Artemis Labs SP-1 Super 300B Stereo Power Amplifier

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Artemis Labs SP-1 Super 300B Stereo Power Amplifier

 
Artemis Labs SP-1

 

 

Artemis Labs SP-1

Stereo Amplifier in 2 Chassis

 

The Artemis Labs SP-1 Stereo Power Amplifier is a no-compromise purist design. It is designed to get the most from the •super 300Bs• such as the KR 300BXLS and Full Music 300B+, delivering from 13 to 18 watts (depending on the tube type) of clean single-ended power. Careful power supply filtering and regulation of critical voltages ensure stable, quiet operation.

 

All aspects of the design were done by John Atwood of One Electron•.

Given that the SP-1 amplifier puts out about 15 watts per channel, it must be used with relatively efficient loudspeakers. The minimum efficiency required depends on many factors including room size, room absorption, preferred listening levels, etc., but in general, an efficiency of 90dB or higher per watt at 1 meter is needed. Work with your dealer for the best speaker combination for your listening set-up.

 

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Artemis Labs SP-1 Key Features

 

Stereo power amplifier on two chassis:
stereo amplifier and power supply.
Power output per channel before clipping:
14 Watts rms
Output impedances available:
4 and 8 ohms
Frequency response at 10 Watts output:
20Hz to 35KHz +/- 1dB
Maximum THD distortion before clipping:
3%
Input impedance:
100K
Input sensitivity:
0.8Vrms for full output power
Power consumption:
525 Watts
Line voltages available:
100, 110, 120, 220, 230, 240V (selected at factory), 50 or 60Hz

 

 

 

 

 

* Specifications measured with KR 300BXLS tubes installed

 

 

 

 

 

Artemis Labs SP-1 Specifications

 

Input Impedance: 100K ohms.
Power Gain: 0.7VRMS in for 10W out (1KHz)
Frequency Response & Distortion: (measured with KR 300BXLS tubes)
1 Watt Output:
Frequency Response: 14Hz • 38KHz • 1dB
THD+N at 1KHz, < 0.5%
10 Watts Output:
Frequency Response: 15Hz • 35KHz • 1dB
THD+N at 1KHz, < 1.5%
Output for 5%THD (1KHz): 13 to 18W, depending on output tube
Damping Factor: (1KHz, 5W): 4.8
Output Noise: (grounded input, 8 ohm output into 8 ohm load, rms detector):
22Hz - 30KHz: < -88dB below 10W output
• A-weighted•: < -105dB below 10W output
Crosstalk:
1KHz: < -81dB
20KHz: < -57dB
Mains Voltage: Wired at factory for one of the following voltages: 100, 110, 120, 220, 230, 240V, 50 to 60Hz.
Power Consumption when powered-off (rms): 2.3 Watts nominal
Power Consumption when powered-on (rms): 340 Watts nominal
Size:
Power Supply Chassis: 9 •" (241 mm) Height, 12 •" (311 mm) Width, 13 3/8" (340 mm) Depth
Amplifier Chassis: 9 •" (241 mm) Height, 12 •" (311 mm) Width, 16 3/4" (425 mm) Depth
Mass: Power Supply Chassis: 51 lbs. (23.2Kg)
Amplifier Chassis: 55 lbs. (25Kg)

 

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More information can be found in the following pdf file downloads :

Artemis Labs SP-1 User Manual

   

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