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Da7122 Features And Specifications - Fujitsu ECLIPSE DA7232 Manual

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ECLIPSE's dedicated subwoofer amplifiers
use Class D amplifier technology and
topology to produce the greatest
efficiency of any class of amplifier
operation. The DA7232 2 channel and
DA7122 1 channel Class D subwoofer
amplifiers effortlessly drive any subwoofer
system to produce awesome low
frequencies both heard and felt. ECLIPSE
combined well-known specialist audio
manufacturer Bang&Olufsen's
amplification modules with proprietary
no-compromise audio technologies to
create the ultimate subwoofer amplifiers.
Class D optimized for low frequency
reproduction.
A class D or Pulse Modulation Amplifier (PMA)
switching amplifier design makes use of its
output devices (usually MOSFETS) to pulse on
and off at very high frequencies with a
continuously changing duty cycle. The result is
an average output level which is then converted
to an audio signal by the averaging action of the
speakers. The efficiency of Class D amplifiers
reaches over 90% with significantly less heat
generation than conventional amplifiers,
allowing smaller dimensions while generating
significant power and making them inherently
ideal for reproducing low frequencies. And
because a dedicated subwoofer amplifier only
reproduces a limited bandwidth, the DA7232
and DA7122 exploit all the advantages of Class
D amplification to the maximum. ECLIPSE also
uses a new and innovative Class D/PMA
modulation method with higher performance
than conventional Class D amplification.
Compact but extremely powerful.
With compact footprints, the DA7232 amplifier
and DA7122 1 channel amplifier easily output
2000W per channel with vanishingly low total
harmonic distortion and a high S/N ratio. The
high efficiency of these amplifiers makes any
forced cooling unnecessary, eliminating fans
and heavy heat sinks even when operating
continuously at high power and driving low
impedance speaker loads.
Integrates seamlessly with the total
system.
These amplifiers incorporate a flexible onboard
crossover section with variable subsonic and
low pass filters for optimally balanced and
seamless sound between subwoofers and main
speakers.
Quality construction throughout.
Built to the same exacting standards as other
models in the Premium Amplifer Series, the
DA7232 and DA7122 boast high-end amplifier
circuits and construction techniques such as
high-efficiency high-energy isolated power
supplies, symmetrical layout, high input
overload, discrete protection and audiophile-
grade components. This uncommon level of
attention to build and quality in dedicated
subwoofer amplifiers is what optimizes these
amplifiers for use in the most demanding
systems.
1 Channel Class D Subwoofer Amplifier
Specifications
13.8V POWER SUPPLY
Max. Power Output
1Ω
Power Output
2Ω
4Ω
THD @ Rated Power
@ 1Ω
@ 2Ω
@ 4Ω
Input Voltage Neg Gnd
S/N Ratio
Freq. Response
Crosstalk
Slew Rate
Damping Factor
Input Sensitivity
Max. Current Consumption
CHANNELFLEX CROSSOVER
Amp Crossovers
Lo-Pass 12dB/octave
Subsonic 18dB/octave
Pre-Amp Output Hi-Pass
12dB/octave
Dimensions (W × H × D)
Designed, engineered and made in the U.S.A.
Features
• Maximum power output of 2000W (both
channels) into a 2 ohm load.
• Peak output current in excess of 50A for
virtually limitless power.
• Immense 120dBA dynamic range for
effortless reproduction of the lowest
frequencies.
• Built-in protection against over and under-
voltage conditions.
• Additional protection for amplifier and
speakers as well as soft clipping and soft
start-up functions.
• Balanced inputs and outputs.
DA7122
DA7232
2000W × 2ch
Not Supported
2000W (2 × 1000W)
1000W (2 × 500W)
Not Supported
0.007%
0.005%
10.8 ~ 16V
>120dB
4 ~ 3000Hz
>80dB
20Vµs
>1000
0.2 ~ 8V
200amps
50 ~ 200Hz
Defeat 1 ~ 60Hz
50 ~ 200Hz
21˝ × 2.05˝ × 11.85˝
DA7122
2000W × 1ch
Not Supported
1000W
500W
Not Supported
0.007%
0.005%
10.8 ~ 16V
>120dB
4 ~ 3000Hz
>80dB
20Vµs
>1000
0.2 ~ 8V
100amps
50 ~ 200Hz
Defeat 1 ~ 60Hz
50 ~ 200Hz
15.75˝ × 2.05˝ × 11.85˝
5

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