Description
The NuPrime MCX-800MZ is a multichannel power amplifier intended for demanding home cinema or multi-channel installations. It features eight amplification channels, each built around an independent stereo module, allowing several speakers to be powered directly without the need for an additional external power amplifier.
Each module has its own adaptive-voltage switching power supply, synchronised with a high-speed gate driver error correction circuit. This architecture allows each channel to deliver high power with very low distortion, for a neutral and detailed sound reproduction even under heavy demand. Gain is adjustable from x17 to x32 via a variable resistor, allowing the input sensitivity to be matched to the source used. The input impedance of 47,000 Ω and a bandwidth of 10 Hz to 50 kHz ensure good compatibility with most preamplifiers and audio processors on the market, while a signal-to-noise ratio above 95 dB at 1 W, 10 W and 100 W limits perceptible background noise at different listening levels.
An advanced protection circuit continuously monitors the operation of the unit and intervenes in the event of a short circuit, overload, overheating or undervoltage, contributing to the reliability of the system during extended listening sessions.
This type of amplifier is aimed at users building a complete home cinema or multichannel installation, with several pairs of speakers or a bi-amplification configuration, and who are looking for a compact power amplifier capable of handling eight channels in a single unit.
Technical specifications
| Input impedance | 47,000 Ω |
| Frequency response | 10 Hz - 50 kHz |
| Gain | x17 ~ x32 (variable resistor) |
| Signal to noise ratio | > 95 dB at 1W, 10W, 100W |
| Dimensions (W x D x H) | 430 x 330 x 105 mm (with feet) |
| Weight | 10.5 kg |
What to check before buying used
On a multichannel amplifier of this type, it is worth testing each channel independently with a known source, to check for the absence of hum, intermittent cut-outs or level imbalance between channels. The RCA, XLR and speaker connectors, numerous on this model, deserve a visual check to spot any mechanical play or a socket damaged by repeated connections. Running under load, if possible on several channels simultaneously, helps to confirm that the protection circuit does not trigger unexpectedly.
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