User Guide

.650
(16.5)
2.200
(55.8)
.880
(22.4)
2.700
(68.5)
1.945
(49)
6mm
D Shaft
8mm
P .75
9mm
P .075
BASS
CONTROL
TREBLE
CONTROL
BASS
CONTROL
TREBLE
CONTROL
BASS
CONTROL
TREBLE
CONTROL
MID-RANGE
CONTROL
INSTALLATION INFORMATION
EMG MODEL: BQS CONTROL
(ACTIVE / PASSIVE PICKUP INPUT)
0230-0202rM
SPECIFICATIONS
Input Impedance (Ohms) 500K Ohm
Gain/Attenuation/ Frequency Bass Control +/-12db/20Hz
Gain/Attenuation/ Frequency Treble Control +/-12db/(Adjustable)
Input Referred Noise -120dbV
Output Impedance (Ohms) 2K
Recommended Supply Voltage 18 Volts
Current @ 9V/18V (Microamps) 600/740
Battery Life (Hours) 750
Maximum Supply (Volts DC) 27 Volts
Dimensions:
BQS (Mid/Bass/Treble)
Equalizer
Warranty
All EMG Pickups and accessories are warranted for a period of two years. This warranty does not cover failure due to improper installation, abuse or damage. If
upon examination the pickup is determined to be defective, a replacement will be made. Warranty replacement products are covered by this same warranty. This
warranty covers only those pickups and accessories sold by authorized EMG Dealers. This warranty is not transferable.
© 2014 Copyright EMG INC. All Rights Reserved.
PO BOX 4394
SANTA ROSA, CA
95402 USA
P [phone]
F [phone]
EMGPICKUPS.COM
INCLUDED:
1 BQS Control
4 Knobs
1 Battery Clip with Buss Connector
1 Stereo Output Jack (Battery Switching)
4 Interconnect Cables (2 Red, 2 White)
General Operation
The BQS System is an active EQ circuit for bass guitars. Their effects are illustrated in the graphs on the next page. They allow you separate
control over bass, midrange, and treble. Rotate the controlled clockwise to boost, counterclockwise to cut. There is a center detent for flat
response. Active or Passive pickups can be used with the BQC and BQS Controls.
The mid-range control has a variable frequency knob that allows you to sweep through the mid-frequency range from 100Hz to 1KHz. This
selects the frequency to boost or cut. The graphs on page 2 depict the frequency response of the controls.
Battery Power:
If you play the instrument very hard, and are boosting the bass or treble with the BQS, you should consider operating the instrument on +18
Volts (See “Power Tips” under Accessories/product data sheets at http://www.emgpickups.com). If you play mildly and use a minimum of boost
the instrument should operate easily on a single 9-Volt battery. Use an Alkaline or Lithium battery for the best battery life and always unplug
your guitar when you’re not using it.