¨ MAX SYNTHESIZED FREQUENCY The disco boom of the 70Õs was fueled by the throbbing bass beat of dbx Subharmonic Synthesizers in discos around the world. During the 80Õs, patented dbx Subharmonic Synthesis was the secret weapon used by mobile DJÕs and film and sound professionals to produce an impact unavailable from any other deviceÑunique because the dbx process actually produces a new, Waveform Modeledª bass note, exactly an octave below the bass in the original audio. The dbx 120XP Subharmonic Synthesizer has been specially optimized by dbx engineers for the needs of audio professionals. Its two separate bands of bass synthesis provide the best combination of smoothness and control, and the independent Low Frequency Boost circuit is designed to get the most out of high-performance low frequency speaker systems. Flexible system interfacing is achieved by providing main outputs which can be full range (including synthesis) or high frequency only, along with a separate subwoofer output with its own level control. The 120XPÕs patented subharmonic synthesis process actually builds the synthesized waveform using the waveshape of the original bass material. Unlike other attempts at bass synthesis, the dbx process produces smooth, musical low frequencies that don't interfere with mid and high-band information, even when maximum synthesis and boost are applied. The result is a low-end punch that people really feel, even at system levels that won't destroy sound equipment or damage hearing. MAX MAX MAX MAX MIN MIN MIN MIN CROSSOVER MIN SUBWOOFER LF BOOST SUBHARMONICS 26Hz-36Hz 36Hz-56Hz ¥ Individual control for two ranges of subharmonic frequencies ¥ Separate Low Frequency Boost circuit ¥ Separate Subwoofer Output ¥ Balanced inputs and 1/4" jacks for all connections ¥ Front panel LEDs that show crossover status and synthesis activity ¥ Patented circuitry ensures that mid and high frequencies are not affected ¥ Built-in crossover with choice of 80Hz or 120Hz crossover point Enhance bass audio material for use in a variety of professional applications such as: ¥ Nightclub and dance mixing ¥ DJ mixing ¥ Theater and Film sound ¥ Music Recording ¥ Live Music Performance ¥ Broadcasting ¥ Aerobics POWER BYPASS 8760 S. Sandy Pkwy. Sandy, Utah 84070 Phone (801) 568-7660 Fax (801) 568-7662 IntÕl Fax (219) 462-4596 customer@dbxpro.com http://www.dbxpro.com A Harman International Company 120XP SUBHARMONIC SYNTHESIZER POWER BYPASS CROSSOVER SYNTHESIZED FREQUENCY 120XP SUBHARMONIC SYNTHESIZER MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX SUBWOOFER LF BOOST SUBHARMONICS 26Hz-36Hz 36Hz-56Hz The Subharmonic Synthesizer shall have a frequency response of 25Hz-20kHz ±0.5dB and 15Hz to 90kHz +0, -3dB. The unit shall have 1/4" phone jack electronically balanced inputs with an impedance of not less than 18.5k½ and a maximum input level of not less than +20dBu for each of two channels. The unit shall have 1/4" phone jack outputs with an impedance of not more than 47½ and the maximum output level shall be not less than +20dBu into 600½. The unit shall have a single 1/4" phone jack output for signal to be sent to a subwoofer. The Subharmonic Synthesizer shall have a total harmonic distortion level (no synthesis) of 0.05% and an intermodulation distortion level (IHF or SMPTE, no synthesis) of 0.05%. The equivalent input noise shall be no more than -93dBu and the output noise (either output) shall be no more than -88dBu with controls set to maximum. The unit shall be equipped with the following front-panel controls: 26-36Hz and 36-56Hz Band Synthesis Level, Subharmonics, Low Frequency Select, Crossover in/out. The unit shall have Crossover, Synthesis, Power and Bypass indicators. The dynamic range shall be not less than 113dB and the synthesis frequency range shall be 26-56Hz (from 54-110Hz input signal). The crossover shall be 12dB/octave high pass (3dB @ 80Hz or 120Hz); 6dB/octave derived low pass, phase-coherent (unity-sum). The power requirement shall be 96-125VAC; 50/60Hz. The size of the unit shall be 1.75"x19"x6.2" (4.5cm x 48.3cm x 15.75cm) with a net weight of 4.75 lbs (2.2kg) and a shipping weight of 8 lbs (3.7kg.) The Subharmonic Synthesizer shall be a dbx 120XP. Frequency Response: (no synthesis, full-range mode) Input Impedance: Balanced or Unbalanced Maximum Input Level: Output Impedance: Maximum Output Level: Connector Type: THD: (no synthesis, either output) Intermodulation Distortion: (no synthesis, either output) (IMD) IHF or SMPTE 0.05% Equivalent Input Noise: -93dBu, unweighted Output noise: (full range output) Front Panel Controls: 26-36Hz and 36-56Hz Band Synthesis Level, Subharmonics, Low Frequency Boost, Subwoofer Output Rear Panel Controls: Crossover Frequency Select, Crossover in/out Indicators: Power, Crossover, Bypass -88dBu, controls@max. 25Hz-20kHz±0.5dB, 15Hz-90kHz +0, -3dB ³18.5k½ +20dBu 47½ +20dBu into 600½ 1/4" TRS Phone Jack 0.05% Metering: Dynamic Range: Synthesis Frequency Range: Synthesis activity (3 LEDs per band) 113dB 26-56Hz (from 54110Hz input signal) Crossover: 12dB/octave high pass (-3dB @ 80 Hz or 120Hz); 6dB/octave derived low pass. Phase-coherent (unitysum) Power Requirements: 96-125VAC; 50/60Hz DO Version, 180-250VAC; 50/60Hz EU Version Dimensions: 1.75"x19"x6.2" (4.5cm x 48.3cm x 15.75cm) Rack Space: 1 Rack Unit Weight: Net/Shipping: 4.75 lbs/8 lbs 2.2kg/3.7kg dbx engineers are constantly working to improve the quality of our products. Specifications are, therefore subject to change without notice. ® FOR MORE INFORMATION CONTACT: dbx Professional Products 8760 S. Sandy Pkwy. Sandy, Utah 84070 Phone (801) 568-7660 Fax (801) 568-7662 IntÕl Fax (219) 462-4596 customer@dbxpro.com http://www.dbxpro.com ...