Description
Hybrid tube/FET stereo line stage. Exists in two versions: LS2 and LS2B (Balanced).
Introduced
1991 (LS2)
1992 (LS2B)
Discontinued
?
Revisions
LS2 MKII (1994)
LS2B MKII (1994)
Options
Remote control
MSRP (US new retail)
$2,495 (LS2)
$2,995 (LS2B)
$2,650 (LS2 MKII)
$2,995 (LS2B MKII)
Specifications
LS2B MKII:
| Frequency response | ± .5dB, 1Hz to 100Hz, -3dB points below 0.1Hz and above 300kHz |
|---|---|
| Distortion (THD) | Less than .01% at 2V RMS output.(Typically less than .005% in midband) |
| Noise & hum | 20µV RMS residual 1HF weighted noise at main unbalanced output with gain at minimum (100dB below 2V RMS output). Balanced input noise 100dB below 1V input. |
| Gain | Main Output: 18dB (Optional 9dB gain reduction through an internal jumper) |
| Balanced output: 24dB (Optional 9dB gain reduction through an internal jumper) | |
| Tape output: 0dB | |
| Input impedance | 50K ohms unbalanced, 3 megohm balanced. |
| Output impedance | 200 ohms main output. 400 ohms Balanced 1, Balanced 2 (10K ohms minimum load and 2000pF maximum capacitance) |
| Output polarity | |
| Maximum inputs | 20V maximum unbalanced, 8.5V (+21dB) maximum balanced |
| Rated outputs | 2V RMS 1Hz to 100kHz into 60K ohm load (maximum output capability is 30V RMS [60V RMS balanced] output at 05% THD at 1kHz into a 10K ohm load) |
| Power supplies | Electronically-regulated low and high voltage supplies. Two transformers (toroid for high voltage). Line regulation better than .01% |
| Tube complement | (1) 6922 |
| Power requirements | 100-135VAC 60Hz (200-270VAC 50/60Hz) 60 watts maximum |
| Other | |
| Dimensions | 19" (48 cm) W x 5 1/4" (13.4cm) H (standard rack panel) x 10 1/4" (26cm) D. Handles extend 1 5/8" (4.1cm) forward of front panel. Rear chassis fittings extend 7/8" (2.3cm). |
| Weight | LS2: 13 lbs. (5.9 kg) Net; 21lbs.(9.5 kg) Shipping. |
| LS2B: 14 lbs. (6.0 kg) Net; 22lbs.(10 kg) Shipping. |
Reviews
Issue 100 (LS2B)
Vol. 14 No. 10 (LS2), Vol. 16 No.1 (LS2B), Vol 16. No 4
(LS2B)Pictures
LS2:
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LS2 MKII:
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LS2B:
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LS2B MKII:
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