Equinox Features & Specifications
Feature Benefit
3 Band Parametric Equalizer Preamp Allows precise EQ control to correct or enhance very specific tonal problem areas
with frequency sweep control, bandwidth control, and boost/cut control
Two independent notch filters Eliminate acoustic feedback
20 dB gain switch Provides instant gain
True bypass switching of non-activated functions Bypass switch removes entire EQ and notch filter sections from signal chain leaving only high impedance, low noise input and buffered output
High quality components Extremely low noise and distortion, audiophile quality sound
1/4î stereo input jack Allows connecting input and output to Solstice on a single, stereo cable
Compact, portable design Can be used as a stand-alone preamp for
ultra portable instrument amplification systems
Technical Specifications
Input stage - Extremely low noise and low distortion

Maximum input signal - 8.5 VRMS @ unity gain
setting/.85 VRMS @ +20dB gain

Slew Rate - 22V/us
Input impedance - 2Meg ohms

Thd - <.003% @ 1Vo

Noise - All controls set "flat"/118dBV, referred to input with gain set at +20dB

All controls set "flat"/106dBV, referred to input with gain set at unity		 "Worst Case" noise - 94dBV, all EQ set to full boost, all Q controls set to full narrow, frequency controls set to highest frequency.

3 Band EQ - each band has adjustable Q (bandwidth) from .58 to 9.4 with 15 dB of boost and cut available

Low Frequency Band - Frequency adjustable from 39 Hz to 408 Hz

Midrange Frequency Band - Frequency adjustable from 212 Hz to 2.35 KHz

High Frequency Band - Frequency adjustable from 1.8 KHz to 20 KHz		 Notch Filters - Q (bandwidth) fixed at 9.0 with 15 dB of cut available

Notch Filter #1: Frequency adjustable from 40 Hz-400

Notch Filter #2: Frequency adjustable from 80 Hz-800


Misc. Features

Input Jack - 1/4î Stereo, input on tip / output on ring, allows interface with DTAR Solstice (Acoustic Mixer) using a single, stereo cable.

Output Jack - 1/4" Mono

Power Supply - Internal +/- 15V derived from 15VAC external, wall mounted power transformer.
Frequency Band Potentiometer Position
  9 o'clock 12 o'clock 3 o'clock
Low 50 Hz 130 Hz 330 Hz
Mid 270 Hz 750 Hz 1.9 KHz
High 2 KHz 6 KHz 15 KHz
Notch 1 70 Hz 177 Hz 450 Hz
Notch 2 115 Hz 290 Hz 750 Hz
Dimensions
  • 8.5" wide x 6.5" deep x 2.7" high
  • Weight 2.9 lbs.
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Equinox Parametric Equalizer Preamp

Equinox is an audiophile quality 3 band parametric equalizer preamp with low noise components and circuit design making it ideal for studio and live use. The frequency sweep control, bandwidth control, and boost/cut control allows musicians to correct or enhance very specific tonal problem areas. Dual notch filters can be used to control or eliminate acoustic feedback. Equinox is the ideal solution for musicians who require precise control of their EQ. View back panel.