Crate Amplifiers LS3-231, LS1-131, LS2-215 manual Technical Specifications

		LS1-131/LS2-215/LS3-231Constant Q Graphic Equalizers
Technical Specifications
Filters	LS1-131: 1x31 Constant Q Multiple-feedback 1/3 octave ISO spacing from 20Hz to 20kHz
	LS2-215: 2x15 Constant Q Multiple-feedback 1/3 octave ISO spacing from 20Hz to 20kHz
	LS3-231: 2x31 Constant Q Multiple-feedback 1/3 octave ISO spacing from 25Hz to 16kHz
Center Frequencies, Hz (±3%)	LS1-131/LS2-231: 20, 25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500,
	630, 800, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k, 20k
	LS2-215: 25, 40, 63, 100, 160, 250, 400, 630, 1k, 1.6k, 2.5k, 4k, 6.3k, 10k, 16k
Control Range	±6dB or ±12dB, switchable
Frequency Response	20Hz-20kHz ±0.5dB (flat settings)
Total Harmonic Distortion	Less than 0.01% (20Hz-40kHz +10dBu)
Signal to Noise Ratio	>94dB (20kHz noise bandwidth)
Gain (flat settings)	LS1-131/LS2-231: ±12dB
	LS3-231: -∞to +12dB
Maximum Input Level	+22dBm (Level control at center position)
Common Mode Rejection Ratio	50:1
Channel Separation	50dB (1kHz)
Low Cut Filter	10Hz-25Hz, 12dB/octave
High Cut Filter	3kHz-40kHz, 12dB/octave
Input Impedance	10k ohms
Output Impedance	2.2k ohms
Output Impedance	600 ohms
Bypass switch	“Hardwire” Input to Output
Power Requirements	95-130VAC, 50/60Hz
	190-250VAC, 50Hz
Input AC Power	12W
Size (HxWxD)	LS1-131/LS2-215: 1.75” (4.5cm) x 19” (48.3cm) x 8.5” (21.6cm)
	LS3-231: 3.50” (8.9 cm) x 19” (48.3cm) x 8.5” (21.6cm)
Weight	LS1-131/LS2-215: 4.5 lbs (2.5kg)
	LS3-231: 9 lbs (4.1kg)

Due to ongoing product development and improvement, the specifications

contained herein are subject to change without notice.

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©1999 SLM Electronics, Inc. • A Division of St. Louis Music, Inc.

1400 Ferguson Avenue • St. Louis, MO 63133

47-056-01 • 05/99