Solid State Power Amp Reviews

AVM Ovation MA8.2 monoblock power amplifier Specifications

Sidebar 1: Specifications

Description: Solid-state (MOSFET) monoblock power amplifier. Inputs: 1 balanced (XLR), 1 unbalanced (RCA). Power output: 600W into 8 ohms (27.8dBW), 1100W into 4 ohms (27.4dBW), 1750W into 2 ohms (26.4dBW). Frequency range: 0.3Hz–400kHz. Voltage gain: 30dB. Input impedance: 20k ohms balanced, 10k ohms unbalanced. Damping factor (8 ohms): >1000. THD (1kHz at 25W into 4 ohms): <0.005%. Signal/noise (ref. 25W into 4 ohms): >100dB, A-weighted.
Dimensions: 17.1" (435mm) W by 9.8" (250mm) H by 16.5" (420mm) D. Weight: 92.6 lbs (42kg) net, 107 lbs (48.5kg) shipping.
Finishes: Black, Silver.
Serial numbers of units reviewed: 6-01438, 6-01445.
Price: $29,990/pair. Approximate number of dealers: 12.
Manufacturer: AVM Audio Video Manufaktur GmbH, Daimlerstrasse 8, 76316 Malsch, Germany. Tel: (49) (0)7246-30991-0. Fax: (49) (0)7246-30991-69. Web: www.avm.audio. US distributor: AVM Audio USA. Email: avmusa@avm-audio.com.

COMPANY INFO
AVM Audio Video Manufaktur GmbH
US distributor: AVM Audio USA
avmusa@avm-audio.com
www.avm.audio
ARTICLE CONTENTS

COMMENTS
mrkaic's picture
Submitted by mrkaic on March 30, 2017 - 7:51pm

John, what kind of load resistors do you use in testing? Obviously, they can take way more than 1kW per channel.

John Atkinson's picture
Submitted by John Atkinson on March 31, 2017 - 4:21am
mrkaic wrote:
John, what kind of load resistors do you use in testing?

For testing high-power amps I use an array of four non-inductively wound 8 ohm resistors, each with its own heatsink, mounted on an aluminum plate. They are connected in series-parallel to give a combined load of 8 ohms.

mrkaic wrote:
Obviously, they can take way more than 1kW per channel.

Only in the short term.

John Atkinson
Editor, Stereophile

Awsmone0's picture
Submitted by Awsmone0 on June 2, 2017 - 1:53am

Hi JA

In figure 8 there is an enharmonic peak at 180 hertz

Do you know what this is....power supply multiple ?

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