APPLICATION
The AE Techron 7781 amplifier is a member of the AE Techron 7700 Amplifier Series. The 7700 series are AE Techron’s most powerful single-channel amplifiers. The 7781 is a cost effective solution for situations requiring short-term burst power, and/or continuous power where load impedances are below 2 ohms. The 7781 is best suited to situations where only one
amplifier is likely to be needed.

A single 7781 can provide 40 mSec bursts of over 180 amps peak. The 7781 can be connected (up to 2 units) in series with other 7781 amplifiers for additional voltage.

The 7781 can operate in either voltage or current operation modes and is DC coupled.

FEATURES
> Lowest cost 7700 Series amplifier with Bi-LevelTM Smart Power supply. High Voltage & High Current with less heat.
> Over 4,000 watts peak output; 2858 watts rms into a 2 ohm load
> 40 mSec pulses of up to 150 amperes peak into a 1 ohm load
> Can be connected in series with other 7781 amplifiers
> System output of 500 volts and 200 amperes maximum are possible with multiple, interconnected amplifiers.
> Frequency bandwidth of DC to 50 kHz at rated power, DC to 100kHz at reduced power.
> Rugged chassis for stand alone or rack mounted operation . No additional power supplies required.
> Protection circuitry protects the 7781 from input overloads, improper output connection (including shorted and improper loads), over
temperature, over current, and supply voltages that are to high or to low.
> Shipped ready to operate from 208 volt, three-phase ac mains. Operation from 380, 400 or 415 volt ac mains are available on request.

INDICATORS AND CONTROLS
> Front panel LEDs indicate power, standby, high temperature, signal overload and faulty output stage.
> Front panel rocker switch to reset indicator LEDs.

PERFORMANCE (One hour continuous ratings)
Maximum output power*
2858 watts rms
Output offset current
Less than 10 milliamperes dc
Input
Balanced with ground. Three terminal barrier block connector
20.0 ohm differential
Gain
20 volts/volt in voltage mode, 20 amperes/volt in current mode
Residual Noise
Less than 1 millivolt rms
Slew Rate
46 volts per microsecond

*Output peak power is dependant on load, signal and % duty
cycle. Please contact your AE Techron Representative for
details.

DIMENSIONS

PHYSICAL CHARACTERISTICS
Chassis: All aluminum construction designed for stand alone, or rack mounted, operation with light pearl front panel and black chassis. The Amplifier occupies six EIA 19-inch-wide rack units.
Weight: 128 lbs. (57.9 kg)
AC Power: Three phase, 208 volts, 47-60 Hz, 20 amperes ac service.
Cooling: Forced air, 300 cfm required.
Dimensions: 19 in. x 10.5 in. x 22.37 in (48.3 cm x 26.7 cm x 56.8 cm)

SUPPORT
When you purchase an AE Techron amplifier, a full complement of technical and factory support personnel join your team. AE Techron provides:
> Applications engineering for your technical questions and customizedproduct needs.
> A one year limited warranty to protect your equipment investment.
> A fully equipped service center to keep your amplifier operating at original performance requirements.

To download a PDF file of this specification sheet, click here.