Crate B160XL User manual

AMPLIFIER
B160XL BASS AMPLIFIER
We would like to take this opportunity to thank you for selecting
a Crate product, and to tell you of our commitment to the design
and manufacture of only the finest musical instrument amplifica¬
tion equipment; built for you, the musician.
You have purchased one of the most innovative sound ampfifi-
cation devices available today. Your Crate amplifier gives you
more performance features than ever before; features that you,
the musician, have asked for.
Your Crate amplifier is an American product, manufactured at
our factory in St. Louis, Missouri. Only the finest available com-
ponents and materials are used in the manufacture of each
amplifier.
AN Crate amplifiers are subject to seven or more inspection and
testing steps to assure you of a high quality product The final
test for each amp Is conducted by a trained musician with the
instrument the amp was designed for. Any unit that does not
meet the standards of his discriminating ear wiN not be passed.
Since all Crate products are designed, developed, and manufac¬
tured through the cooperative efforts of engineers and profes¬
sional musicians, the end result is a product that responds to
the musician s audio requirements, and a product that wiii serve
your needs for years to come.

OPERATION
1 2 3 5 7 9 It T2 14 15 T6 17 20
FRONT PANEL FEATURES AND
FUNCTIONS
INPUT SECTION
1. INPUT JACK; This input accepts a
standard 1/4" phone plug and is suit¬
able for any low to line level signal
source such as an electric bass*
2. - IS dB INPUT JACK; This input also
accepts a standard T/4" plug but is pad'
ded 15 dB for hotter inputs such as
tape decks or active basses*
3. GAIN CONTROL; This control sets
the amount of gain for the preamp*
EQUALIZATION SECTION
6- LOW BOOST SWITCH: Low frequen¬
cies are boosted when this switch is
depressed,
1\ GRAPHIC EQUALIZER; This is the
main tone control section of the
BT60XL Seven bands of frequencies
from 50 Hz to 5 kHz may be boosted
by moving the sliders up or cut by
moving the sliders down. The lower
frequencies are to the left and the
higher frequencies are to the right* A
great many tone variations are possi¬
ble using different settings of these
sliders.
8* HIGH BOOST SWITCH: This switch
adds additional high frequency boost
such as desired for a "popping'' or
"slapping" playing style.
9. MASTER VOLUME CONTROL: This
control sets the overall listening fevef
of the B160XL.
10. LIMIT LED INDICATOR; The B160XL
contains a power amp limiter which
automatically limits the si gnai to the
power amp to a point just below "dip¬
ping" or distortion* This is to assure a
clean undistorted sound at full power.
The limit LED indicator will be lit
whenever full power is reached*
A Jow output instrument or soft play¬
ing style requires high gain (5-10 set¬
ting) white a high output instrument
or hard playing style requires Jess gain
[1-4 setting). Too high of a setting
along with boosted equalization may
cause distortion or a harshness of
sound. If this is not desired, simply re¬
duce the gain with this control.
4, P E AK LED INDICATOR; The peak in-
dicator is Jit whenever there is distor¬
tion present in the preamp. The gain
control should be set so that the indi¬
cator flashes occasionally or does not
EFFECTS LOOP
11 - EFFECTS LOOP OUTPUT; This jack
may be connected to the Jine level
input of an external effects device.
This jack may also be used as a "direct”
unbalanced send for recording, etc.
12- EFFECTS LOOP INPUT: This jack
may be connected to the line level
output of an external effects device.
This "Post Gain'' configuration is help¬
ful in obtaining optimum input signal
levels to external devices and reduc¬
ing the noise levels associated with
them*
CHORUS SECTION
13- CHORUS SWITCH: The chorus effect
is turned on when this switch is de¬
pressed.
14. SPECTRUM CONTROL; With this
control fully counterclockwise the full
frequency spectrum of the signal is
chorused* As the control is turned
clockwise low frequencies are al¬
lowed to pass with no chorus effect
allowing a more "tight" or punchy
low end sound with upper harmonic
chorusing. This is usually desirable
when playing in a "live" situation*
15. DEPTH CONTROL: This control is
used to set the "depth" or amount of
tight at all during normal playing,
5. P RE-SHAPE CONTROL; This is a pre-
EG "master” tone control. With the
control set at "12 o'clock", the signal
will pass to the EQ section "flat” (with
no modification of tone). As the con¬
trol is turned clockwise, high frequen¬
cies will be boosted and as the control
is turned counterclockwise* low fre^
quendes will be boosted* This control
can be used to "dial in" a general tone
setting which can be fine tuned by
the EQ section or to instantly modify
an existing EQ setting with one knob.
chorus effect.
16- RATE CONTROL: This control Is used
to set the rate of chorusing. This con¬
trol when used in conjunction with
the Depth control allows a wide
range of chorus effects from a subtle
chorus effect to far out sound effects.
17. LINE OUT LEVEL CONTROL: This
control Is used to set the level of the
balanced line output jack.
18. BALANCED LINE OUTPUT JACK;
This jack provides a balanced output
signal for connection to an external
power amp, tape deck, or mixing
board.
19. ON/OFF LED INDICATOR; The LED
will be lit when the amplifier is turned
on,
20- POWER SWITCH; Pushing the switch
to the up position turns the BT60XL
on.

24 23 22 21 25
REAR PANEL FEATURES AND
FUNCTIONS
21. LINE OUTPUT JACK: This jack pro-
vides a high impedance unbalanced
output for connecting the B160XL to
another amplifier or tape recorder,
Simply run a cord from this jack to the
input of another ampfifier or tape
deck.
22. LINE INPUT JACK; This jack is used
as a direct input to the power amp.
Plugging into this jack disconnects the
47 - 5 35-05
direct (normal) connection between
the preamp and power amp. The Line
Input Jack may be used with the Line
Output Jack as an effects loop.
23&24 SPEAKER OUTPUT JACKS; Any
load equal to at least 2 ohms may be
connected to the speaker jacks. If
more than one jack is used, the total
load considering both jacks must be
at least 2 ohms. The standard internal
speaker configuration is equal to 4
ohms. This means that an additional
4 ohm load may also be connected ,
which would be a total of 2 ohms.
25. POWER CORD: Your B16QXL is
equipped with a heavy-duty
grounded three-wire power cord, Be
sure this cord is properly plugged into
a safely wired grounded 120 Vac 60
Hz AC power outlet before use, (if
your B160XL was purchased outside
the United States, refer to the rear
panel for power ratings). For your
safety, never attempt to defeat the
ground connection on this cord.
B- 1 6 0 XL TECHNICAL SPECIFICATIONS
Output Power Rating
160 watts RMS S%THD
4 ohm load-120Vac line
Speaker Size and Rating
B-16GXL— 15" with 2-1 IT voice coil, 56 oz, magnet
crate special design.
B-160XLE— T 5" Electro Voice Force
Pre-Shape Control
14 dB boost @5 kHz
10 dB boost @ 50 Hz
Low Boost Switch
10 dB boost @40 Hz
Graphic Equalizer
24 dB range @ 5QHz, 100Hz. 200Hz, 400Hz, 800Hz,
1.6kHz, andSkHz
High Boost Switch
8 dB boost @ T 0kHz
Input Impedance
220k ohms
Maximum Signal Level Accepted
T5vpeak-to-peak
Gain @ T kHz
62dB w/EQ flat, boosts off
Line Output Jack
2 volts peak-to-peak @full rated power
Balanced Line Out Jack
2 volts peak-to-peak @ fuff rated power with 600 ohm load
Signal To Noise Ratio
70 dB below fuff power
Input Power Requirements
120Vac 60Hz, 400 watts max.
Size and Weight
24-3/4'’ W X 23" H X 16" D 65 lbs.
Specifications subject to change without notice,
CAUTION: To reduce the risk of electric shock, do riot remove chassis. No user serviceable pans Inside. Refer servicing to qualified service personnel.
CAUTtON: This equipment Is capable of producing sound pressure levels greater than ItOdB SPL. Continued exposure to such high sound pressure levels can cause
permanent hearing impairment or loss. User caution is advised, and ear protection Is recocnmended.