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Now In: Pre/Power AmplifiersPreamplifiers → Artemis Labs LA-1 Tube Preamp

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Artemis Labs LA-1 Tube Preamp



Price: $3,500.00

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"...sound less like reproduced and more like live music than anything I've heard in some time... One thing you'll immediately notice is that there's an unusually high level of air and ambience to the recorded space as well as around the various dimensions of Milstein's violin... holding on to tonal and dynamic subtleties in a way that makes the performance seem chillingly alive... the level of musical experience and involvement was, simply put, more magical than any I've known in ages."

Wayne Garcia, The Absolute Sound, Issue 155

 
"The LA-1 brought so much to the table that the experience had me filling out the warranty card. This is one for the ages." John Mazur, Postive Feeback  Read the entire review here.

The Artemis Labs LA-1 Line Pre Amp combines the clean, accurate sound of a purist single-triode line amplifier with the convenience and reliability of a solid, well-built product. Special care is taken with all parts in the audio path, from the Goldpoint™ stepped attenuator to the Swedish output chokes by Lundahl. The sonic clarity and detail are outstanding.

 Key Features:

5 inputs, 2 outputs
Five stereo inputs available at the flick of a switch. Two pairs of RCA output jacks allow connections to sub-woofer
or signal processor, as well as power amplifier.
12dB maximum gain
Provides adequate gain for most sources without the hum and noise caused by excessive gain.
Goldpoint™ stepped attenuator volume control
Series-type stepped attenuator using precision metal-film resistors by Dale and switch mechanism by Elma (Swiss).
Dual conductive-plastic balance controls
A separate potentiometer is used to balance each channel. This allows maximum gain in the normal balanced condition and permits the use of high-quality conductive plastic pots with no sonic degradation yet infinite resolution.
Mono/Stereo switch with LED indicator
The left and right channels can be merged, with a yellow LED indicating the mono condition.
One 5687 tube per channel in Cool-Swap™ Configuration
An idle spare in each tube, plus tubes run cooler.
Choke loads for each triode
Allows tubes to run in their most linear mode and permits lower plate supply voltage
Low-Gain MOSFET high voltage regulation
One regulator per channel minimizes cross-talk and gives a firm, stable sound without sounding “solid-state”.
All Artemis PreAmps Designed and built in the United States using the best parts from around the world.

 Specifications:

Maximum Gain (47K load, 1KHz):12dB +/- 1.5dB
Frequency Response & Distortion:
Worst-case Loading (8K ohms, 1000pF):
Worst-case settings (Input Attenuator and Balance both at -6dB):
Frequency Response: < 10Hz – 32KHz +/- 0.5dB
Average settings (Input Attenuator at -16dB, Balance at -1.5dB):
Frequency Response: < 10Hz – 40KHz +/- 0.5dB
THD+N at 1KHz, 2Vrms output: < 0.12%
Average Loading (47K ohms, 250pF):
Worst-case settings (Input Attenuator and Balance both at -6dB):
Frequency Response: < 10Hz – 45KHz +/- 0.5dB
Average settings (Input Attenuator at -16dB, Balance at -1.5dB):
Frequency Response: < 10Hz – 60KHz +/- 0.5dB
THD+N at 1KHz, 2Vrms output: < 0.05%
Maximum output voltage (47K load, 1KHz, 0.5% THD): 40Vrms
Output Noise (grounded input, 47K load, rms detector):
22Hz - 30KHz: < -82dB below 2Vrms output
”A-weighted”: < -85dB below 2Vrms output
Crosstalk:
1KHz: < -75dB
20KHz: < -45dB
Effective Output Impedance: approx. 750 ohms (1KHz)
Input Impedance: 30K to 50K ohms, depending on Input Attenuator and Balance control settings.
Mains Voltage: Wired at factory for one of the following voltages: 100, 110, 120, 220, 230, 240V, 50 to 60Hz.
Power Consumption (rms) : 30 Watts nominal, 38 Watts maximum.
Size: 6 ½" (165 mm) Height, 8 ½" (216 mm) Width, 14 5/8" (371 mm) Depth.
Mass: 22 lbs. (10Kg)
Artemis LA-1
Tube Line Pre Amp



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