Audio Research SP10 Dual-Chassis Tube Preamplifier; MM/MC Phono

Audio Research SP10 Tube Preamplifier: Specifications include a dual-chassis vacuum tube design with an isolated external power supply, a 15-tube complement (12x 6DJ8/ECC88, 2x 6L6WGC, 1x 12AT7), 72 dB phono gain, 26 dB line gain, 5 Hz to 30 kHz (±0.25 dB) frequency response, dual phono inputs, and front-panel selectable cartridge loading (47k, 10k, 100, 30, and 10 ohms). As a monumental reference preamplifier in high-end audio history, the Audio Research SP10 isolates sensitive audio circuitry from power mains noise using twin chassis construction. Its versatile front-panel controls offer customizable phono loading, switchable gain, and mute options, serving as an exceptional control center capable of driving low-output moving coil cartridges directly without external step-up transformers.

Reviews widely acclaim the SP10 as a benchmark in analog reproduction, praised by audiophile critics for its lush transparency, dynamic bass, and captivating musicality. Reviewers consistently highlight its expansive 3D holographic soundstage, precise instrument focus, and intimate front-row presence. The legendary phono section receives exceptional praise for revealing micro-details, natural midrange warmth, and effortless speed across all vinyl genres.

Integrating this classic dual-chassis preamplifier into your audio system instantly elevates your vinyl and line sources to reference-grade realism. Its uncompromising engineering, comprehensive cartridge-matching flexibility, and sublime valve sonics make it an essential centerpiece for any serious audiophile seeking the pinnacle of vintage ana
With 72dB of phono gain and 15 carefully selected tubes, the SP10 reveals every nuance of a record, though low-output cartridges require ultra-low-noise tubes. Dual rack-mountable chassis, 5Hz–50kHz frequency response, and less than 0.01% THD make it a technical powerhouse. While its line stage is competent, the phono section shines, making the SP10 a must-have for vinyl enthusiasts willing to embrace its tube-dependent maintenance."

Brand	Audio Research
Type	Preamplifiers
Component Features	Onboard Phono Stage Preamp Output
MSRP	$3,700.00
SKU #	99554
Cosmetic Rating	7 - Good cosmetic condition with some minor visible cosmetic wear including some blemishes and spots on left and right sides of both the preamplifier and power supply. These do not detract from the overall wonderful appearance of this preamplifier.
Functional Notes	The customer included Soundsmith Hyperion MKII Cartridge and 4 aftermarket Power cables in this box. - Please notify Jerry once they arrive
Age	15 years or older
Owners	Unknown
Service History	None