PSB CWA-1 Installation Manual
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PSB CWA-1 Installation Manual

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Installation Guide
CWA-1

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Summary of Contents for PSB CWA-1

  • Page 1 CustomSound series Installation Guide CWA-1...

  • Page 2: Table Of Contents

    • What You Should Know • A Little Background • Input and Outputs • CWA-1 Block Diagram • Connecting to the CWA-1 Using Stereo Preamp Line-Level Outputs • Connecting the CWA-1 Using a Subwoofer/LFE Output X. Setup and Calibration • Adjusting the Parametric Equalizer •...

  • Page 3: Important Safety Instructions

    I. Important Safety Instructions Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

  • Page 4: Introduction

    A special feature is a parametric equalizer to help eradicate any of the typical room related problems. The CWA-1 is attractively housed in a standard 17 inch wide chassis that can be adapted to a compact 2 space x 19-inch rack enclosure. Auto on/off and 12 volt amplifier switching and easily accessible controls make the CWA-1 subwoofer amplifier as convenient to use as it is exciting to listen to.

  • Page 5: Quick Start

    VI. Quick Start If you cannot wait to hear your new PSB subwoofer amplifier: Turn off all other components, and follow one of the connection diagrams. Connect the supplied power cord to the AC power socket. Set the PSB subwoofer amplifier volume control to its minimum position (counterclockwise), then plug the amplifier into an active AC outlet.
  • Page 6 In-Wall Subwoofer Placement The CWA-1 can be used with nearly any passive subwoofer. This includes the PSB CWS8 in-wall subwoofer as well as future models, both in-wall and enclosed. Obviously an in-wall subwoofer must be located on the wall surface while a conventional subwoofer allows more freedom of location.
  • Page 7 can—if you like—deal with that both with changes in placement or in the position of your sub's level control (or, less likely but possible, the crossover frequency chosen). We say “if you like” because there is no such thing as too much bass for some listeners, and we don't want to be dogmatic.

  • Page 8: Front Panel Controls

    VIII. Controls, and Connections Front Panel Controls...

  • Page 9: Back Panel Control And Connections

    Back Panel Controls and Connections...

  • Page 10: Accessing The Fuses

    If there is still any doubt, check the fuses with a multi-meter. Replace with the same type fuses as required. The replacement fuse for the CWA-1 is a T2.5A 250V, Size: 5x20mm. Reinstall the fuse cover panel and the two Phillip screws. Return the unit to the upright position and reconnect the AC cord.

  • Page 11: Connecting Audio Components To The Cwa-1 And Setup

    AV processor or receiver. Whatever the preceding piece of equipment we will want to get an isolated bass signal from it to drive the CWA-1 or get 1 or 2 full range channels from the processor that we can filter the bass from.

  • Page 12: Input And Outputs

    2 subwoofers. The two red (+) and black(-) binding posts are in parallel. The CWA-1 will drive down to 2 ohms so it is permissible to connect two 4 Ohm subwoofers in parallel through these posts for a combined...

  • Page 13: Cwa-1 Block Diagram

    CWA-1 Block Diagram...

  • Page 14: Connecting To The Cwa-1 Using Stereo Preamp Line-Level Outputs

    Connecting to the CWA-1 Using Stereo Preamp Line-Level Outputs Connecting from: Stereo preamp or receiver Benefits: Subwoofer operation with all sources Challenges: Bass to the main speakers not limited Receiver CWS8 Pre-amplifier Pre-amp Out Power Amp Input/Main In Speaker R...

  • Page 15: Connecting The Cwa-1 Using A Subwoofer/Lfe Output

    Connecting to the CWA-1 Using a Subwoofer/LFE Output Connecting from: Dolby Pro Logic Digital 5.1, 7.1 Receiver or Processor Benefits: Simplest Connection Challenges: Some receivers may not send information to this output when in stereo mode while playing back CDs, records, VCR,...

  • Page 16: Setup And Calibration

    (boost or cut) of equalization. The CWA-1's equalizer, as well as its other controls, can be set by ear or via a spectrum analyzer. Instructions will be given for both methods in the following...

  • Page 17: Setting Up The Cwa-1 By Ear

    FREQUENCY knob first. You may use the frequency numbers marked on the CWA-1 but confirm that they are the best setting by swinging the setting a bit above and below while watching the spectrum analyzer. Start with the Q set to maximum and the boost/cut control at maximum (+10 if you intend to fill in a dip, - 10 if you want to fix a peak.) Slowly turn the frequency control up and down.
  • Page 18 frequencies. The right settings for both will give a proper balance between lower bass frequencies (bass “weight”) and upper bass frequencies (“sock” or “kick”). Adjust to a sound you like but remember that, in the long run, it will be best to have a setting that gives a natural amount of bass rather than an exaggerated amount.

  • Page 19: In Case Of Problems

    See your dealer if you require service. PSB dealers are equipped to handle almost all problems. If you have moved since your purchase, the nearest authorized PSB dealer should be able to help you. You may locate your nearest PSB authorized dealer on-line at www.psbspeakers.com/r/list.html. If the problem is not resolved, please contact us, providing the Model name, Serial Number, date of purchase, dealer name, and a full description of the problem.

  • Page 20: Specifications

    XII. Specifications Amplifier Power Continuous 200 Watts into 4 ohms, 300 Watts into 2 ohms Dynamic 350 Watts into 4 ohms, 500 Watts into 2 ohms Crossover Frequency Range 55 to 150 Hz Filter 24 dB/Octave Lowpass Parametric Equalizer Boost/ Cut -10 dB to +10 dB Bandwidth 0.15 Octave to 1.05 Octave...
  • Page 21 PSB Speakers 633 Granite Court Pickering, Ontario L1W 3K1 CANADA www.psbspeakers.com 888-772-0000 (North America) 905-831-6555 (International) Fax: 905-837-6357...

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