USHER P-307A

Second-hand, in good condition, without scratches. No original package.

Preamplifier with external power supply

The P-307 is the control center for modern high-end audio systems. Its two main functions are source selection and volume control. Every detail has been carefully designed to ensure maximum accuracy in the P-307.

To prevent unwanted interactions with adjacent source components, the P-307 uses high-quality relays and an advanced switching design, ensuring that each source remains intact. In this way, all sources are isolated from one another and from the power amplifier and cables, avoiding any interference.

In the digital age, analog preamplifiers remain the most reliable and neutral components for volume control. The P-307 features a superior attenuator that delivers neutral and precise sonic performance.

Since AC power supplies generate noise, the P-307’s power supply is housed in a separate chassis. This way, the audio circuits of the P-307 are powered only by quiet, regulated DC current, isolated from any external interference as well as the audio signals themselves.

The USHER P-307 is a modern, reference-level preamplifier. It is only when the P-307 reveals palpable imaging focus and a well-defined soundstage, along with a sense of ease, rhythmic flow, and the delicate subtleties of musical details, that music listening becomes a true pleasure.

For music lovers, the USHER P-307 is the rare and affordable high-end.

Technical Specifications:

• Power consumption: 7W maximum
• Main voltage: 100V, 120V, 200V, 230V, or 240V AC at 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 Ratio: 105 dB
• Input overload: 2.34V rms
• Input impedance: 47k Ohm
• Output impedance: 120 Ohm
• Maximum output (MAIN outputs): 15.3V rms
• Frequency Response: 10Hz ~ 100kHz
• Weight: 4 kg
• Overall dimensions (w x d x h): 43 cm x 28.8 cm x 7.9 cm
• Year: 2008