Crown PIP-CLP OVERVIEW

The Crown P.I.P.-CLP amplifier accessory input module works with all P.I.P. and PIP2 compatible Crown amplifiers. The module features an error (IOC) driven compressor function for speaker protection at a very economical price

The Crown P.I.P.-CLP is the perfect amplifier input module for any PA application from weekend warrior to pro touring companies. The idea is simple: protect speakers by preventing amplifier clip. In this example a Macro-Tech amplifier is shown because it is the touring amplifier of choice. For a price much lower than external limiters, the P.I.P.-CLP offers protection from within the amplifier where the actual amplifier level can be sensed directly. Because it is installed in the amplifier it also saves on rack space, power consumption, and protects the system from tampering

The input signal enters through the XLR inputs via an actively balanced front end stage. The output stage includes the compressor circuit which actually varies the gain of the module when amplifier output clipping is detected. The amplifier's IOC signal enters the module and if the amplifier reaches an IOC level (0.05% distortion occurs before hard clip), the P.I.P.-CLP limits input drive to prevent hard clip.

FUNCTIONS

Compressor: Infinite compression ratio triggered by amplifier IOC. 0.35 msec attack, 180 msec decay.
Note: the attack time may be increased to 5 msec by changing R117/217 from 10 kOhm to 121 kOhm (intermediate values result in intermediate attack times). To increased both attack and decay times (double) also change C103/203 from 0.1 µF to 0.22 µF. This modification should only be performed by a qualified technician. The purpose of this modification is to change the sound of the compressor to make the amplifier "sound louder." Infinite compression ratio triggered by amplifier IOC. 0.35 msec attack, 180 msec decay.

SONIC QUALITY

All ratings and specifications based on a 0.775V input.

Hum and Noise: -85 dB (equivalent input noise) from 20 Hz to 20 kHz. Hum and Noise: -85 dB (equivalent input noise) from 20 Hz to 20 kHz. Hum and Noise: -85 dB (equivalent input noise) from 20 Hz to 20 kHz. Hum and Noise: -85 dB (equivalent input noise) from 20 Hz to 20 kHz. Hum and Noise: -85 dB (equivalent input noise) from 20 Hz to 20 kHz. Hum and Noise: -85 dB (equivalent input noise) from 20 Hz to 20 kHz. Hum and Noise: -85 dB (equivalent input noise) from 20 Hz to 20 kHz. Hum and Noise: -85 dB (equivalent input noise) from 20 Hz to 20 kHz. Hum and Noise: -85 dB (equivalent input noise) from 20 Hz to 20 kHz. Hum and Noise: -85 dB (equivalent input noise) from 20 Hz to 20 kHz. Hum and Noise: -85 dB (equivalent input noise) from 20 Hz to 20 kHz. Hum and Noise: -85 dB (equivalent input noise) from 20 Hz to 20 kHz.

Frequency Response: ±0.2 dB ±0.2 dB Frequency Response: ±0.2 dB ±0.2 dB Frequency Response: ±0.2 dB ±0.2 dB Frequency Response: ±0.2 dB ±0.2 dB Frequency Response: ±0.2 dB Frequency Response: ±0.2 dB Frequency Response: ±0.2 dB Frequency Response: ±0.2 dB from 20 Hz to 20 kHz.

Nominal Gain: Unity ±0.5 dB. Unity ±0.5 dB. Nominal Gain: Unity ±0.5 dB. Unity ±0.5 dB. Nominal Gain: Unity ±0.5 dB. Unity ±0.5 dB. Nominal Gain: Unity ±0.5 dB. Unity ±0.5 dB. Nominal Gain: Unity ±0.5 dB. Nominal Gain: Unity ±0.5 dB. Nominal Gain: Unity ±0.5 dB. Nominal Gain: Unity ±0.5 dB.

INPUT/OUTPUT

Input Impedance: Nominally 20 Kohms balanced, 10 Kohms unbalanced. Input Impedance: Nominally 20 Kohms balanced, 10 Kohms unbalanced.

None.

Input: Balanced female XLR. Input: Balanced female XLR. Input: Balanced female XLR. Input: Balanced female XLR. Input: Balanced female XLR. Input: Balanced female XLR. Input: Balanced female XLR. Input: Balanced female XLR. Input: Balanced female XLR. Input: Balanced female XLR. Input: Balanced female XLR. Input: Balanced female XLR.

Dimensions: 6.375 x 1.875 x 3.875 inches.