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Old 20th March 2007, 05:21 PM   #1
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Default Ayre MX-R "Uma"

Congratulations to Charles on Stereophile's excellent review of what by all appearances looks to be (ahem, and is no doubt sonically) an excellent product!
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Old 21st March 2007, 05:07 AM   #2
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MX-R mono amplifier

The Ayre MX-R mono amplifier takes a bold new approach to amplifier design. Its unique monocoque architecture joins the chassis and the heat sink into a single elegant structure for unparalleled mechanical integrity. The dual-transformer linear power supply effortlessly drives the most demanding loudspeakers. Our exclusive EquiLock technology enhances the zero-feedback, fully-balanced circuitry for an unprecedented level of clarity and resolution. Breathing new life and vitality into your favorite compositions, the Ayre MX-R will change the way you listen to music.

Features/Specifications | Manual
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Features

Zero-feedback, fully-balanced discrete circuitry
Linear analog power supply
Ayre's exclusive Equilock circuit
Ultra-low loss circuit board material
Custom developed audio-grade resistors
Proprietary polystyrene capacitors
ThermalTraktm transistors for real time optimal biasing
Ayre Conditioner (patent pending) power line RFI filter
AyreLink communication system




Specifications

Power Output
300 watts per channel continuous into 8 ohms
600 watts per channel continuous into 4 ohms

Gain
26 dB

Input Impedance
2 Mohm balanced (1 Mohm per phase)

Frequency Response
DC - 250 kHz

Power Consumption
45 watts in standby mode
120 watts in operating mode, no signal

Dimensions
11" W x 18.75" D x 3.75" H
(28cm x 48cm x 9.5cm)

Weight
52 pounds 23 kg
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Old 21st March 2007, 09:40 AM   #3
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Mr Hansen definitely is first in line for the dustfree amp award.
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Old 21st March 2007, 02:48 PM   #4
MiiB is offline MiiB  Denmark
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Now all we need is a schematic.

No Just kidding. Having heard the prior Ayre amplifiers i am sure this is a fine piece of equipment.

Michael
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Old 21st March 2007, 04:45 PM   #5
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Do you think the amp is self-dusting? That's gotta be the future for hifi.
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Old 22nd March 2007, 02:16 AM   #6
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Yah, nice amp. $16,500 a set and one blew up during the 2-ohm test. It blew two of four fuses, but when the two fuses were replaced, they blew again – dead amp.

There were also the obvious problems associated with zero-feedback amps. Besides weird lumps in the frequency response, but also greatly increasing distortion with decreased load impedance. Analog linear power supply? Couldn’t their sales department/BS-artists do better than that? Leave it to Stereophile – even though the amp blew, they tinkled all over it.

Sure, gorgeous heatsink/chassis, compact design, clean layout, but $16.5K? No thanks.
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Old 22nd March 2007, 08:01 AM   #7
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I'm told a special brush to clean the fins and holes between the fins is complementary.
(acused of having a sense of humor)
Anyone ever trying to copy the MX-R has my deepest sympathy.
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