User manual ROLLS RP221

[. . . ] What this means to you is the elements of your sound are fanned out like a deck of cards, making each sound more audible and distinct, reducing the need for high volume and radical equalizer adjustment. LIMITED WARRANTY This product is warranted to the original consumer purchaser to be free from defects in materials and workmanship under normal installation, use and service for a period of one (1) year from the date of purchase as shown on the purchaser's receipt. The obligation of Rolls Corporation under this warranty shall be limited to repair or replacement (at our option), during the warranty period of any part which proves defective in material or workmanship under normal installation, use and service, provided the product is returned to Rolls Corporation, TRANSPORTATION CHARGES PREPAID. Products returned to us or to an authorized Service Center must be accompanied by a copy of the purchase receipt. In the absence of such purchase receipt, the warranty period shall be one (1) year from the date of manufacture. [. . . ] 12 VDC (Rolls Model PS27) 5 2 FRONT PANEL DESCRIPTION CONNECTION Connect your RP221 to the signal source you want processed such as a DJ mixer or Karaoke unit output for example. Connect the High Outputs to an amplifier and speaker combination designed to receive signals above at least 140 Hz. Connect the Sub Outputs to an amplifier/speaker combination designed to receive signals below 140 Hz. Remember to consult the speaker manufacturers owners manuals for proper crossover settings. INPUT LEVEL 0 BOTTOM 0 DEFINITION 0 40 XOVER FREQ 55 80 90 100 120 130 25 Hz 140 SUB OCTAVE SYNTH LEVEL SUB LEVEL ACTIVE 30 27 dB 20 clip - + - + 0 10 0 10 pwr RP221 INPUT LEVEL: Adjusts the amount of input signal to the RP221. CLIP LED: Indicates overload in the input circuitry. If this LED lights, the INPUT LEVEL should be reduced. ACTIVE switch: When pressed in, the sonic exciter and sub-synth circuits are engaged. BOTTOM: Controls the low frequency cut/boost (flat or no cut/boost is at about 11 O'clock). There is a 0 to 1/2 turn spectrum spread from mid-range to bass with this control as well as amplitude control. DEFINITION: Controls the amount of sonic clarity (sibilance) and sound spread. Setting it at 0 is flat response and minimal spread, 10 is maximum spread and definition. XOVER FREQUENCY: Sets the frequency point at which the high and low frequencies are split. The frequencies above the crossover point are sent to the High Outputs, the frequencies below this point are sent to the Sub Outputs. SUB OCTAVE SYNTH LEVEL: Adjusts the amount of signal coming from the Sub-Octave synthesizer circuitry. The Sub-Octave Synth is a special circuit that divides the low frequency signal (after the crossover) in half, and produces a sub-octave harmonic. This level control then mixes the resulting signal with the Sub Level signal. SUB LEVEL: Adjusts the output level from the Sub Outputs. This includes the low frequencies after the crossover, and the added Sub Octave Synth signals. [. . . ] Increasing the amount of the Sub Octave Synthesizer adds extreme low frequencies to the sound. With program material playing, slowly and carefully increase the Sub Octave Synth Level until you hear the desired amount of low-end enhancement. Finally, adjust the Sub Level control to match the level of the High Frequency output for the desired mix of frequencies. REAR PANEL DESCRIPTION MADE IN USA SERIAL NUMBER 221- LEFT MODEL RP221 RIGHT SUB OUT HIGH OUTPUT LOOP THRU INPUT 12 VDC 12 VDC: Connects to the Rolls PS27 (12 VDC, 150 mA, tip negative) power supply. SUB OUT: Mono summed, dual RCA jacks containing the low frequencies (from the crossover frequency and below) portion of the signal. [. . . ]