mute Range: 0 dB to -30 dB (AUX 1 & 2)

ALC: Distortion: less than 0.5%; Compression: 25 dB

VOX Threshold: Input 20 mV (VOX control max. CW position)

MIC Precedence: Via terminal strip. -60 dB: MIC 1, 2, 3, 5/TEL, 6/AUX, AUX 2

Power In/Pre Out: In 1V/Out 1V via RCA jacks

Loudness Contour: +8 dB @ 100 Hz, +4 dB @ 10 kHz (AUX 1 & 2 control at 1/4 CW position)

Overload Protection: Electronic with automatic reset

Thermal Protection: Thermistor attached to heat sink

Line Fusing: Resettable circuit breaker
Dimensions: 16-1/2" W x 3-1/2" H x 12" D All Models

Product Weight: GS35: 17 lb.; GS60: 20 lb.; GS100: 23 lb.; GS150: 29 lb.

Technical

Specifications

Architect

& Engineer

Specifications

The amplifier shall be a model _____, rated at ____ watts RMS
(insert GS35/35 watts, GS60/60 watts, GS100/100 watts or
GS150/150 watts).

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 telephone line; MIC
6 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 connectors 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 equalizer. The

equalize

r 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 125Hz to 8 kHz in feedback control mode.

The amplifier shall include automatic level control to provide
consistent output regardless of who is paging, automatic muting
complete with a VOX circuit, and a variable mute level.
Provisions shall also be included for remote volume control,
using an accessory control unit (GSRVC).

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 Preamp 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 (GSRPK). It shall carry the necessary safety agency
listings for both the US and Canada.

50 Spring Street, Ramsey, New Jersey 07446, U.S.A.

Tel. [phone] • Fax: [phone]

www.bogen.com