Amplifier 擴音機 / GOLDMUND / Metis 2
Metis 2

Metis 2 - Analog Preamplifier A set of new Metis analog audio components has been created by Goldmund, replacing the company’s former SR line at even lower costs despite their much improved performance. Their Mechanical Grounding Construction is simply r

Specification

INPUT
•Input impedance: 50 kOhms
•Nominal input level: 2.25 V RMS
•Maximum input level (unbalanced): 3.6 V RMS


OUTPUT
•Output impedance: 75 Ohms
•Maximum output level (unbalanced): 3.6 V RMS


FREQUENCY RESPONSE


These values for any level to maximum output level
+/- 0.1 dB, 10 - 20 kHz
+/- 1.5 dB, 10 - 100 kHz

+/- 3 dB, 10 - 200 kHz


GROUP DELAY
•Propagation delay < 1 ms stable with frequency from DC to 100 kHz


DISTORTION


With 1 V RMS output level, 80 KHz measurement bandwidth, 600 Ohms termination impedance
THD unbalanced in to unbalanced out < 0.005% (-90 dB) flat with frequency

IMD unbalanced in to unbalanced out < 0.002% (-80 dB)


SPEED


Slew rate of the amplification stages: > 20 V/us - Rise time: < 700 ns

CROSSTALK
•Separation: > 80 dB between channels. (20 Hz – 20 kHz)


NOISE
•Signal-to noise ratio on line input: > 80 dB (0.01 Hz - 10 Mhz)
•Weighted ASA A: > 100 dB


OPERATING TEMPERATURE
•Room temperature: -30 to +40 degrees Celsius (-22 to +104 degrees Fahrenheit).
•Internal temperature: + 45 to + 65 degrees Celsius (+113 to +149 degrees Fahrenheit)


POWER SUPPLY

-1 Power Transformer
•Nominal line voltage: 110 V or 230 V
•Input voltage range: +/- 10 %.
•Maximum power consumption: 10 W


GROUNDING
•Separated ground and earth signal
•Connection between earth and ground to cancel all ground loops


SAFETY FEATURES
•Automatic switching to MUTING if the AC line drops or is interrupted


FRONT PANEL CONTROLS
•Volume Control
•Selector Input Switch
•IR Receiver for Remote


REAR PANEL CONNECTORS AND CONTROLS
•Power cord socket 3 lugs
•Voltage Selector 110/230 V
•5 pairs of RCA inputs (right and left)
•1 pair of RCA output (right and left)


POWER SUPPLY
•Power cord socket (3 lugs)
•Mains fuse (500 mA slow-blow)
•Voltage selector 110/220 V


SIZE AND WEIGHT
•Preamplifier:300 mm (11.8") W x 285 mm (11.22") D x 60 mm (2.36") H
•Power Supply: 70 mm (2.75") W x 70 mm (2.75") D x 32 mm (1.25") H
•Preamplifier Box: 360 mm (14.17") W x 360 mm (14.17") D x 112 mm (4.4") H
•Total Weight: 3.5 Kg (7.71 lb)
•Total Weight with the box: 4.5 Kg (9.92 lb)