Electro-Voice 7100
 7100 - Call for pricing - Power Amplifier
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EV Commercial Power amplifiers are designed to operate under a variety of adverse conditions without fail.
Several configurations, power levels and features are available to suit nearly any commercial application.
The Electro-Voice 7100 stereo power amplifier utilizes proven design concepts to provide an ultra-reliable amplifier with virtually unmatched performance characteristics.
It achieves this success without increased complexity or cost, making it a real value.
Each channel delivers over 75 watts of continuous average power into 8 ohms or over 100 watts into 4 ohms over the full audio frequency range.
In the bridge mode, the amplifier can deliver more than 200 watts into an 8-ohm load at less than 0.10% THD.
The maximum midband output power is 100 watts per channel into 8 ohms and 145 watts per channel into 4 ohms at less than 1% THD.
Four output devices are utilized for a total device power dissipation of 520 watts.
Because the large heatsink area allows more than adequate dissipation, the amplifier is convection cooled and performs in total silence.
The single rackspace (1.75 in) chassis height makes for convenient installation.
Each channel is independently protected against excessive output voltage, excessive phase shift, radio-frequency interference, shorted loads and overtemperature.
The load is protected against startup and shutdown transients, DC faults, low AC voltage and subsonic signals.
A unique current-limiting circuit was designed specifically for the amplifier.
It features a variable current limit which is a function of the output signal voltage.
As a result, the amplifier can deliver the rated currents into rated loads, but substantially limits the current into low impedance or shorted loads (shorted output terminals).
Once the short is removed, however, the amplifier will resume normal operation.
The amplifier has “protect” LEDs for each channel which illuminate if the amplifier goes into thermal protection or if an internal circuit fault develops.
The amplifier has octal accessory sockets which will accomodate a variety of crossover and equalizer modules, simplifying system hookup and decreasing cost.
These electronic modules are powered from a bipolar 15-volt supply in the amplifier.
The amplifier has a 31-position detented gain control and separate “clip” and “protect” LEDs for each channel.
Features
- Space-saving, single-rack-space chassis (1.75-in. chassis height)
- Convection cooled for zero fan noise
- Front-mounted gain controls and headphone jack for easy access
- Octal sockets accept EV crossover and equalizer modules for easy system expansion
- 3-year warranty
Architectural and Engineering Specifications
The power amplifier shall be a dual-channel model of solid-state design employing true-complementary-symmetry output circuitry
and capable of operating from a 100/120/200/220/240-V, 50/60-Hz AC line.
The amplifier shall contain sensing circuitry to provide protection for the output transistors against over-temperature,
excessive output voltage, radio-frequency interference, shorted loads and excessive output phase shift.
The load shall similarly be protected against infrasonic signals, startup/shutdown transients, low AC line voltage, and DC.
Rear-mounted panel controls shall included a two-position mode switch for selecting between the dual monophonic mode or the bridged monophonic mode.
Input connections for each channel shall include an octal socket for use with optional electronic accessory modules, a 3-pin female XLR-type connector and ¼" phone jack.
Output connectors shall be 5-way binding posts.
Front panel indicators shall include an illuminated power on/off indicator, individually illuminated protection-circuit-activation indicators (Protect) and clipping indicators (Clip).
Front panel controls shall include a 31-detent gain control for each channel and an on/off switch.
The power amplifier shall meet the following performance criteria:
Maximum input voltage, 7.75 V rms;
Input voltage for rated output power into 4 ohms, 0.775 rms;
Rated output power per channel, >100 watts into 4 ohms from 20 Hz to 20 kHz at less than 0.10% THD,
>75 watts per channel into 8 ohms from 20 Hz to 20 kHz at less than 0.05% THD,
>200 watts into an 8-ohm bridged load from 20 Hz to 20 kHz at less than 0.10% THD with one channel driven;
Voltage amplification in dual mode, 28 dB;
Hum and noise, greater than 100 dB (A-weighted) below rated output power;
Frequency response, 10 Hz to 50 kHz (+0/-3 dB) at any output power up to rated output power;
Damping factor, >100 at any frequency up to 1 kHz in dual mode with 8-ohm load;
Intermodulation distortion (SMPTE), less than 0.1% in any mode into 8 ohms;
Crosstalk, less than 70 dB below rated output power;
Operating temperature, up to 50°C (122°F) ambient.
Dimensions shall be 1.75" (44.4 mm) high x 19.0" (482.6 mm) wide x 12.8" (325.1 mm) deep.
Net weight shall be 18 lb (8.16 kg). Color shall be gray on the front panel with black top, bottom, sides and rear with white nomenclature.
The power amplifier shall be the Electro-Voice 7100.
| Specifications |
| 4 Ω | 8 Ω | 16 Ω |
| Continuous Rated Output Power - THD=1%, 1 kHz, Dual Channel | > 145 W | > 100 W | - |
| Continuous Rated Output Power - THD <0.1%, 20 Hz–20 kHz | 100 W | 75 W | - |
| Max. Bridged Output Power - THD=1%, 1 kHz | - | > 270 W | > 200 W |
| Voltage Gain @ 1 kHz (Dual/Bridged) | 28 dB | 30 dB / 34 dB | 36 dB |
| Power Bandwidth @ 1 kHz, +0/-1 dBr | 20 Hz–20 kHz |
| Frequency Response (+0/-3dB, ref. 1 kHz/1 W) | 10 Hz–50 kHz |
| Input Sensitivity - rated output power @ 1 kHz, ±0.5 dB (Dual/Bridged) | 0 dBu (0.775 Vrms) | +0.5 dBu (0.869 Vrms) / -0.25 dBu (0.752 Vrms) | +0.5 dBu (0.869 Vrms) |
| Maximum Input Level - ref. 1 kHz | +20 dBu (7.75 Vrms) |
| Input Impedance (balanced/unbalanced) | > 30 kΩ / > 15 kΩ |
| Crosstalk - ref. 1 kHz | < 70 dB |
| Phase Response (20 Hz/20 kHz) | < +25° / > -25° |
| THD @ rated power | < 0.1% (Typ. < 0.05%) |
| IMD-SMPTE - 60 Hz, 7 kHz | < 0.1% (Typ. < 0.01%) |
| Slew Rate (Dual/Bridged) | 19 V/μs / 37 V/μs |
| Hum and Noise (A-weighted) | > 100 dB |
| Damping Factor - 1 kHz | > 100 |
| Power Requirement | 100V, 120V, 200V, 220V, 240V AC; 50–60 Hz |
| Power Consumption | up to 730 W |
| Headroom - @ 1 kHz, 1% THD | > 1 dB |
| Protections | Shortened output terminals, Over temperature, rf interference, Startup/shutdown transients, DC faults, Infrasonic signals |
| Cooling | Convection (thermally equalized 3/16" black anodized aluminum heatsink) |
| Output Topology | True complementary symmetry |
| Output Type | Dual Mode: Unbalanced, each channel; Bridge Mode: Balanced |
| Connections (input) | (2) ¼" phone, (2) Female XLR, (2) Octal accessory sockets |
| Connections (output) | Five-way binding posts |
| Power Cord | 1.83 m (6 ft), three-wire, 16 GA power cord with NEMA 5-15 plug/IEC |
| Fuse Type | T 4.0 A/250 V Slo-Blo® or equivalent (for 120 V ac use) |
| Ambient Temp. Limits | Up to 50° C (122° F) |
| Enclosure Material | Rack mount chassis, 16-GA steel, 3/16" 5052 aluminum alloy front panel |
| Dimensions (HxWxD) | 4.44 x 48.3 x 32.5 cm (1.75" x 19.0" x 12.8") |
| Weight | 8.16 kg (18.2 lbs) |
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7100 Specifications (pdf)