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The HQS 7001 is a reference mono power amplifier whose outstanding performance is second only to JMF Audio's flagship HQS 9001 reference mono amplifier. The machined aluminium Orose® enclosure houses an internal chassis and its sub-chassis.
Technical specifications:
- Sensitivity: all models have the same voltage gain (facilitating multi-amplification).
- Impedance: 20 kΩ
- Connection: 3-pin XLR - metal housing, gold-plated contacts
- Common mode rejection: 100dB CMRR typ., based on psychoacoustic criteria as of 2012
- Type: High-precision balanced input stage (impedance matched to PRS 1.5)
- Monitoring: Level metering (-15dB to +3dB), input offset, overload, high temperature
Output
- RMS output power: 380W / 8Ω 700W / 4Ω 1000W / 2Ω
- Output current capacity: 112A
- Operating load limit: 1Ω - current limited intentionally for amplifier and loudspeaker protection
- Connection: JMF Audio LSS dia. 6mm (120A continuous rated) or gold-plated WBT fork/cable
Background noise and hum: Better than -125dB unweighted at 1kHz (measured in 2012)
3Hz..100kHz (-3dB) 3Hz..40kHz (0dB) (intentionally limited for RF immunity)
Bandwidth: 3Hz..100kHz (-3dB) 3Hz..40kHz (0dB) (intentionally limited for RF immunity)
DC-coupled (dedicated DC servo circuit). Audio signal coupling
Protection circuitry
Front panel standby control (before F-version)
Automatic protection against large high-frequency signals
Automatic DC protection below 3 Hz
Automatic overheating protection
Automatic protection against overloads and short-circuits
Mains voltage monitoring (activation of the protections indicated on the front panel)
Power supply: 100, 120, 230-240 V AC (internal selection)
Passive heat sink
Sealed enclosure design (no air passage inside the amplifier, no dust).
Cooling
Orose® machined anodised aluminium outer casing up to 16 mm thick, machined steel and rose gold-plated buttons
Dimensions (G-version): 19"+ width | 482 W (front panel) x 539 D x 149 H mm
Net weight (G version): 34 kg/unit
Silver or black (anodised)
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