API Audio 5500 Dual Equalizer handleiding

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Handleiding

5500 Dual Equalizer API

Appendix

A1 5500 Technical Specifications

Rear Connectors: XLR & ¼” TRS Input, XLR Output

Input Impedance: 20K Ohms

Balanced Output Impedance: 75 Ohms, Transformer Coupled, Balanced

Maximum Input Level: +32dBu

Maximum output Level: +32dBu

Frequency Response: +/- 1dB from 20Hz to 30kHz

Signal to Noise Ratio: -105dB

Power Requirement: 18 Watts

Size: 19” x 1.75” (1U) x 11.25” deep

Size (boxed for shipping): 23.25” x 6.5” x 16”

Actual Weight: 10 lbs.

Shipping Weight: 14 lbs.

Filter Frequency Centers: LO: 30, 40, 50, 100, 200, 300, 400Hz

LO-MID: 75, 150, 180, 240, 500, 700, 1kHz

HI-MID: 800, 1.5k, 3k, 5k, 8k, 10k, 12.5kHz

HI: 2.5k, 5k, 7k, 10k, 12.5k, 15k, 20kHz

Filter Boost/Cut Steps: +/- 2, 4, 6, 9, 12dB

Range Multiplier: x1, x0.5, x0.25

A2 5500 Transformer Option

There is a field upgradable option for a transformer-coupled input. The discrete balanced

input circuitry is bypassed using this transformer. It uses the highest quality line input

transformer, which can provide low distortion and wide bandwidth when fed from

conventional professional gear. Other brands of audio equipment will encounter clipping at

around +24dBu, but another API device could distort any input transformer since it is

capable of an undistorted +30dBu output.

Since API equipment is capable of signal voltages that are typically twice as large as most

professional equipment, it is possible that the input transformer will experience some

distortion in the low frequencies when fed signals beyond +24dBu.

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