Classico! As they say in Italy. But the brand is from the U.S., we hear you exclaim. That’s absolutely right, but in the land of the boot, they love it. Italians are sure to respond to this ad, so beat them to it. The Audio Research SP-10 MK2 is a two-channel tube preamplifier. A true delight—it sounds absolutely incredible. Come experience it for yourself.
Fully inspected and evaluated by Audio Research specialist Joost from The Electric 4, which is also located here in Woerden. Just received 12 (matched) new GOLD Lion 6922 tubes, as well as a power supply tube.
The Audio Research SP-10 MK2 is a high-end tube preamplifier known for its exceptional sound quality and accurate reproduction. This preamplifier consists of two separate units: the main unit and an external power supply, which ensures optimal isolation of the audio signal and minimal interference.
With a comprehensive phono section, the Audio Research SP-10 MK2 offers two independent phono inputs with adjustable impedance, making it compatible with a variety of turntables and cartridges. The line stage features multiple inputs for sources such as tuners and CD players, as well as two tape monitor loops.
The Audio Research SP-10 MK2’s sound reproduction is characterized by a wide and deep stereo image, with precise placement of instruments and voices. The dynamic range and level of detail create an immersive listening experience, with both high and low frequencies reproduced clearly and in balance.
Would you like to experience the Audio Research SP-10 MK2 for yourself? Schedule a listening session to discover the unique qualities of this preamplifier.
Frequency response: 1 Hz to 100 kHz Total harmonic distortion: 0.01% Gain: 72 dB (MM), 26 dB (line) Signal-to-noise ratio: 90 dB (line) Output: 2 V (pre-out), 60 V (pre-out max) Tubes: 12 x ECC88/6DJ8, 2 x 6L6WGC, 1 x 12AT7 Dimensions: 480 x 134 x 260 mm Weight: 10 kg
Audio Research's SP-10 MK2 is praised for its exceptional transparency and detail. Designed by a team led by William Z. Johnson, the preamplifier is a paragon of reliability and craftsmanship in the audio industry. It utilizes high-quality vacuum tubes and precision-selected components. For the internal wiring, Litz wires are used to minimize signal loss. The sturdy chassis is made of anodized aluminum for a sleek appearance and durability. It is manufactured in the U.S., with a focus on precise and meticulous assembly.
Audio Research was founded in 1970 in Minneapolis, Minnesota, United States, by William Zane Johnson. The company began developing electronic tube equipment, starting with the SP-1 preamplifier. Over the years, the brand introduced several products, including the D-150 power amplifier in 1974 and the original REF1 in 1995. Audio Research moved its headquarters to Maple Grove, Minnesota, in 2007. In 2020, the company was acquired by AR Tube Audio Corporation, led by former employees. Audio Research manufactures all of its products in the United States and focuses on manual assembly of equipment. Repairs and maintenance can be done in-house. The company uses hand-wired point-to-point wiring combined with printed circuit boards. Documentation and schematics of products since 1970 are available through the company, and parts are kept in its own warehouse.
