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The Wohler AMP1A-30 2 Channel Analog Audio Monitor is a single rack space 2-channel audio monitoring system. It is optimized for the playback of audio in a near field working environment, where you need to be seated one to three feet from the source. The AMP1A-30 can be used in a variety of applications such as VTR bays, mobile production vehicles, teleconferencing installations, multimedia systems, satellite links, cable TV facilities, and on-air radio studios.
The unit features a stereo pair of self-powered speakers for the mid and high range in addition to two speakers dedicated to frequencies below 500Hz. These four speakers provide a combined peak output of 98 dB SPL at a distance of two feet. The front panel ¼" headphone jack allows for quiet monitoring of your sound source by muting the main speakers.
Designed to reveal problems with the quality of your sound source, the AMP1A-30 has a high frequency response that was shaped to boost the range of whine and hiss. The electronic cancellation of lower frequencies allows you to identify phase issues with your audio feed.
Thorough magnetic shielding allows placement next to video monitors
Audible indication of phase or polarity problems
Simultaneous peak program meter and VU metering
Front plate mounted volume and balance control knobs
In the Box
Wohler AMP1A-30 2 Channel Analog Audio Monitor
Limited 2-Year Warranty with Wohler Online Registration
Table of Contents
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2x XLR 1x 1/4" headphone jack
Peak Acoustic Output at 2 feet
98 dB SPL
1/6 octave: 80 Hz to 16 kHz (+ or - 7 dB); (-10 dB @ 50 Hz, 22 kHz)
2x 30 segment horizontal LEDs Scale: 65 dB (16 to -49 dB factory default for extended VU) Threshold: 0, 4, 6, 8 dBv(='0'), DIP selectable; factory setting is 4 d Dynamics: Simultaneous VU & PPM Resolution: 1 dB
VU Characteristics: Rise time: 300 ms to 99% of full indication Fall time: 300 ms PPM Characteristics: Attack time: 10 ms Decay time: 2 s, 0 to -20 dB
Aural Sound Outputs
Wohler speaker system Headphone (mutes speakers) 2x mid and high speakers 2x woofer speakers
≤ 8% @ worst case frequencies above 180 Hz including cabinet resonance, typically < 2%
< 0.15% at any level below limit threshold
Hum and Noise
> -68 dB below full output
For maximum output: 0 dB balanced (volume full on) Overload: 26 dBv balanced
> 40 kΩ balanced
< 1 Gauss any adjacent surface
RMS each side: 10 W transient/5 W continuous; RMS bass: 20 W Transient/10 W Continuous
Power to the unit is 24 V DC, 3.0 A The external power supply then connects to mains power: 100 to 240 VAC ± 10%, 50/60Hz
1 RU in a standard 19" rack
2 x 19 x 12" (45 x 483 x 298 mm )
14 lb (6 kg)
Wohler AMP1A-30 2 Channel Analog Audio Monitor Review