Master Audio MQA7100 professional power amplifier 2 x 600 Wrms / 8Ω, 2 x 850 Wrms / 4Ω, 1 x 1100 Wrms Bridged

Professional amplifier

- 600W RMS each channel on 8 Ohm

- 850W RMS each channel on 4 Ohm

- 1100W RMS bridge power on 8 Ohm

- Frequency response: 10-50.000 Hz

- Input sensitivity: 0,775V

- Signal/noise rate: >100dB

- Segregation ratio: >105dB

- Dumping factor: >500

- Input impendance: 20Kohms

- Slew rate: 55V/microsec.

- Thermal protection, short circuit, overload

- Ground/Lift switch

- XLR, Jack 6.3 mm inputs

- Speakon, binding connector output

- Dimensions: 482 x 453 x 88 mm

- Weight: 19kg

- Package: 1 piece each box

Crown DSi 2000 2x800W-4Ω Power Amplifier

The Crown? DSi 2000 power amplifier shall be a solid-state two-channel model with a switch-mode universal power supply. A rear-panel HD-15 connector shall provide input/output connectivity between the DSi amplifier and the DSi-8M System Monitor.

The outputs shall be usable as stereo or bridged-mono modes of operation.

The bridged-mono mode shall bridge the outputs to provide increased output voltage.

Front panel controls and indicators shall include the following:

Level: Detented rotary level control, one per channel.

Power Switch: On/off switch applies AC power to the amplifi er.

Sel/Prev/Next Buttons: Three buttons near the LCD screen shall be used to access menu items and front panel lockout.

LCD Screen: Backlit liquid crystal display shows speaker presets and signal processing.

Signal Indicator: Green LED, one per channel, illuminates when a very low-level signal is present at input.

?10 Indicator: Green LED fl ashes when output signal exceeds ?10 dB below clip.

?20 Indicator: Green LED fl ashes when output signal level exceeds ?20 dB below clip.

Ready Indicator: Green LED, one per channel, illuminates when the amplifier is ready to produce audio.

Clip Indicator: Red LED, one per channel, turns on at the threshold of audible distortion.

Temp Indicator: Red LED, one per channel, illuminates under excessive temperature conditions.

Power Indicator: Blue LED illuminates when the amplifi er has been turned on and has power.

Rear panel controls and connectors shall include the following:

AC Line Connector: NEMA 5-15P (15A).

Input Connector: Two 3-pin removable Phoenix-type connectors each accept a balanced line-level input signal.

Output Connectors: 4-position barrier strip with connectors for dual louspeakers or bridge-mono loudspeaker.

HiQnet USB Connector: Type B, connects to a HiQnet network.

HD-15 Connector: For cinema I/O compatibility with DSi-8M System Monitor.

The amplifier shall have the following specifications:

Output Power: 2 ohm Stereo (per channel): 1,000W with 1% THD, 4 ohm

Stereo (per channel): 800W with 0.5% THD, 8 ohm Stereo (per channel) 475W

with 0.5% THD, 4 ohm Bridge-Mono: 2,000W with 1% THD, 8 ohm Bridge-

Mono: 1,600W with 0.5% THD.

Voltage Gain at 1kHz, 8 ohm rated output: 26 dB.

Frequency Response: +0/?1 dB from 20 Hz to 20 kHz at 1 watt into 4 ohms.

Load Impedance: Safe with all types of loads. Rated for 2 to 8 ohms in Stereo

mode, 4 to 16 ohms in Bridge-Mono mode.

Sensitivity at 8 ohm rated output: 3.09V.

Sensitivity at 4 ohm rated output: 2.84V.

Sensitivity at 2 ohm rated output: 2.24V.

Signal to Noise Ratio (below rated 8-ohm power at 1 kHz): 105 dB

(A weighted).

Damping Factor: Better than 500 from 20 Hz to 500 Hz.

Crosstalk: > 70 dB below rated power, 20 Hz to 1 kHz.

Input Stage: Input is electronically balanced and employs precision 1% resistors.

Input Impedance (nominal): 20 k ohms, balanced;10 k ohms,unbalanced.

Maximum Input Signal: +22 dBu typical.

Power Rating    

Stereo Mode:
8Ω EIA 1 kHz 1% THD - 500W
4Ω EIA 1 kHz 1% THD - 850W
2Ω EIA 1 kHz 1% THD - 1250W

Bridged Mono:
8Ω EIA 1 kHz 1% THD - 1700W
4Ω EIA 1 kHz 1% THD - 2500W

Damping Factor     Not Specified By Manufacturer
Input Sensitivity     26dB Setting - 3.28V
32dB Setting - 1.60V
Input Impedance     > 10kΩ balanced, or unbalanced
Gain     34.5dB
Frequency Response     20Hz to 20kHz, +/- 0.2dB
Signal-to-Noise Ratio     -106dB
Total Harmonic Distortion (THD)     0.02% @ 2Ω
0.005-0.01% @ 4Ω
0.002-0.01% @ 8Ω
Input Connections     Input: XLR Male, XLR Female and 3-pin detachable terminal blocks (1 each per channel)
DataPort: HD-15, input signal in parallel with XLR input connectors
Output Connectors     Output: Neutrik Speakon (ch 1 wired to both channels) and 5-way binding posts
Controls Front Panel     AC Power Switch
Gain Controls, 21 detents, 1 dB steps (each channel)
Controls (Rear)     Input Mode: Bridge (Yellow), Stereo (Green), or Parallel (Orange)
Gain / Sensitivity: 26dB (Orange), 32dB (Green), or 1.2V (Yellow)
High Pass (each channel): 3Hz (Off), 30Hz (Yellow), or 50Hz (Orange)
Clip Limiter (each channel): Off, On (Yellow)
Indicators     Clip Limiter (each channel): Off, On (Yellow)
Camera Resolution     Flow-thru air path and solid aluminum heat sinks
Power Consumption     120V 50/60Hz - 8.5A
230V 50Hz - 7.5A
Power Requirements     Not Specified By Manufacturer
Dimensions (WxHxD)     19 x 3.5 x 15.63" (48.3 x 8.9 x 39.7cm)
Weight     33.5 lbs (15.2kg)
Specialties     Parallel Dataport, XLR/M and XLR/F connectors for simple loop-through connectivity

- Power levels matched to the most popular speakers used by entertainers
- Optimized for maximum real-world headroom into 4 ohm and 8 ohm speaker systems
- Inputs: XLR, 1/4" TRS and phono input connectors for compatibility with any source
- Outputs: Speakon(R) combo accepts, 1/4" (TS) plugs or Speakon 2-pole and 4-pole plugs (connects 2 poles only). Binding posts support all other speaker wiring systems
- Minimum depth chassis (10.1“/257 mm) fits in compact, inexpensive effects racks
- Lightweight - GX7 is only 15.5 lbs (7 kg)
- Detented gain controls for precise setting and matching of sensitivity
- GuardRail(TM) automatically protects the amplifier and loudspeakers from damage due to temperature rise or overdrive without shutting down the show
- Front panel LEDs monitor Power, Signal and Clipping
- Subwoofer/Satellite crossover built-in
- 230V 16.5 lbs (7.5 kg)