|Power Per Channel (8ohms)||150W|
|Warranty length||2 Years (3 Years on registration)|
Rated Output (1ch): 230W (6Ω), 190W (8Ω)
Rated Output (2ch): 170 W (8Ω, 0.9% THD)
Output (20Hz-20kHz): 170W (6Ω), 150W (8Ω)
Dynamic Power per Channel
Digital ToP-ART: 3 stage Darlington power stage
Current Feedback Amp Circuit: Yes
Analog Audio In/Out: XLR - 11, RCA -11 / 0
Zone Control: +12V Out: 1, In/through: 1/1
Auto Power Standby: Yes
Power Consumption: 650 W
Dimensions (WHD): 17-1/8” x 8-1/4” x 18-1/8”
Weight: 56 lbs.
Yamaha MX-A5000 is a flagship reference-quality 11.2 channel Power Amplifier providing top level Aventage series performance and designed to work seamlessly with the CX-A5000 AV Pre Amplifier. This power amplifier allows you to connect upto 11 separate channels and upto 2 subwoofers.
Featuring the same specially-designed high rigidity chassis, and the highest quality parts, component and build, the MX-A5000 creates a balanced connection for optimum performance.
Power & High-Density Presence
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 preamplifier, 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.
Delivering a staggering 150W per channel thanks to a custom-made, large-size toroidal transformer, the MX-A5000 is capable of driving even the most demanding speakers. A current feedback amp design with three stage Darlington circuit and 27,000uF custom block capacitors make the MX-A5000 one of the finest AV power amplifiers available and build quality and component selection is impeccable throughout. XLR balanced connections are noise resistant, while speaker terminals are high quality gold-plated. The detachable AC cord is thick and high quality.
High Rigidity Chassis for Sound Purity
As part of the no-compromise design policy for this amplifier, Yamaha created an advanced chassis with strong rigidity. Chassis stiffness is enhanced by an H-shaped cross frame that boosts mechanical strength, by adopting aluminum side panels that increase the stiffness of the housing and by a three-ply structure with independent top cover and side panels. Any external vibration from the rack or other sources is damped by heavy insulators.
The A.R.T (Anti-Resonance Technology) Wedge in the centre of the bottom cover acts as an additional vibration countermeasure and firmly supports the internal circuits and delicate parts. In addition, the MX-A5000 has a double bottom, consisting of vibration control plates made of 1/8 inch (1.6 mm) black steel, the same type of construction used on the previous flagship model Z11.
In order to support the heavy heat sinks and other parts, it has a left-right independent construction strengthened by a rigid-frame structure. The bottom frame reduces the transmission of vibration produced by the large power supply transformer and heat sinks. It also incorporates a heavy insulator that blocks external vibration.
Symmetrical Power Amp Layout
This is just one of the many design details that all combine to create a superior receiver. The interior of the unit has been precisely planned, circuit-routed and built so that the left and right channels are physically and electrically isolated. This naturally maximises channel separation, but also greatly improves signal to noise ratio and also helps to achieve a wide, open sound stage.
Highest Quality Components
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 (27,000μF) 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.
Noise Resistant, Highly Reliable
Electrical noise may be generated due to connection with other AV components and even to the connection between them, as well as from other sources of external noise. To ensure that the MX-A5000 and CX-A5000 are not affected by this distortion, balanced connections that are highly noise resistant were used, 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 preamp and the chassis of the power amp is removed, minimizing sound quality deterioration due to the connection.
Channel Output & Bi-amping
The MX-A5000 and CX-A5000 are designed to allow flexible system building. Complementing their 11-channel output that maximises Cinema DSP HD3 performance and makes the most of the capabilities of the speakers, they also support bi-amping for driving tweeter and woofer with separate amps. Furthermore, they allow bi-amping of 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. 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.
Auto Power Standby
Using less power saves money and is friendly to the earth. The MX-A5000 has an Auto Power Standby function that will turn the power off after eight hours. It can be turned on and off via a rear panel switch and will be overridden by the trigger function. 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).
Speaker Impedance Selection
The impedance selector on the rear panel of the MX-A5000 matches amplifier output current to various speaker impedances.