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Yamaha MX-A5000

AVENTAGE 11-channel High Performance Power Amplifier

Yamaha's MX-A5000 is their flagship AVENTAGE power amplifier that is designed to fit with the CX-A5000 11.2-channel Network AV Pre-Amplifier.

The MX-A5000 discrete structured 11-channel Power Amplifier delivers powerful driving force that provides superb quality and performance for all channels. Combined with the CX-A5000 11.2-channel Pre-amplifier, it achieves overwhelming silence and sound filled with dynamic feeling, the goal to which Yamaha constantly aspires. With all types of sound sources, you will enjoy a deep resonance that immerses you in music with the full scale presence of 11.2 channels.

The MX-A5000 utilises the most sophisticated engineering and technology, as well as traditional craftsmanship, for pure sound reproduction. As part of the no-compromise design policy, Yamaha created an advanced chassis with strong rigidity. The attention to detail is seen in both their application of A.R.T (Anti-Resonance Technology) and their H-shaped cross frame design that boosts mechanical strength, by adopting aluminium side panels that increase the stiffness of the housing, and by a three-ply structure with independent top cover and side panels. Internally the symmetrical power amplifier layout also maximises channel separation, but also greatly improves signal to noise ratio and also helps to achieve a wide, open sound stage.

The MX-A5000 uses a current feedback power amp with a Three-stage Darlington circuit that has superior phase properties and is resistant to speaker impedance fluctuation. To fully realise its inherent power, it uses high quality parts with superior sound quality that were strictly selected based on listening tests. The power supply transformer is a specially developed high output, high efficiency, large size toroidal transformer. With two specially developed high capacity (27,000uF) block capacitors, it minimises energy loss and features power supply capacity with generous headroom. This ensures sound capable of superior musical expression. The speaker output terminals are high quality gold-plated types, and are compatible with Y plugs for optimum speaker connectivity.

This clever design enables the whole AVENTAGE concept of massive power delivery to be brought to it's fullest conclusion, with the MX-A5000 unleashing the capability of 280 watts per channel when driven into 4 ohms. Even with gentler loading, the MX-A5000 provides huge depth of field and 'head room' with a deftly but definitive 150 watts per channel rated at 8 ohms. The Impedance Selector on the rear panel ensures that the MX-A5000 is in conformity with speakers of various impedances you may use. Plus, the MX-A5000/CX-A5000 combo allow biamping of, for example, all five channels using the 11 internal channels. Extra amps can be used to power multiple zones in addition to the main room, letting you configure your system for music play in a bedroom or kitchen, for example. On the MX-A5000, you can switch all 11-channel input jacks back and forth between balanced and unbalanced for each channel, further increasing system flexibility.

To ensure that the MX-A5000 and CX-A5000 are not affected by this distortion, they use balanced connections that are highly noise resistant—the same type generally used in pro audio equipment. Even the RCA unbalanced connection uses a ground sensing transmission method that achieves simple balanced transmission. And in cases such as that where each channel with the XLR is used selectively, the impact of noise flowing between the pre-amp and the chassis of the power amp is removed, minimising sound quality deterioration due to the connection.

The MX-A5000 integrates beautifully and robustly with the CX-A5000 and other components due to the provision of triggers. The trigger function allows automatic power synchronisation with other components that support this function. Connecting a preamp, for example, to the Trigger In jack turns the power on and off together with the preamp. Connecting another component such as a subwoofer to the Trigger Out jack syncs the power of that component to the MX-A5000. In addition, the input from the Trigger In jack can be output in a cascade connection to control the power of another component such as another power amplifier (Through Out).

When coupled with the CX-A5000 it sets a benchmark for best hopme cinema integration and performance - making it a must for the most discerning customers and custom installation professionals alike.

Yamaha MX-A5000 11 Channel Power Amplifier Features, Benefits & Specifications:

11-channel overwhelming power amplification
150 W per channel (8 ohms, 20 Hz-20 kHz, 0.06 % THD, 2 ch driven)
170 W per channel (8 ohms, 1 kHz, 0.9 % THD, 2 ch driven)
290 W per channel (4 ohms, 1 kHz, 0.9 % THD, 1 ch driven [European Model])
280 W per channel (6 ohms, 1 kHz, 10 % THD, 1 ch driven, JEITA)
Custom-made large-size toroidal transformer
Current feedback power amp with Three-stage Darlington circuit
27,000uF custom block capacitors
Specially designed high rigidity chassis and highest quality parts
Noise resistant XLR balanced connections
Biamping capability with channel selector
High quality gold-plated speaker terminals
Auto Power Standby
Handy trigger control (trigger in / out and through out )
Detachable high quality thick AC cable
Dimensions: 435 x 210 x 463.5 mm  (W x H x D)
Weight: 25.4 kg; 56 lbs.

Yamaha MX-A5000 11 Channel Power Amplifier - Resources & Downloads:

Yamaha CX-A5000/MX-A5000 Brochure

Yamaha MX-A5000 Operation Manual

Yamaha CX-A5000 & MX-A5000 Connection Guideline