Samson S1500 User Manual
S1500
AMPLIFIER
POWER
Contact
:
Samson Technologies Corp., P.O. Box 9031, Syosset, NY 11791-9031 • Phone: (516) 364-2244 • Fax: (516) 364-3888 • www.samsontech.com
BRIDGED PARALLEL
STEREO
BALANCED
0dBm
CH 2 CH 1
BALANCED
0dBm
INPUT
~AC INPUT
115V 60Hz, 920W
20A/250V
PUSH TO RESET
(4Ω~8Ω) (4Ω~8Ω)
(4Ω~8Ω) (4Ω~8Ω)
CH 2 CH 1
OUTPUT
TRS
BALANCED
TIP=HOT
RING=COLD
SLEEVE=GND
XLR
BALANCED
3=COLD
1=GND
2=HOT
CHANNEL 2
CHANNEL 1
PROTECTION
-30dB
-80dB 0dB
-10dB
-20dB
PROTECTIONPOWERCLIP
-40dB -20dB
CLIP
-40dB -20dB
-30dB
-80dB 0dB
-10dB
-20dB
S1500
OFF ON
750W X2 STEREO
SAMSON
• 750 watts a side into 4 ohms
• 1500 watts into 8 ohms in bridged mono mode
• Stereo power amplifier in three rack spaces
• Dual temperature-sensitive, speed-controlled fans for maximum reliability
• A stable bipolar design for long life and enhanced audio
performance
• Two front-panel input level controls with 41 detents for
greater accuracy
• 3-segment output LED metering.
• Dual protection LEDs and special relay-controlled outputs
linked to the protection LEDs to avoid speaker damage in
case of fault
• Banana jack outputs with Speakon™ connectors
• XLR inputs and locking TRS inputs
• Resettable fuse
• Parallel outputs to "daisy-chain" several amps together
The new S1500 power amplifier from Samson is designed
for maximum reliability and efficient performance in a variety of live sound reinforcement situations, commercial
installations and for powering PA systems.
Delivering 750 watts per side into four ohms and 1500
watts into eight ohms in bridged mono mode, the threespace rackmount amp features two speed-controlled fans
that react to changes in temperature for maximum efficiency. A bipolar design enables more stable operation while
ensuring high-quality audio performance. The front panel
includes two precise 41-detent input level controls with 3segment LED, output metering and dual protection LEDs
linked to special relay-controlled LEDs to avoid speaker
damage.
A number of practical features such as XLR inputs and
locking TRS inputs and parallel outputs for "daisy-chaining" several amps together complete this rugged performer.
ARCHITECT’S & ENGINEER’S
SPECIFICATION
The power amplifier shall be capable of stereo, mono
bridged or parallel (daisy chain) operation. In stereo mode,
it shall deliver a minimum of 750 watts into loads of 4 ohms
each with both channels operating. In mono bridge mode, it
shall deliver a minimum of 1500 watts into an 8 ohm load.
It shall be cooled by two temperature sensitive speed-controlled fans, and shall have internal short-circuit and thermal
protection circuitry. A protection LED indicator shall activate and the power amplifier shall shut down to protect
against short circuits, overheating, severe overcurrent conditions or DC offset present at the outputs. The power
amplifier shall have slow start-up and muted inputs on turnon. Inputs shall be on XLR and locking balanced 1/4″ tip-
ring-sleeve connectors. Outputs shall be on Banana jack and
Speakon™ connectors. The front panel shall have independent level controls for left and right channels, a master power
switch and LED indicators for power, clip, -20dB, -40dB and
amplifier protection.
The power amplifier shall have a frequency response
of 9 Hz to 42 kHz, signal-to-noise equal to or greater than
105 dB and THD less than 0.03%. The dimensions shall
allow for standard 19″ EIA rack mounting. It shall be 5.25″
(133.35 mm; 3 rack spaces) high and 9.75″ (247 mm)
deep. Weight shall be 48 lb. (21.8 kg). The power amplifier
shall carry a three-year warranty.
The power amplifier shall be a SAMSON S1500.
Specifications subject to change without notice. ©2000–2003 Samson
S1500 SPECIFICATIONS
Rated Output Power, per channel (1 kHz, THD 0.1%, Both Ch Drive)
Stereo / Parallel modes
per channel (into 4 ohms) 780 W
per channel (into 8 ohms) 550 W
Bridged mode
per channel (into 8 ohms) 1550 W
Frequency Response (0 dB, +0.5, -1 dB) 9 Hz - 42 kHz
Total Harmonic Distortion
(1/2 power @ 20 Hz - 20 kHz, Both Ch Drive into 4 ohms)
0.021%
Dynamic Range 101 dB
Channel Separation (4 ohm, 250 W, 1 kHz) 82 dB
Residual Noise (0 dB ref. = .775 VAC rms, 22 Hz - 22 kHz)
(Att. Min.) -70 dBu
(Att. Max.) -65 dBu
Voltage Gain (4 ohm, 1 kHz) 37.3 dB
DC Offset Voltage 0 ± 100 mV
Damping Factor More than 100
Indicators
Clipping LED 1 kHz THD 0.1%
Signal LED Right -20 dB ± 2 dB
Signal LED Left -40 dB ± 2 dB
Dimensions 19 in (w) x 15.5 (d) x 5.25 (h)
482 mm (w) x 394 (d) x 133.35 (h)
Rackpsaces 3U
Weight 48 lbs. • 21.8 kg
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