Audio Research SP-15

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The Audio Research SP-15 is a phono preamplifier designed for audiophiles who demand the highest level of sound quality from their vinyl playback system. Some of its standout features include:1. EMI/RFI filtering: The SP-15 employs advanced circuitry to reject electromagnetic interference (EMI) and radio frequency interference (RFI) that can interfere with the performance of the cartridge and tonearm.2. Vacuum tube technology: The SP-15 uses vacuum tubes to generate a rich, warm sound that is highly detailed and delicate. This technology helps to reproduce the subtle nuances of vinyl records.3. High-quality components: The SP-15 boasts premium components such as Polypropylene capacitors, high-quality resistors, and gold-plated RCA connectors. These components contribute to its exceptional sonic performance.4. Fully discrete circuitry: The SP-15 is a fully discrete circuit design, meaning that every stage of the amplification process is implemented right down to the transistor level, as opposed to utilizing ICs. Discrete components allow greater control over the sound’s timbre, tone, and dynamics.5. Selectable cartridge loading: The SP-15 supports a wide range of cartridges, thanks to 8 selectable loading capacities with settings from 10 ohms to 470 ohms. This is essential to optimize the performance of different cartridge types.6. Switchable subsonic filter: The SP-15 offers a switchable subsonic filter that helps to eliminate low-frequency noise, motor hum, and rumble commonly found in vinyl records, providing a more immersive listening experience.The Audio Research SP-15 phono preamplifier is a high-end product that delivers exceptional analog sound quality. Its unique combination of EMI/RFI filtering, vacuum tube technology, fully discrete circuitry, and premium components makes it an exceptional choice for dedicated vinyl enthusiasts who demand the finest audio reproduction possible.

Preamp Output: 2V (80V max)
Frequency Response: 0.2Hz to 100kHz
Distortion: 0.005%
Gain: 75dB (mm), 29dB (line)
Input Sensitivity:
Signal to Noise Ratio: 76dB (mm), 110dB (line)
Line Output:
Dimensions: 480 x 134 x 260 mm
Weight: 6.4 kg
Year: 1988
Price: