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Specifications
Frequency Response,
process mode:……………………………Program controlled
bypass mode: ……………………………10Hz to 50kHz +/-0.5dBu, -10dBu input
THD, process mode:……………………………less than 0.025% at -10dBu input, 20-20kHz
bypass mode: ……………………………less than 0.002% at -l0dBu input, 20-20kHz
Maximum Output: ………………………………+18dBu (may vary due to control settings)
Input Impedance: ………………………………47k Ohms, unbalanced 1/4
"
phone jack or RCA jack
Output Impedance: ……………………………1 k Ohms, unbalanced 1/4
"
phone jack or RCA jack
Sensitivity:…………………………………………-45dBu for maximum process
Maximum Process: ………………………………+12dBu boost at 5kHz, -l0dBu input
Lo Contour: ………………………………………+12dBu boost at 50Hz, -l0dBu input
* 0dBu = 0.775mVrms
Power Requirements:……………………………U.S., Canada 8 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: ………………………………6.5 lbs.
Note: Due to continuing product improvement, specifications and design are subject to change without notice.
General Operation
THE BBE 482 IS A 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 482 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 482.
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 482 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 482 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 482 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 482 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 482’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 482 will work properly before or after the EQ.
(Placing the BBE 482 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 482.
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