The Artemis Labs PH-1 Phono Pre Amp is the result of several years of perfecting a simple yet extremely high quality tube-type preamp. High quality parts are used throughout and the design is rugged and reliable. The sonic qualities: tonality, detail, smoothness, and presence are outstanding. The PH-1 is optimized for medium- to high-output cartridges, either moving coil or moving magnet.
Key Features
50dB of gain with low hum and noise
Allows the use medium- to high-output cartridges.
TexTool™ ZIF socket connected to phono inputs
Allows any shunt loading resistor or capacitor to be effectively attached.
Three stage design with passive RIAA equalization
Equalization is flat within +/- 0.2dB from 20Hz to 20KHz and is flat to +/- 0.5dB to 40KHz. Last two stages have gentle
feedback and can drive as low as 8K loads without the use of cathode followers.
All key audio circuits wired point-to-point using military-style terminal boards
Sonic degradation due to fiber-glass PC boards is minimized.
One 6N1P tube, two 12AX7/ECC83 tubes and two 5687 tubes. All but 6N1P are run 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:
Mid-Band Gain (47K load, 1KHz): 52dB +/– 2dB
Frequency Response & Distortion (measured with inverse RIAA curve applied to generator):
Worst-case Loading (12K ohms, 1000pF):
Frequency Response: 25Hz – 30KHz +/– 0.5dB
THD+N at 1KHz, 2Vrms output: < 0.2%
Average Loading (47K ohms, 250pF):
Frequency Response: < 10Hz – 42KHz +/– 0.5dB
THD+N at 1KHz, 2Vrms output: < 0.2%
Maximum output voltage (47K load, 1KHz, 0.5% THD): 40Vrms
Output Noise (grounded input, 47K load, rms detector):
22Hz - 30KHz: < –59dB below 2Vrms output
“ A-weighted”: < –69dB below 2Vrms output
Crosstalk:
1KHz: < –TBDdB
20KHz: < –TBDdB
Effective Output Impedance: approx. 1300 ohms (1KHz)
Input Impedance: 47.5K ohms, lower with optional shunt resistors.
Mains Voltage: Wired at factory for one of the following voltages: 100, 110, 120, 220, 230, 240V, 50 to 60Hz.
Power Consumption (rms) : 40 Watts nominal, 49 Watts maximum.
Size: 6 ½" (165 mm) Height, 8 ½" (216 mm) Width, 14 5/8" (371 mm) Depth
Mass: 24 lbs. (11Kg)
