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Features
Description: The
EQS is a 6-channel equalizer/line driver. There are are dedicated 7-band graphic
equalizers for the front and rear outputs, and a 6-band graphic equalizer for
the subwoofer output.
Dual Bandwidth Equalization:
A total of 13 bands are available over two bandwidths:
- Front/Rear EQ: Two 7-band equalizers feed the front and rear
outputs; the center frequencies of both are 120 Hz, 160 Hz, 250 Hz, 500 Hz, 1
kHz, 2 kHz, and 10 kHz. The rotary knobs adjust the signal +/-12 dB. There's a notch at each knob's center position so it's
easy to return to the flat setting.
- Subwoofer EQ: A 6-band 1/3 octave equalizer feeds the subwoofer outputs; the
center frequencies are 31.5 Hz, 40 Hz, 50 Hz, 63 Hz, 80 kHz, and 100 kHz. The rotary knobs adjust the signal +/-12 dB. There's a notch at each knob's center position so it's
easy to return to the flat setting.
Line Driver: To achieve the
best possible signal to noise ratio and dynamic range from your amplifier, the
built-in line driver can increase the head unit's output voltage up to 18 dB (9.5 volts RMS/13 volts peak).
Input Gain: The input gains for the front, rear, and sub channels
are set independently. The range is adjustable +/-12 dB to match the source
output to the EQ input.
Output Level: The +20 dB maximum output level allows you to increase the
head unit's line voltage to the top of your amp's input range; up to 9.5 volts RMS/13 volts peak.
Balanced Inputs: Using the balanced differential input circuit cancels
noise picked up in the transmission line between the EQS the the source
unit.
Ground Isolation: The power supply ground is switchable, in case of
ground loop noise. The factory position is fully isolated (typically the best
choice), but can be changed to Ground or 200Ω.
Auto Select Inputs: The EQS
automatically switches the inputs to maximize the equalization controls, whether
you use two, four, or six preamp inputs.
Speaker Level Inputs: The
4-channel speaker level inputs are compatible with most factory installed
radios, even most Bose systems.
Terminal Blocks: The power/ground/remote terminal and the
speaker level input terminals are removable; the wiring is attached to the
block, then the block is plugged into the EQS. The terminal block will
accommodate wire up to 12 gauge.
Subsonic Filter: The subsonic filter crossover point is 33
Hz. The crossover point is governed by a replaceable chip, so it can be
modified.
Specifications:
- Maximum Line Input: 15
volts RMS
- Maximum Speaker Level Input:
100 watts/channel
- Maximum Output: 9.5 volts RMS/13 volts peak
- Frequency response: 10 Hz-100 kHz; ±1 dB
- THD: 0.003%
- S/N Ratio: 110dB
- Balanced Input Noise Rejection: 60 dB
- Input Impedance: 20 kΩ
- Output Impedance: 150 ohms
