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INSTALLATION INFORMATION
EMG MODEL: B-30 AND B-64 3 BAND EQUALIZERS
(ACTIVE / PASSIVE PICKUP INPUT)
SPECIFICATIONS
Input Impedance (Ohms)
Gain/Attenuation/ Frequency Bass Control
Gain/Attenuation/ Frequency Mid Control
Gain/Attenuation/ Frequency Treble Control
Input Referred Noise
Output Impedance (Ohms)
Supply Voltage
Current @ 9V/18V
Battery Life (Hours)
Maximum Supply (Volts DC)
General Operation
The B30 and B64 Equalizers are designed for contouring bass, mid and treble frequencies of bass guitar. The B30 features single-pole filters
for broadband equalization at 6db per octave. Often the broader single-pole filters are preferred for musical instruments because they are
less selective, easier on the ear, and sound more "musical". The B64 has a tighter filter bandwidth and has more of a pronounced effect from
each control. The mid-cut of the B64 is perfect for "funk" with it's mid-range centered at 600 HZ. Both the bass and treble controls of the B64
have tighter bandwidth and don't creep into the mnid-range as much as the B30. Both are illustrated in the graphs on the next page.
Battery Power:
If you play the instrument very hard, and are boosting any band heavily 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.
Dimensions:
B30 and B64
Equalizers
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.
© 2017 Copyright EMG INC. All Rights Reserved.
B-30 EQ
1 MegOhm
+/-12db/20Hz
+/-10db/900Hz
+/-12db/7.5KHz
-120dbV
2K Ohm
9 Volts
600/740uA
750
27 Volts
1.250 TYP
(31.75)
TREBLE
MID
3.170
(80.5)
TREBLE
MID
TREBLE
MID-RANGE
B-64EQ
500K Ohm
+/-10db/30Hz
+/-10db/600Hz
+/-12db/6KHz
-120dbV
2K Ohm
9 Volts
1.5/1.7mA
375
27 Volts
.312(8) X .400 (10) TYP
.236 (6) SOLID SHAFT TYP
.835
(21.2)
BASS
.822
(20.9)
BASS
BASS
.535
(13.6)
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Summary of Contents for EMG B-30
-
Page 1: Installation Information
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. - Page 2 As you can see the Low Frequency (Blue) curves and the High Frequency (Red) curves are very different. The B-30 has a much broader effect on low frequencies and “creeps”into the mid-range frequency region The Mid-range frequency response (Green) on both units is similar because mid-range frequencies when boosted on a bass guitar can get rather mean.
- Page 3 RED of the battery clip. Plug the Neck Pickup Cable onto the Neck Volume control. Extra pins on the V+ Supply Buss are for EMG Accessories. Plug the Bridge Pickup Cable onto the Bridge Volume control. 7) Put the battery in the insulating foam piece provided and place it securely 3) Plug a coax cable from the Neck Volume control to the Bridge Volume in the control cavity.
- Page 4 BRIDGE PICKUP INPUT Installation (Two Pickup Guitars with Selection switch): NECK PICKUP INPUT Guitars with two pickups and a selection switch will use the EMG B245 Pickup Buss OUTPUT shown at the right in Diagram #5a. The Pickup Buss is a convenient way to wire your guitar without soldering.