Audio Research SP3 Preamplifier – Black Gold Faceplate

• Overview – The Audio Research SP3 Preamplifier – Black Gold Faceplate, released in 1973, is a tube preamplifier featuring a built-in MM phono stage and all-valve circuitry, widely regarded as one of Audio Research’s most influential designs.

• Legendary Tube Circuitry – Utilizing multiple 12AX7 and 6DJ8 vacuum tubes, the Audio Research SP3 Preamplifier – Black Gold Faceplate delivers exceptional harmonic richness, natural timbre, and remarkable musical engagement for analogue enthusiasts.

• Reference Analogue Performance – The Audio Research SP3 Preamplifier – Black Gold Faceplate is celebrated for its expansive soundstage, lifelike midrange reproduction, and highly resolving phono section, making it a sought-after vintage audiophile component.

• Specifications – All-tube preamplifier design, integrated MM phono stage, multiple line-level inputs, frequency response approximately 2Hz–100kHz, low distortion circuitry, tube-regulated power supply, RCA input and output connections.

• Dimensions – Approximately 483 mm (W) × 133 mm (H) × 286 mm (D), featuring the distinctive Black Gold faceplate and classic full-width chassis construction.

• Weight – Approximately 8–10 kg, reflecting substantial transformer construction, premium valve circuitry, and robust chassis engineering designed for long-term reliability.