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Related Manuals for dbx 166xs
Summary of Contents for dbx 166xs
- Page 1 User Manual Professional Audio Equipment...
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Page 2: Important Safety Information
IMPORTANT SAFETY INFORMATION WARNING FOR YOUR PROTECTION READ THE FOLLOWING: KEEP THESE INSTRUCTIONS HEED ALL WARNINGS FOLLOW ALL INSTRUCTIONS THE APPARATUS SHALL NOT BE EXPOSED TO DRIPPING OR SPLASHING LIQUID AND NO OBJECT FILLED WITHI LIQUID, SUCH AS VASES, SHALL The symbols shown above are internationally accepted symbols that warn of BE PLACED ON THE APPARATUS. -
Page 3: Electromagnetic Compatibility
Sandy, Utah 84070, USA Date: November 1, 2010 European Contact: Your local dbx Sales and Service Office or If you want to dispose this product, do not mix it with general household waste. There is a separate collection system for used electronic products in accordance with legislation that Harman Music Group requires proper treatment, recovery and recycling. -
Page 4: Table Of Contents
166xs Table of Contents Section 1- Introduction ......1 1.1 Inspection ........1 1.2 Service Contact Info ....... 2 1.3 Warranty ........3 Section 2- Getting Started ...... 4 2.1 Rear Panel Connections ....4 2.2 Front Panel Connections ....5 Section 3 - Making Connections .... -
Page 5: Section 1- Introduction
Stereo or Dual Mono operation of gating, compression and peak limiting. OverEasy®/Hard Knee Selection - allows selection between our famous OverEasy compression curve and the classic “Hard Knee” curve popularized by the original dbx 160, 161 and 162. Expander/Gate Circuit - with variable release time and +15dBu maximum threshold. -
Page 6: Service Contact Info
After expiration of the warranty, a reasonable charge will be made for parts, labor, and packing if you choose to use the factory service facility. In all cases, you are responsible for transportation charges to the factory. dbx will pay return shipping if the unit is still under warranty. -
Page 7: Warranty
In no event shall dbx or its dealers be liable for special or consequential damages or from any delay in the performance of this warranty due to... -
Page 8: Section 2- Getting Started
This receptacle accepts an IEC-type power cord (as shipped with the unit). Plug the cord into the unit and mains power. Note that the 166xs does not have a power switch. It is recommended that the 166xs be “On” at all times. Power consumption is low. If you do not plan to use the 166xs for an extended period of time, unplug it. -
Page 9: Front Panel Connections
The RING acts as a Send, carrying a buffered version of the signal present at the 166xs INPUT jack, at an impedance of 2k . The TIP acts as a Return for equipment to feed the 166xs detector circuitry, such as an equalizer for de-essing or frequency-sensitive gating/ compression. - Page 10 The green BELOW LED is On when the signal is below threshold and the red ABOVE LED is On when the signal is above threshold. When the 166xs is switched to OverEasy mode, the yellow LED is On when the signal is in the OverEasy region (See Figure 2).
- Page 11 (dB) by which the input signal must change in level to produce a 1dB increase in the signal level at the output of the 166xs. A setting of 2:1 indicates an input:output ratio wherein a 2dB increase in signal (above threshold) will produce a 1dB increase in output signal.
- Page 12 AUTO function duplicates the “classic dbx sound” of the 166A which is a standard in the industry. OUTPUT GAIN Control Adjust this control to vary the amount of fixed gain (up to ±20dB) in the 166xs output amplifier stage. The OUTPUT GAIN control does not interact with the threshold of compression.
- Page 13 LIMITER Section PEAKSTOP LEVEL Control and LED This control allows you to set the maximum peak output level of the 166xs regardless of any other control. PeakStop comes after the compression, gating and output gain circuitry; this provides for an absolute limit to be put on the peak excursions at the output. PeakStop works instantaneously;...
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Page 14: Section 3 - Making Connections
Section 3 - Making Connections 3.1 Basic Connections The 166xs has balanced inputs and outputs, and can be used with any line-level device. Some common examples include: mixing consoles, musical instruments, patch bays and other signal processors. For more specific cabling information, refer to Installation Considerations, page 12. -
Page 15: Specific System Connections
EQ. The RETURN goes to the output of the EQ; (2) use a Y-cable to feed the audio source to both the 166xs INPUT and the equalizer input; (3) feed the signal to one of the 166xs INPUT jacks and use the compressor channel’s parallel INPUT jack to drive the... -
Page 16: Installation Considerations
Severe damage to system components may result. Patch Bay In the studio, the 166xs may be connected to a patch bay (such as a dbx PB-48) to allow it to be used anywhere in the studio system. If your studio is not fully balanced, you must ground the unused balanced output conductor: XLR pin (either pin 2 or 3) or the ring of a 1/4”... - Page 17 XLR pin 2, the RING (-) is wired to pin 3, and the SLEEVE (shield) is wired to pin 1. Note that pins 2 and 3 are the reverse of certain older dbx and other manufacturer’s equipment, but if the same connection is used at both the input and the output, the signal will be correctly polarized (“in phase”).
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Page 18: Section 4 - Operating Notes
166xs INPUT. Then key the gate with a signal from the kick drum (connected to the SIDECHAIN INSERT - adjust... -
Page 19: Basic Compressor Applications
To smooth out these variations, start with the 166xs in OverEasy mode (OVEREASY button In) with a medium attack time and a fairly slow release time and adjusted for a low to medium compression RATIO (e.g., 4:1). - Page 20 Split the drum signal, sending one channel directly to the 166xs INPUT and the other channel to an equalizer (e.g., dbx’s 2 Series, 12 Series or 20 Series Graphic Equalizer). Then connect the equalizer’s output to the 166xs SIDECHAIN INSERT. The...
- Page 21 Use phrasing to give the part some intensity. An equalizer (e.g., a dbx 2 Series, 12 Series or 20 Series Graphic Equalizer) or a vocal effects device (e.g., reverb, delay, distortion) can be added to further define the performance.
- Page 22 If the 166xs is placed before the EQ (equalizer), for example, a potentially damaging boost in the EQ won’t be seen by the 166xs and the speakers may be damaged. (see Multi-way speaker systems, page 19). For maximum sound pressure levels, large sound reinforcement systems frequently use a separate compressor on each output of the electronic crossover(s).
- Page 23 The converse of the above EQ technique may be used: dipping the equalizer bands causes any sound with dominant energy in the affected register to pull the level up because the 166xs will detect a need for less compression.
- Page 24 By inserting an equalizer in the Sidechain path to the 166xs, it can be made more sensitive to frequencies in the range handled by the sensitive drivers. The system can then be run at higher levels and will only be dropped back when damaging signals are present.
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Page 25: Section 5 - Technical Support/Factory Service
Each 166xs is designed, assembled, tested, and calibrated at the factory and should require no internal adjustment of any type throughout the life of the unit. We recommend that your 166xs be returned to the factory only after referring to the manual and consulting with Customer Service. -
Page 26: Section A - Appendix
166xs Section A Appendix Section A - Appendix A.1 Technical Specifications NOTE: 0dBu =0.775Vrms INPUTS (1/4” TRS Phone XLR): Floating Balanced; XLR: Pin 2 and TIP HI Impedance: >50kΩ balanced, >25kΩ unbalanced Maximum Level: +24dBu, Balanced or Unbalanced CMRR >40dB at 1kHz, typically >55dB... -
Page 27: Wiring Diagrams
166xs Section A Appendix PHYSICAL: Dimensions (H x W x D): 1.75” x 19” x 6.75” (4.45 cm x 48.2 cm x 17.15 cm) Rack Space: 1 Rack Unit (1U High) Net Weight: 5.05 lbs. (2.29 kg) Shipping Weight: 7.20 lbs. - Page 28 Int’l Fax: (801) 568-7583 Questions or comments? Contact us at www.dbxpro.com Printed in China 18-0807-A...