Samson S1500 Power Amplifier Users Manual Cont 05 2003

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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 maxi-

mum 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 vari-

ety 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 three-

space rackmount amp features two speed-controlled fans

that react to changes in temperature for maximum efficien-

cy. 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 3-

segment 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-chain-

ing" 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-con-

trolled fans, and shall have internal short-circuit and thermal

protection circuitry. A protection LED indicator shall acti-

vate and the power amplifier shall shut down to protect

against short circuits, overheating, severe overcurrent con-

ditions or DC offset present at the outputs. The power

amplifier shall have slow start-up and muted inputs on turn-

on. 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 indepen-

dent 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