® In today’s recording and sound reinforcement environments, the need for multiple channels of high quality, easy to use compression is growing rapidly. The new dbx 1046 is designed to provide the audio professional with just that: 4 channels of great sounding dbx compression for a variety of applications. Incorporating the industry standard dbx designs and the latest available manufacturing techniques, the dbx 1046 provides pristine sonic quality with that clas- sic dbx sound. The 1046 provides 4 channels of smooth classic dbx OverEasy® or hard knee compression that are perfectly suited for use on individual tracks of your multitrack recorder, and in virtually all applications the separate channels can be individually interfaced and used for entirely independent purposes. Additionally the newly developed PeakStopPlus™ is ideal for protecting your system from the oppressive peaks that can take out valuable drivers in your sound reinforcement rig or studio monitors. All four channels have the following controls: Threshold - allows you to set the level at which the compressor starts affecting the gain OverEasy® - allows you to select between soft compression for overall gain control or hard-knee compression based on the characteristics of the original dbx160. Ratio - allows you to set the slope of gain reduction affecting the signal over the threshold level. Input/Output Meter - allows you to set the meter to check the input and output levels for maximum signal-to-noise ratio and best level matching. Output Gain - allows you to add make-up gain or to adjust the output level for that channel to match the next device’s input gain. Bypass - hard wire bypass allows you to hear how the compressor is affecting your signal. PeakStopPlus™ - allows you to set the maximum signal level you want to pass through this channel. While it’s vir- tually impossible to eliminate distortion, the PeakStopPlus™ circuit does it gracefully and effectively with minimal distortion. Stereo Link - allows you to link channels 1&2 and 3&4 for two channels of true stereo compression. All four channels feature balanced gold plated XLR and 1/4" inputs and outputs, and switchable +4dBu or -10dBV operating level to interface each individual channel with any other device. So whether you need to control the level, placement in the mix, or overall characteristics of 4 independent signals or control the gain leveling on a couple of stereo pairs, the dbx1046 is for you. • 4 independent channels of operation, stereo linkable • Precision metering of input level, output level, and in two pairs. gain reduction • PeakStopPlus™ limiting control for setting maximum • Dual True stereo or quad mono operation allowable level regardless of compressor settings. • Switchable +4dBu or -10dBV operation per channel • Switchable OverEasy® or hard-knee compression. • Selectable Auto (classic dbx) or manual (variable 8760 S. Sandy Pkwy. Attack and Release) compression Sandy, Utah 84070 Phone (801) 568-7660 • Differentially balanced gold-plated XLR and 1/4” Fax (801) 568-7662 inputs and outputs. Int’l Fax (801) 568-7583 customer@dbxpro.com • True RMS level detection http://www.dbxpro.com A Harman International Company 18-1689-C 01/99 GAIN REDUCTION dB INPUT / OUTPUT LEVEL dBu THRESHOLD GAIN REDUCTION dB INPUT / OUTPUT LEVEL dBu THRESHOLD GAIN REDUCTION dB INPUT / OUTPUT LEVEL dBu THRESHOLD GAIN REDUCTION dB INPUT / OUTPUT LEVEL dBu THRESHOLD 30 25 20 15 10 6 3 1 -24 -18 -12 -6 0 +6 +12 +18 + 30 25 20 15 10 6 3 1 -24 -18 -12 -6 0 +6 +12 +18 + 30 25 20 15 10 6 3 1 -24 -18 -12 -6 0 +6 +12 +18 + 30 25 20 15 10 6 3 1 -24 -18 -12 -6 0 +6 +12 +18 + CHANNEL ONE CHANNEL TWO CHANNEL THREE CHANNEL FOUR 3:1 0 3:1 0 3:1 0 3:1 0 -10 +12 -10 +12 -10 +12 -10 +12 -20 0 2:1 4:1 +10 +14 -20 0 2:1 4:1 +10 +14 -20 0 2:1 4:1 +10 +14 -20 0 2:1 4:1 +10 +14 1046 -10 +10 -10 +10 -10 +10 -10 +10 Quad +6 +20 +6 +20 +6 +20 +6 +20 -30 +10 1.5:1 8:1 -30 +10 1.5:1 8:1 -30 +10 1.5:1 8:1 -30 +10 1.5:1 8:1 Stereo Stereo Compressor/ PROFESSIONAL PRODUCTS OverEasy I/O Meter Bypass Couple OverEasy I/O Meter Bypass OverEasy I/O Meter Bypass Couple OverEasy I/O Meter Bypass Limiter -40 +20 1:1 :1 -20 +20 +4 OFF -40 +20 1:1 :1 -20 +20 +4 OFF -40 +20 1:1 :1 -20 +20 +4 OFF -40 +20 1:1 :1 -20 +20 +4 OFF dBu dB dBu dBu dB dBu dBu dB dBu dBu dB dBu THRESHOLD RATIO OUTPUT GAIN PeakStopPlus THRESHOLD RATIO OUTPUT GAIN PeakStopPlus THRESHOLD RATIO OUTPUT GAIN PeakStopPlus THRESHOLD RATIO OUTPUT GAIN PeakStopPlus COMPRESSOR LIMITER COMPRESSOR LIMITER COMPRESSOR LIMITER COMPRESSOR LIMITER 1046 QUAD COMPRESSOR GAIN REDUCTION dB INPUT / OUTPUT LEVEL dBu THRESHOLD GAIN REDUCTION dB INPUT / OUTPUT LEVEL dBu THRESHOLD GAIN REDUCTION dB INPUT / OUTPUT LEVEL dBu THRESHOLD GAIN REDUCTION dB INPUT / OUTPUT LEVEL dBu THRESHOLD 30 25 20 15 10 6 3 1 -24 -18 -12 -6 0 +6 +12 +18 + 30 25 20 15 10 6 3 1 -24 -18 -12 -6 0 +6 +12 +18 + 30 25 20 15 10 6 3 1 -24 -18 -12 -6 0 +6 +12 +18 + 30 25 20 15 10 6 3 1 -24 -18 -12 -6 0 +6 +12 +18 + CHANNEL ONE CHANNEL TWO CHANNEL THREE CHANNEL FOUR -10 3:1 0 +12 -10 3:1 0 +12 -10 3:1 0 +12 -10 3:1 0 +12 -20 0 2:1 4:1 -20 0 2:1 4:1 -20 0 2:1 4:1 -20 0 2:1 4:1 +10 +14 +10 +14 +10 +14 +10 +14 1046 -10 +10 -10 +10 -10 +10 -10 +10 Quad -30 +10 1.5:1 8:1 +6 +20 -30 +10 1.5:1 8:1 +6 +20 -30 +10 1.5:1 8:1 +6 +20 -30 +10 1.5:1 8:1 +6 +20 Stereo Stereo Compressor/ PROFESSIONAL PRODUCTS OverEasy I/O Meter Bypass Couple OverEasy I/O Meter Bypass OverEasy I/O Meter Bypass Couple OverEasy I/O Meter Bypass Limiter -40 +20 1:1 :1 -20 +20 +4 OFF -40 +20 1:1 :1 -20 +20 +4 OFF -40 +20 1:1 :1 -20 +20 +4 OFF -40 +20 1:1 :1 -20 +20 +4 OFF dBu dB dBu dBu dB dBu dBu dB dBu dBu dB dBu THRESHOLD RATIO OUTPUT GAIN PeakStopPlus THRESHOLD RATIO OUTPUT GAIN PeakStopPlus THRESHOLD RATIO OUTPUT GAIN PeakStopPlus THRESHOLD RATIO OUTPUT GAIN PeakStopPlus COMPRESSOR LIMITER COMPRESSOR LIMITER COMPRESSOR LIMITER COMPRESSOR LIMITER CHANNEL FOUR CHANNEL THREE CHANNEL TWO CHANNEL ONE OUTPUTS INPUTS OUTPUTS INPUTS OUTPUTS INPUTS OUTPUTS INPUTS OPERATING +4 dBu OPERATING +4 dBu OPERATING +4 dBu OPERATING +4 dBu LEVEL -10 dBV LEVEL -10 dBV LEVEL -10 dBV LEVEL -10 dBV PROFESSIONAL PRODUCTS MANUFACTURED UNDER ONE OR MORE OF THE FOLLOWING U.S. PATENTS 4,234,804 4,316,107 4,329,598 4,331,931 4,377,792 4,403,199 4,409,500 4,425,551 4,434,380 4,454,433 4,471,324 4,473,793 OTHER PATENTS PENDING The compressor/limiter shall have four identical chan- Input Function Switches Connectors: XLR and 1/4" TRS (Pin 2 and OverEasy®: Activates the OverEasy® nels, each with an audio frequency response of 20Hz to tip hot) compression function. 25kHz, +0/-0.5dB , an electronically floating balanced Type: Electronically balanced/unbal- I/O Meter: Switches between monitoring anced, RF filtered input and output levels input impedance of not less than 50kΩ, balanced and Impedance: Balanced > 40 kOhm, unbal- on the Input/Output Level meter. anced >20 kOhm Bypass: Activates the direct input-to- 20kΩ unbalanced, and a maximum input level of not less Max Input Level: > +22 dBu balanced or unbal- output hard-wire bypass. than +22dBu and 1/4" TRS and XLR connectors. The anced Operating Level CMRR: Typically >50 dB at 1 kHz (rear panel): Switches the nominal operat- output shall have an impedance of no more than 30Ω Output ing level between -10 dBV with a maximum output level of not less than +22dBm Connectors: XLR and 1/4" TRS (Pin 2 and and +4 dBu simultaneously tip hot) for both input and output lev- balanced and +20dBm unbalanced, into a minimum load Type: Servo-balanced/unbalanced, els. RF filtered impedance of 600Ω and 1/4” TRS and XLR type con- Impedance: Balanced 30 Ohm, unbal- ST Link: Links channels in stereo nectors. anced 15 Ohm pairs. Channels One Max Output Level: > +22 dBm balanced, > +20 and Three become the mas- dBm unbalanced ter channels. Total Harmonic Distortion plus Noise shall be less than System Performance Indicators Bandwidth: 20 Hz to 20 kHz, +0/-0.5 dB Gain Reduction Meter: 8 segment LED bar graph at 0.1% with any amount of compression (up to 40dB) at Frequency Response: 0.35 Hz to 90 kHz, +0/-3 dB 1, 3, 6, 10, 15, 20, Noise: < -96 dBu, unweighted, 22 25, and 30 dB 1kHz and Intermodulation Distortion shall be less than kHz measurement bandwidth Input/Ouptut Meter: 8-segment LED bar graph at 0.1% SMPTE. The unit shall have an Equivalent Input Dynamic Range: > 118 dB, unweighted -24, -18, -12, -6, 0, THD+Noise: 0.008% typical at +4 dBu, 1 +6, +12, and +18 dBu Noise level of not more than -96dBu unweighted, and a kHz unity gain PeakStop®: 1 LED to indicate PeakStop® dynamic range of not less than 118dB. Output gain 0.08% typical at +20 dBu, 1 limiting kHz, unity gain Function Switches: LED indicator for each front- adjustment shall be variable from -20 to +20dB. The < 0.1% any amount of com- panel switch pression up to 40 dB, 1 kHz Options compression threshold range shall be variable from -40 to IMD: < 0.1% SMPTE Output Transformer +20dBu and compression ratio shall be variable from 1:1 Interchannel Crosstalk: < -80 dB 20 Hz to 20 kHz Per Channel: Jensen® JT-123-dbx or JT- Stereo Coupling: True RMS Power Summing 11-dbx, BCI™ RE- to ∞:1. The peak limiter threshold range shall be variable Compressor 123-dbx or RE-11-dbx from 0 to +24dBu. The compressor attack and release Threshold Range: -40 dBu to +20 dBu Power Supply Ratio: 1:1 to ∞:1 Operating Voltage: Switchable: 100-120 VAC 50- times shall be program dependent. The compression ratio Threshold Characteristic: Selectable OverEasy® or 60 Hz or 200-240 VAC 50/60 hard knee Hz characteristic shall be selectable for either the hard or soft Attack/Release Characteristic: AutoDynamic™ Power Consumption: 20 Watts knee curve type with a maximum compression of no less Attack Time: Program-dependent Fuse: 100-120 VAC:250 mA Slow Release Time: Program-dependent Blow than 60dB. All input and output signal connections shall Output Gain: -20 to +20 dB 200-240 VAC: 125 mA Type T be via the rear panel. The channel-to-channel stereo links Limiter Mains Connection: IEC receptacle Threshold Range: 0 dBu to +24 dBu (off) shall be of the true RMS summing type. Channel 1 shall Ratio: ∞:1 Physical Limiter Type: PeakStopPlus™ two-stage Dimensions: 1.75"Hx19"Wx9"D link to Channel 2 and Channel 3 shall link to Channel 4 limiter (4.4cmx48.3cmx20.1cm) with channels 1 and 3 becoming the masters. The unit Stage 1: PeakStop® brickwall limiter Weight: 5.2 lbs. (2.4 kg) Attack Time: Zero Shipping Weight: 7.6 lbs. (3.5 kg) shall have the following front panel switches for each Release Time: Zero channel, with each switch incorporating an integral LED Stage 2: Predictive intelligent program limiter to signal selection of that switch: OverEasy, I/O Meter, Attack Time: Program-dependent Release Time: Program-dependent and Bypass. There shall also be one Stereo Link switch Note: Specifications subject to change. for each pair of channels. Each channel shall have the fol- lowing identical controls: compression Threshold, com- pression Ratio, compression Output Gain, limiter Threshold; and the following identical metering and indicator LEDs for each channel: Gain Reduction (8 LEDs), Input or Output Level (8 LEDs), peak limiter active. There shall be a rear panel switch for each channel to select nominal input and output operating levels at -10dBV or +4 dBu. The unit shall be capable of accepting one compatible audio transformer installed for each channel. The power requirements shall be 100-120VAC 50/60Hz or 200- 240VAC, 50/60Hz, 20W, via a detachable IEC type AC cable. The size of the unit shall be 1.75" x 19" x 7.9" (4.4cm x 48.3cm x 20.1cm) with a net weight of 5.2 lbs (2.4 kg) and a shipping weight of 7.6 lbs (3.5 kg). The 1U high, full rack width 4 channel compressor/limiter shall be a dbx 1046. 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 • Int’l Fax (801) 568-7583 customer@dbxpro.com • http://www.dbxpro.com A Harman International Company