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Aural
Exciter Modules
519B
Audio Processing Module, 520D Line Level Input Processor |
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519B and 520D Aural Exciters are plug-in modules that fit TOA
900, Raymer 9000, and Peavey MA Series power amplifiers. The
Aural Exciter is an audio processor that provides many benefits
to the end user, including greatly improved presence and intelligibility
without altering any other part of the audio system. |
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Overview
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| The
Aural Exciter is a powerful processing tool that has been used
and acclaimed by the recording and broadcast industries since
1975, and has found countless new applications since then in
sound reinforcement, paging and P.A., tape duplicating, and
background music systems. An Aural Exciter can be used to benefit
any sound system. Until recently, one had to purchase a complete
piece of outboard equipment to enjoy the benefits of the Aural
Exciter, but advances in technology made it possible to include
the heart of the process on a small card to plug into an existing
piece of equipment, in this case the TOA 900 Series, Raymer
9000 Series, and Peavey MA Series power amplifiers.
The
519D or 520D installs in one input module space in the rear
of the amplifier, taking its power from the amplifier. Both
models feature a jumper selectable Bass Boost for 0, +6 or
+12 dB boost.
The
519D connects to the amplifier's Preamp OUT and Amp IN jacks
on the rear with a standard phono type cord, and processes
the entire amplifier output.
The
520D is a single channel input card. Its RCA type phono jack
takes any line level unbalanced input. The operating level
may be selected for -10 or +4dBm.
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| Why
It's Needed |
The
audio reproduction process is far from perfect, even under the
best of circumstances. Every step causes some degradation of
the audio signal. What is happening involves the loss of some
of the harmonics or overtones of the sound, the fragile parts
that give it intelligibility. Equalizers cannot restore clarity
and realism because they can only work on what's left of the
original sound, often increasing noise and distortion in the
attempt.
Although the initial impression of the Aural Exciter is often
that it is some form of EQ, a comparison soon proves the difference.
Equalizers are a static, fixed process, and they cannot boost
what is no longer there. Equalizers can also add considerable
power to the amplifier output, possibly causing amplifier clipping,
speaker damage, ear fatigue and/or increased reverberation.
The
Aural Exciter is a dynamic process that actually recreates
the missing harmonic material and adds it back in the form
of a very small cue signal. Because the enhancement signal
is so small, it adds little power to the audio signal. It
is easily reproduced, even by low quality systems, and is
not affected by acoustic problems, such as "dead zones"
or reverberant fields. Because the harmonics or overtones
created are derived from the main signal and are musically
and dynamically related, the result is very natural and pleasing
to the ear, and sounds "correct"..
Aural
Exciter is a proprietary process, patented worldwide and cannot
be duplicated by any other means than a genuine Aural Exciter.
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Features |
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For
TOA 900, Raymer 9000 and Peavey MA Series Power Amplifiers
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Increases
Presence and Clarity |
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Increases
Intelligibility |
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Provides
Greater Perceived Loudness |
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Adds
Perceived High End to Dull or previously Low Pass Filtered
Material |
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Model
520D Automatically Mutes for Priority Input |
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| Applications
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Bass
Contour Jumper Selectable |
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P.A.
Systems |
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Paging
Systems |
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Background
and Foreground Music Systems |
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Stage
Monitors |
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Increase
Presence and Clarity |
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Increase
Intelligibility |
| • |
Provide
Greater Perceived Loudness |
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Add
Perceived High End to Dull or Low Pass Filtered Material
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SPECIFICATIONS
- Aphex 519B / 520D Aural Exciter™ Modules for TOA,
Raymer, Peavey |
| Audio
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MODEL
519B |
MODEL
520D |
| Frequency
Response |
20Hz
- 20 kHz (± 0.5dB)
Mix at minimum, Bass Boost jumpered for 0dB boost |
Same
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| Hum
& Noise |
-92
dBu, MIX at minimum, 22Hz-22kHz |
-85
dBu, MIX at minimum, 22Hz-22kHz |
| THD
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<.01%
@1kHz, +8dBm |
Same
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| Bass
Boost Range |
0,
+6, +12dB, jumper selectable |
Same
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| Tune
Range |
n/a
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1kHz
to 5.6kHz |
| Input
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| Connector
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RCA
Type, female |
Same
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| Nominal
I/O Levels |
-10dBm
to -30dBm |
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| Nominal
Input Level |
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-10dBm
or +4dBm |
| Maximum
Output |
+19
dBm |
Same
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| Input
Impedance |
12k
ohms |
37k
ohms |
| Output
Impedance |
150
ohms |
Same
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| Other
Specifications
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| Power
Requirements |
+24VDC
@ 23 ma |
| Dimensions |
3.08"H
x 1.38"W x 3.46" D (78mm x 35mm x 88mm) |
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| There
are no downloads available for this product at this time. |
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