Audio Research LS28 Line Stage Preamplifier


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Etiketler: Audio Research LS28 Line Stage Preamplifier

FREQUENCY RESPONSE
+0-3dB, 0.4Hz to 200kHz at rated output (Balanced, 200k ohms load)

THD+NOISE
Less than .007% at 2V RMS BAL output.

NOISE
Less than -100dBv at max volume (103).

DYNAMIC RANGE
122dB (AES17).

CROSSTALK
-105dB

GAIN
Main output: 18.7dB balanced output. (9.3dB SE output.)  Record output: 0dB (Processor input: 0dB balanced out).

INPUT IMPEDANCE
100K ohms Balanced, 50K ohms SE. 8 Inputs - 4 balanced, 4 single-ended.

OUTPUT IMPEDANCE
600 ohms Balanced, 300 ohms SE Main (2), 20K ohms minimum load and 2000pF maximum capacitance. Outputs (3): 2 Main, 1 Record (XLR and RCA connectors).

OUTPUT POLARITY
Non-inverting.

MAXIMUM INPUT
16V RMS BAL, 8V RMS SE.

RATED OUTPUTS
2V RMS (1V RMS SE) 1Hz to 200kHz into 200K ohm balanced load (maximum balanced output capability is 17V RMS at less than 0.5% THD at 1kHz).

CONTROLS
Rotary volume selector (103 steps) and rotary input selector. Push buttons: Power, Menu, Enter, Mono, Invert, Mute

POWER SUPPLIES
Electronically regulated low and high voltage supplies.  Automatic 45 sec. warm-up/brown-out mute.  Line regulation better than .01%.

TUBE COMPLEMENT
(4) 6H30P dual triode.

POWER REQUIREMENTS
105-125VAC 60Hz (200-250VAC 50/60Hz) 130 watts maximum.

STANDBY
2W

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