Usher – P-307


USHER P-307 Stereo Preamplifier

P-307 is the control center of today’s high end sound systems. Its two main functions are source selection and volume control. Every effort has been made to keep P-307 as accurate as possible.

To avoid unwanted interactions with adjacent source components, P-307 uses high-quality relays and switching designs to ensure that every source is intact. Thus all sources remain separate from one another and from the power amplifier and cables.

In the digital age, analog preamplifiers remain the most reliable and neutral-sounding component of controlling volume. P-307 uses a superior attenuator

that offers a neutral sonic performance.

Since AC power supply generates noise, P-307′s power supply is housed in a separate chassis. Thus P-307′s audio circuits are exposed only to quiet, regulated DC power and the audio signals


power consumption: 7W maximum

main voltage: 100V,120V, 200V, 230V or 240V AC@50/60Hz

inputs: 7 stereo single-ended(RCA)

1 stereo single-ended(RCA)phono

outputs: 2 stereo single-ended(RCA)

gain: 14.3 dB

S/N: 105 dB

input overload: 2.34V rms

input impedance: 47k Ohm

outputs impedance: 120 Ohm

maximum output (MAIN outputs): 15.3V rms

frequency Response: 10Hz~100kHz

weight: 4kgs

overall dimensions (w x d x h): 43 cm x 28.8 cm x 7.9 cm

shipping weight: 5 kgs /pc

shipping box (w x d x h): 56 cm x 35 cm x 16 cm

U pripremi...