User manual BBE SOUND 362XL

[. . . ] A lower frequency may reach the listener's ear first or perhaps simultaneously with that of a higher frequency. In some cases, the fundamental components may be so time-shifted that they reach the listener's ear ahead of some or all of the harmonic components. This change in the phase and amplitude relationship on the harmonic and fundamental frequencies is technically called "envelope distortion. " The listener perceives this loss of sound integrity in the reproduced sound as "muddy" and "smeared. " In the extreme, it can become difficult to tell the difference between musical instruments, for example, an oboe and a clarinet. conducted extensive studies of numerous speaker systems over a ten year period. [. . . ] CLIP LED: Will illuminate at +14dBu, giving a 6dBu warning of the impending distortion at +16dBu, the actual clip point. BBE FUNCTION: This push button switch allows for quick comparison of processed with unprocessed sound. When the switch is pushed in, the process is on and the indicator LED is green. When the switch is out, the process is off and the indicator LED is red. POWER: This switch controls primary power to the BBE 362XL. REAR PANEL CONNECTIONS 1 2 3 4 1. For all other models, replace with 250Vac, . 125A Fastblow type fuse. ) 3. OUTPUT: The output of the BBE 362XL can be taken from the 1/4" stereo TRS Phone Jack or the XLR Jack. This allows both outputs to be used simultaneously, eliminating the need for a "Y" cord in the event multiple, balanced outputs are required. If both outputs are being used, a minimum of a 22k Ohm load per device is required. (The "load" is determined by the input impedance of the next subsequent component in the signal chain. ) The maximum output is rated at +26dBu. NOTE: Actual output level will vary due to the selected position of the BBE Process, and the actual input signal level. If both the XLR and Phone Jacks are being used, both must be either balanced or unbalanced. Although is can be either a TRS 1/4" stereo Phone Plug or an XLR Plug, it is recommended that only one input source be used. Both jacks are the same point electronically, however, due to the input/output impedance characteristics of most audio devices, a loss of signal may occur and/or damage to a component if both inputs are utilized. The maximum signal level is +26dBu. 3 Specifications Frequency Response, process mode:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Program controlled bypass mode: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Hz to 30kHz Signal to noise ratio (balanced): . . . . . . . . . . . . . . . 114dB Process in, 126dB Process out THD: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . less than 0. 1% at -10dBu input, Process in/out Maximum Input:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +18dBu (may vary due to control settings) Input Impedance: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10k Ohms Nominal Input Level: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10dBu +4dBu Output Impedance: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 Ohms Nominal Output Level: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10dBu +4dBu Maximum Output Level: . . . . . . . . . . . . . . . . . . . . . . . . . . . +20dBu unbalanced, +26dBu balanced * 0dBu = 0. 775mVrms Terminations/Connections (Rear Panel): . . . XLR/1/4" TRS Phone Jacks Power Requirements: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U. S. model: 100-120VAC, 50/60Hz, 10 WATTS All other models: 200-240VAC, 50/60Hz, 10 WATTS Fuse: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace with the same type FASTBLOW fuse U. S. All other models: 250Vac, . 125A Fastblow type fuse Dimensions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Standard 1U single rack space, 19"(W) x 5. 75"(D) x 1. 7"(H) Shipping Weight: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4. 5 lbs. (2. 5kgs) Note: Due to continuing product improvement, specifications and design are subject to change without notice. General Operation THE BBE 362XL 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 362XL 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 362XL. 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 362XL may be utilized in a number of different environments and its results may vary accordingly. If unit has been purchased outside the US, please contact your national distributor. Warranty Warranty registration of the unit to BBE Sound, Inc. [. . . ] With the Lo Contour control at minimum, (fully C. C. W. ), DVM should read -9. 5dBu, (+/- 0. 5dBu). With the Lo Contour control at maximum, (fully C. W. ), DVM should read -1. 5dBu, (+/- 0. 5dBu). BYPASS TEST: (NOTE: Lo Contour and Process controls at maximum) 1. With the Process in, the DVM should read -12dBu (+/- 0. 5dBu) and the process LED should illuminate green With the Process out, the DVM should read -10. 5dBu (+/- 0. 5dBu) and the process LED should illuminate red. CLIP INDICATOR TEST: 1. Note: When both channels are driven, the clip indicator will turn on at +15dBu. [. . . ]