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Parasound TDQ-150 Owner's Manual

Room equalizer
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Congratulations on your purchase of this precision audio component and thank you for choosing
Parasound. We are sure that you will find the R/EQ-150 to be a very useful problem solving tool. Even
if you have used an equalizer before, please take time to review this manual to take complete advantage
of the R/EQ-150's unique capabilities.
Loudspeakers interact with every room differently. Often room acoustics are challenging and
compromises in speaker size and placement have to be made for aesthetic reasons. Consequently, the
quality of sound may not be as good as intended. Your Parasound R/EQ-150 permits you to subtly
adjust the frequency response characteristics in these situations and improve overall sound quality.
The Parasound R/EQ-150 has one-half octave width ± 8 dB boost and cut controls centered at 40 Hz,
80 Hz, 120 Hz, 2.5 kHz and 6 kHz. These frequency ranges were carefully selected so that you can
easily make precise improvements in frequency response curves in difficult installations while
minimizing potential adverse effects should the controls become accidentally misadjusted.
You should find the following items within the packing carton:
The R/EQ-150
An 18 AWG audiophile-grade AC cord
Owner's manual
Save your carton and packing inserts for safe transport in case you move or the unit ever requires repair.
If you ever need to ship the R/EQ-150 to us, be sure to pack it into an additional outer carton for
protection against shipping damage. Locate the serial number for the R/EQ-150 on the bottom of the
unit and record it here for future reference: __________________
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R /EQ-150 Room Equalizer
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Product Overview
Unpacking the R/EQ-150
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R/EQ-150 Owner's Manual
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Summary of Contents for Parasound TDQ-150

  • Page 1 Congratulations on your purchase of this precision audio component and thank you for choosing Parasound. We are sure that you will find the R/EQ-150 to be a very useful problem solving tool. Even if you have used an equalizer before, please take time to review this manual to take complete advantage of the R/EQ-150’s unique capabilities.
  • Page 2 Do not connect the R/EQ-150 to the processor's input to prevent overload and distortion. Fuse Holder R/EQ-150 Room Equalizer Parasound Products, Inc. San Francisco, CA USA CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN Input...
  • Page 3 R/EQ-150 Owner's Manual Operating Your R/EQ-150 Adjusting the R/EQ-150 Level Control Once you have installed the R/EQ-150 into your system, set all its frequency controls to their center detented positions. Next, set the volume control on your preamp or receiver to a comfortable level. Finally, adjust the level control on the R/EQ-150 so that the relative output level through the speakers is the same when its bypass switch is switched in and out.
  • Page 4: Reference Settings

    Parasound 120 Hz Mid Bass Adjustment: The 120 Hz control has an adjustment range of ±8 dB and a frequency bandwidth of one-half octave. Turning this control clockwise (boosting) can add mid-bass information to speakers with smaller woofers or speakers mounted in ceilings. Turning this control counterclockwise (attenuating) can tighten up muddy bass from speakers that are mounted in corners that reinforce bass frequencies.
  • Page 5 R/EQ-150 Owner's Manual R/EQ-150 Specifications Frequency Response (Frequency Controls at Center Detent) 20 Hz-20 kHz +/- 0.5 dB Frequency Control Center Frequencies 40 Hz, 80 Hz, 120 Hz, 2.5 kHz, 6 kHz Frequency Control Bandwidth 1/2 Octave Frequency Control Range +/- 8 dB Voltage Gain: (Frequency Controls at Center Detent)
  • Page 6 Parasound Parasound Products, Inc. 950 Battery Street, San Francisco, CA 94111 415-397-7100 / FAX 415-397-0144...

This manual is also suitable for:

R/eq-150