Shure SE30-2 service manual Temperature Range

SPECIFICATIONS (Cont’d)

Distortion:

Below compression threshold, under 0.5% THD at +15 dBm output, 30-20 kHz.

At 10 dB compression, under 1% THD at +15 dBm output, Response Rate set to 7, 50-20 kHz. With Re- sponse Rate set to 0 (fast), under 2% THD at 50 Hz. At 1 kHz, under 0.8% THD at any level of compres- sion from 0 to 40 dB.

Compression Ratio:

8:1 minimum from 10 to 20 db compression. 5:1 minimum from 10 to 30 dB compression.

Compression Threshold:

Microphone: -96 dBV at maximum input gain.

Line: -48 dBV at maximum input gain.

Recovery Time:

Time required for gain to reach 90% of its final value when input is reduced by 10 dB from 20 dB com- pression is adjustable from approximately 100 milli- seconds to 8 seconds by Response Rate control.

Attack Time:

Same as recovery time for increases up to 12 dB. Maintains peak to average ratio at 12 dB (sine-wave equivalent).

Gated Memory:

In “hold” condition, less than 20 dB gain recovery after 1 minute.

Tone Oscillator:

1.0 kHz ± 10%, THD under 1%.

Input Control Interaction:

Under 0.1 dB with any combination, mix bus jack open. Under 1.5 dB with mix bus terminated in 50 K ohms or less.

Lo-cut Filters:

-6 dB per octave, 3 dB down at approximately 150 Hz.

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Input/Output:

Mix bus:

Impedance 3.9 K ohms. Gain (through 3.9 K ohms) from mix bus to line output, is 63 dB. Gain from micro- phone input to mix bus is 26 dB (terminated in 3.9 K ohms). Overall gain drops by 10 dB with mix bus terminated.

Circuit Protection:

Shorting the outputs, even for prolonged periods, will not damage the unit.

Microphone inputs will not be damaged by signals of up to 3 volts.

Temperature Range:

Operating:

-18°C (0°F) to 57°C (135°F).

Storage:

-29°C (-20°F) to 74°C (165°F).

Weight:

9 Ibs., 13½ oz. (4.5 kg) with batteries and line cord.

Operating Voltage:

AC Operation:

108-132 volts, 50/60 Hz (SE30 only).

108-132 or 216-264 volts, 50/60 Hz (SE30-2E only).

DC Operation:

30 volts ± 20%.