Kategorie: Röhrenverstärker


Ausstattungsliste: Audio Research LS28 Line-Stage


Ausstattung & technische Daten
TECHNICAL SPECIFICATION
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: 18.5dB balanced output. (12.5dB 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) 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 PH9
FREQUENCY RESPONSE ±.2 dB of RIAA, 5 Hz to 20kHz; 1 dB points below 0.3Hz and above 80 kHz.
DISTORTION Less than .015% at 3V RMS 1kHz output.
GAIN 55 dB at 1 kHz
INPUT IMPEDANCE Selectable loads: 47k, 1000, 500, 200, 100 Ohms.
OUTPUT IMPEDANCE 200 ohms. Recommended load 50k-100k Ohms and 100 pF. (10k Ohms minimum and 2000 pF maximum).
OUTPUT POLARITY Non-inverting.
MAXIMUM INPUT 80 mV RMS at 1kHz.
RATED OUTPUTS 0.5V RMS 10 Hz to 60 kHz, into 100K ohm load (maximum balanced output capability is 0.46V RMS at less than 0.5% THD at 1kHz).
CONTROLS 6 Push Buttons: Power, Menu, Option, Enter, Input, Mute.
POWER SUPPLIES Electronically regulated low and high voltage supplies. Automatic 2 minute warm-up/brown-out mute. Line regulation better than .01%.
NOISE >77 dB, shorted inputs.
TUBE COMPLEMENT (3)-6H30P dual triodes, plus (1 each) 6550WE and 6H30P in power supply.
POWER REQUIREMENTS 100-125VAC 60Hz (200-250VAC 50/60Hz) 120 watts maximum. Standby: 2 watts.
DIMENSIONS Width: 19” (48 cm) Height: 6.5” (13.7 cm) Depth: 13.7” (34.8 cm)
Handles extend 1.6” (4 cm) forward of the front panel. Weight: 15.4 lbs. (7 kg) Net; 23.5 lbs. (10.7 kg) Shipping.
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