| Architect & Engineer Specifications - 430QXLR |
15-band type with frequency centers on standard ISO two-thirds octave Constant Q frequencies with 12 dB of boost and cut for each slider. Equalization sliders shall have a center detent at 0dB. Low-noise sliders shall be utilized having a travel of 20 mm. Each channel shall have a slider input gain control with +/-12 dB range with center detent at 0 dB. Bypassing each EQ channel shall be accomplished by a front-panel switch utilizing electronic FET switching to avoid transients and shall have an LED to indicate that the EQ is active. A front-panel low-cut filter per channel at 50 Hz with 12 dB/ octave slope shall incorporate electronic FET switching and shall have an LED to indicate that the filter is engaged. Output level shall be monitored on each channel by a four-LED peak-reading bar graph calibrated to read -10, 0, +10, and +18 dBu.
The input section shall have two inputs per channel—electronically balanced XLR and 1/4" TRS jacks. The output section shall have two outputs balanced XLR and impedance balanced 1/4" TRS jacks.
A front-panel rocker-type power switch shall provide visual indication with red marking. The power supply shall be internal with a thermally-fused transformer mounted in a low hum orientation. The transformer and primary side of the power supply shall be isolated from the secondary and electronics by means of a steel hum isolation shield. The power cord shall be detachable from an international standard IEC 320 power inlet receptacle. Unit shall be constructed to meet or exceed all applicable international safety and regulatory agencies. Unit shall be powered from 120 VAC 60 Hz (or 100 VAC 50/60 Hz, 230 VAC 50 Hz, 240 VAC 50 Hz). Unit housing shall be of all steel construction and shall be rack-mountable in an IEC standard 19" rack and shall occupy a 1U (1.75") rack space. An optional security cover shall be available.
The unit shall be a DOD SR430QXLR or SR430Q Graphic Equalizer.
| Frequency Response | 20Hz to 20kHz |
| Frequency center tolerance |
5%
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| S/N Ratio |
92dB
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THD
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0.04%
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| Input Impedance | 40 kOhms bal, 20 kOhms unbal |
| Maximum Input Level |
+21dB
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| Output Impedance | 102 Ohms bal, 51 Ohms unbal |
| Maximum Output Level |
+21dBu
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| Gain |
+/- 12 dB
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| Common Mode Rejection |
>75 dB@60 Hz
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