BBE BBE 882 manual Specifications, General Operation, BBE and Equalization, Frequency Response

Specifications

Frequency Response,

process mode:	……………Program controlled
bypass mode:	……………10Hz to 50kHz +/-0.5dBu, 0dBu input
Signal to Noise: ……………………-92dBu
THD, process mode: ……………less than 0.025% at -0dBu input, 20-20kHz
bypass mode:	……………less than 0.002% at -0dBu input, 20-20kHz
Maximum Output: ………………+23dBu (may vary due to control settings)

Input Impedance: …………………14.7k Ohms, balanced 1/4" TRS phone jack or XLR jack Pin #2 hot or “+”.

Output Impedance: ………………600 Ohms, balanced 1/4" TRS phone jack or XLR jack Pin #2 hot or “+”.

Sensitivity: …………………………-45dBu for maximum process

Maximum Process: ………………+12dBu boost at 5kHz, 0dBu input

Lo Contour: …………………………+12dBu boost at 50Hz, 0dBu input

* 0dBu = 0.775mVrms

Power Requirements: ……………U.S., Canada & Japan models: 120VAC, 50/60Hz, 8 WATTS

Standard model: 220VAC, 50/60Hz, 8 WATTS

Fuse: ………………………………Replace with the same type FASTBLOW fuse

U.S., Canada & Japan models: 250Vac, 1 /2A Fast blow type fuse.

Standard model: 250Vac, .125A Fastblow type fuse

Dimensions: ………………………19"(W) x 5.5"(D) x 1.7"(H)

Shipping Weight: …………………7 lbs.

Note: Due to continuing product improvement, specifications and design are subject to change without notice.

General Operation

THE BBE 882 IS A BALANCED LINE LEVEL SIGNAL PROCESSOR AND IS TO BE CONNECTED PRIOR TO THE POWER AMP IN ANY AUDIO SYSTEM. SIGNIFICANT DAMAGE MAY BE INFLICTED TO THE BBE 882 OR ANY SUBSEQUENT COMPONENT IN THE SYSTEM IN THE EVENT THE OUTPUT OF A POWER AMP IS CONNECTED DIRECTLY TO THE INPUT OF THE BBE 882.

In order to reduce the risk of damage to any equipment, properly connect all cables and power cables before turning on any components in the system. Most important of all, ALWAYS TURN ON THE POWER AMPLIFIER LAST TO AVOID DAMAGING THE SPEAKERS OR THE AMP.

The BBE 882 may be utilized in a number of different environments and its results may vary accordingly. Because both channels are completely independent from each other, only one channel of the BBE 882 may be used, or each channel processing a different signal source. The effects loop is the ideal placement in the signal chain of a guitar application. In a pre-amp, keyboard or P.A. application, the BBE 882 works best as the last component in the signal chain, just before the crossover or power amp. Important: In a P.A. application, never connect the BBE 882 into the effects loop. The inherent phase shift of the BBE Process will cause phase cancellation resulting in a partial loss of signal.

BBE and Equalization

The most common question asked of the BBE Sound, Inc. service department is: “Where does the BBE Processor connect in the signal chain, before or after the equalizer?” Many people find that the same amount of equalization is no longer needed, if at all, when a BBE processor is used. Additionally, the amount of equalization used will help determine the BBE 882’s proper location in the signal chain: If the EQ is being set to give the room a flat response as determined by a spectrum analyzer, the BBE 882 will work properly before or after the EQ. (Placing the BBE 882 after the EQ is recommended.) If the EQ is being used for drastic tone alteration, the recommended placement would be before the EQ. Neither of these configurations will harm the BBE 882.

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