0
1
2
3
4 5 6
7
8
9
10
0
1
2
3
4 5 6
7
8
9
10
+
G
-
+
G
-
RCV
XMT
2
1
4
3
ON
OFF
LO-CUT
ON
OFF
LO-CUT
ON
OFF
BAL IN
BAL IN
B
A
PO
WER
SEQ
UENCING
POWER
STATUS
OFF - No Power
AMBER - Stand By
GREEN - Active
RAMSEY, NEW JERSEY
BLACK MAX
B
A
AUTO
OFF
CLASS
2 WIRING ACCEPTABLE
SLEEP
120VAC
~
60 Hz
EARTH
GROUND
COMMERCIAL
AUDIO AMPLIFIER
14RB
LISTED
UL
C
US
US
+
+
The amplifier shall be a Bogen Black Max Amplifier, Model
X600, X450 or X300.The amplifier shall provide two indepen-
dent channels of 70V output each with the capability of 600,
450 or 300 watts, respectively.
The amplifier shall provide 2 separate electronically balanced
inputs available through pluggable 3-pin terminal strips. The
input impedance shall be
1
0k ohms in a balanced configuration.
Each input channel shall have a continuously adjustable input
level control mounted on the rear panel of the amplifier.
The amplifier shall have the ability to be wired to other Black
Max amplifiers in such a way as to provide power-up sequenc-
ing of all amplifiers so wired. Sequential turn-on connections
shall be made through a 4-pin pluggable terminal strip.
Sequential turn-on shall be defeatable via a rear-mounted, low-
profile switch.A power status indicator on the rear of the unit
shall provide information as to the amplifier’s current AC
power state. The indicator shall indicate either unpowered,
standby, or active state of the amplifier.
The amplifier shall drive the 70V speaker loads directly with-
out the use of an output transformer.The amplifier shall allow
a user-defeatable low frequency roll-off at 60Hz for each chan-
nel independently to protect transformer-coupled speakers
from saturation.
The amplifier shall have a defeatable sleep mode that greatly
reduces idle power consumption when the amplifier has not
received audio for more than 3 minutes.The amplifier shall also
include a clip limiting feature that automatically reduces ampli-
fier clipping.
The amplifier shall have three indicators that correspond to
status, signal, and limit.
The amplifier shall include Bogen’s patented Back-Slope AC
voltage regulation that automatically compensates for surges
or sags in AC line voltages of up to +/-
1
0%. Additionally, the
amplifier shall be protected against over-currents, overloads,
excessive thermal dissipation, DC voltage, and short circuits on
the outputs.
The amplifier shall be enclosed in a heavy-gauge steel chassis
with a cast aluminum front and flexible plastic fan grilles. The
amplifier shall be cooled by 2 independent fans with continu-
ously variable speed control and easily replaceable fan filters.
The amplifier shall fit into a
1
9" rack and use two rack spaces.
It shall allow the attachment of feet for tabletop placement.
Architect &
Engineer
Specifications*
50 Spring Street, Ramsey, New Jersey 07446, U.S.A.
20
1
-934-8500 FAX: 20
1
-934-9832
Web Site: www.bogen.com
* Both channels driven at nominal line voltage
1
20V AC, 60Hz
** Requires 20A, NEMA 5-20R Type Receptacle.
Technical Specifications
X600
X450
X300
Power Output*
600W per channel @ 70V
450W per channel @ 70V
300W per channel @ 70V
Input Sensitivity
1
V
S/N Ratio (20k BW)
1
04 dB ref. 70V, F.P.
Class of Operation
H
Product Weight
46 lb.
44 lb.
4
1
lb.
Connectors:
Power
Input
Output
20A line cord**
1
5A line cord
1
5A line cord
Pluggable 3-pin terminal strips
5-pin "touch-proof" Barrier Strip
Power Bandwidth
20-40 kHz .5% THD
THD @
1
kHz rated power
less than .02%
Rated Load Impedance (per ch)
8 ohms
11
ohms
1
6 ohms
Frequency Response @
1
watt
20-20 kHz +/- 0.25 dB
Output Regulation,
1 k
Hz direct
1
.5 dB @ 70V
Inputs
1
0k-ohm electronically balanced, 3-pin pluggable terminal strip
Low-Cut Filter
60 Hz, 2nd order roll-off, switch defeatable per channel
AC Input Voltage Range
95-
1
30V AC, 60Hz
Maximum AC Current
20A**
1
5A
1
2A
Indicators
Status, Signal, Limit,AC Power Status (rear)
Temperature Range
1
5 to
1
05° F
Cooling
Dual Forced Air Variable Speed Fan
Physical Dimensions (W x H x D)
1
7" X 3-
1
/2" x
1
6" (without rack mount brackets attached)
Protection
RF, DC, Low-frequency,Thermal, Low-Impedance, Short Circuit, Circuit-Breaker, Clip Limiting
Special Features
Sequential Turn-On Circuitry (defeatable), Sleep Mode (defeatable),
Back-Slope AC voltage regulation,Toroidal Power Transformer
* Architect and Engineer Specifications are available on CD and
online in a Word document to assist you with preparing your bids.
