HTA250A Bogen Communications, Inc., HTA250A Datasheet - Page 2

• Manufacturer Part Number: HTA250A
• Description: Amplifier, Power; 250 W (RMS); 20 to 20000 Hz @ Full Rated Output; 90 dB
• Manufacturer: Bogen Communications, Inc.

Specifications of HTA250A

• Controls: Rear Panel Input Level Control
• Dimensions: 19 in. W x 11 in. D x 5-1⁄4 in. H
• Frequency Response: 20 to 20000 Hz @ Full Rated Output
• Hum And Noise: 90 dB
• Mounting Type: Rack Mount
• Power Consumption: 520 W @ 120 VAC, 60 Hz
• Power Output: 250 W (RMS)
• Protection: 7 A (Sio-Bio Fuse)
• Sensitivity: 500 mV (High Impedance), 150 mV (Low Impedance Balanced)
• Standards: UL Listed
• Weight, Shipping: 50 lbs.

and Engineers
Specifications
*This receptacle will be grounded only if the power amplifier has been grounded properly.
Specifications
Architects
Technical
The power amplifier shall be a Bogen Model HTA-250A
or approved equivalent solid-state amplifier incorpo-
rating state-of-the-art MOSFET power transistors.
Amplifiers utilizing conventional or bipolar power tran-
sistors shall not be acceptable.
The amplifier shall deliver an audio output of 250 watts
(rms continuous). Total harmonic distortion shall be
less than 0.5% at the 250-watt rating over the frequen-
cy range of 20 to 20,000Hz. The rated output shall be
obtained with an input that is not greater than 500mV
(rms). Hum and noise shall be at least 90dB below
rated output.The frequency response, when measured
at full rated output, shall be flat within ±1dB, 20 to
20,000Hz.
The amplifier shall provide either balanced or unbal-
anced constant-voltage outputs of 25 VCT and 70.7
volts, plus 4 and 8 ohm balanced or unbalanced out-
puts. Output regulation shall be within 2dB from no
load to full load.
The amplifier shall provide an input of 50,000 ohms
unbalanced high impedance, or 600 ohms balanced or
unbalanced low impedance, or line bridging with
optional accessory plug-in transformers. Overall gain
shall be adjustable by means of a single level control
located on the rear panel. An internal low-cut filter
(-10dB @ 100Hz) shall also be provided. The front of
the amplifier shall contain an illuminated on/off power
Dimensions (without removable feet):
Auxiliary Receptacle (not switched):
Operating Temperature Range:
Total Harmonic Distortion:
Front Panel Dimensions:
Controls & Indicators:
Power Requirements:
Rated Output Power:
Overload Protection:
Frequency Response:
Output Regulation:
Input Impedances:
Input Sensitivity:
Hum and Noise:
Low-Cut Filter:
Output Loads:
Accessories:
Weight:
Finish:
250 watts rms
Less than 0.5%, 20 - 20,000Hz
±1dB, 20 - 20,000Hz at full rated output
High impedance, 500mV; Low impedance balanced, with optional
90dB below rated output
4 ohms, 8 ohms, 25VCT (2.5 ohms), 70.7V (20 ohms)
Better than 2dB from no load to full load
Hi-Z, 50,000 ohms unbalanced; Lo-Z, 600 ohms, balanced or
unbalanced, and 1:1 bridging with optional plug-in transformers
-10dB @ 100Hz
Front panel illuminated power and shutdown LED indicators
Rear Panel Input level control, Slo-Blo fuse
Internal Low-Cut filter switch
120VAC, 60Hz, 520 watts @ Full Rated Output (Idle, 60W)
Electronic overload protection
Electrical 7A Slo-Blo Fuse
Thermal 105 C (220 F) Thermostat
-20°C (-4°F) to +49°C (+120°F) at rated output
Three-wire grounded*, 300 watts maximum
19”W x 11”D x 5-1/4”H (48.3 x 27.9 x 13.3 cm)
19”W x 5-1/4”H (48.3 x 13.3 cm)
Black
50 lbs. (22.7 kg)
Model TL-600, line-matching transformer; Model TL-100,
1:1 line-matching transformer
transformer, 150mV
switch. The amplifier shall incorporate electronic shut-
down circuitry which shall activate whenever an over-
load or short occurs on the output of the amplifier. A
front panel overload shutdown LED shall illuminate to
indicate the discontinuance of power output; the cir-
cuitry shall automatically restore power output once
the cause of the shutdown condition has been
removed.
The amplifier shall operate from a 120VAC, 60Hz
source and shall consume 60 watts or less at idle and
520 watts at full rated output. The amplifier shall have
thermostatic control to prevent operation at excessive
ambient temperatures. The amplifier also shall include
electronic overload limiting, short-circuit protection
and a 7-amp Slo-Blo fuse.
The amplifier shall have a standard EIA 19-inch front
panel suitable for rack mounting.The amplifier shall be
19” wide, 5-1/4” high and 11” deep, finished in black and
shall weigh 50 lbs.
50 Spring Street, P.O. Box 575, Ramsey, New Jersey 07446
[phone] FAX: [phone]