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Audio Research SP17 Preamplifier – High-End Tube Line Stage
The Audio Research SP17 is a high-quality tube preamplifier made in the USA, combining classic tube musicality with modern circuit design.
This unit is the line-stage version without an integrated phono preamplifier, making it ideal for users who prefer a pure line stage or an external phono solution.
Technical Specifications
- Type: Tube preamplifier (line stage only, no phono)
- Tube Complement: 2 × 6H30 (line stage)
- Circuitry: Fully balanced signal path
- Inputs: Multiple line-level inputs
- Outputs: Balanced XLR, single-ended RCA
- Volume Control: Precision relay-controlled
- Remote Control: Yes
- Manufactured in: USA
Condition
- Very well preserved overall condition
- Fully functional – all features operate correctly
- Carefully maintained, from a non-smoking environment
Sound & Character
The Audio Research SP17 delivers an open, neutral, and highly detailed sound presentation.
It offers a wide and precisely focused soundstage, excellent resolution, and very natural reproduction of voices and instruments.
True to the Audio Research philosophy, the SP17 combines tube musicality with a fast, controlled, and modern voicing, free from excessive warmth or coloration.
Technology & Features
- 6H30 tubes for stability, long lifespan, and consistent sonic performance
- Fully balanced architecture for minimal distortion and maximum dynamics
- Very low noise floor
- Pure line-stage design – ideal when paired with external phono preamplifiers
- Outstanding build quality typical of Audio Research
Applications
- Reference-grade line preamplifier in high-end audio systems
- Ideal partner for balanced power amplifiers
- For listeners seeking tube sound with precision and control
- Perfect for use with external phono stages or digital sources
Included
- Audio Research SP17 preamplifier
- Power cord
- Remote control
- (Optional: user manual as copy or PDF)
Conclusion
The Audio Research SP17 line-stage version is a no-compromise high-end preamplifier for discerning listeners.
It combines classic tube technology, modern neutrality, and exceptional build quality in a pure line-stage design.
A refined audiophile preamplifier with precision, character, and long-term reliability.
The A1 arrived safely with me. The device was really well packaged by you and is visually in perfect condition for its age! In the meantime I have carried out some listening tests (with my rather modest components: Nuber nuWave floorstanding speakers, Dual 704 with Vinylmaster Silver and Technics Sl 1500 with Goldring IGC 910). In comparison, my Yamaha A-960, which has also been overhauled, can't keep up. The A1 reproduces the sounds extremely cleanly and precisely with great depth and pleasant dynamics, really great sound! More quality than I expected.
Yamaha CX-800 preamplifier
Hello Marc, the delivery arrived safely, I am very satisfied, thank you very much, I will definitely come back and would like to choose and buy something from you.
Got a Braun CC4 delivered today! Very good packaging !!! Top device and fair price. I bought a Braun PA4/2 about a year ago and I'm still very happy with it. I can only recommend this tube to anyone looking for a good nostalgic device !!!
The parcel arrived safely today. The packaging itself was simply second to none and the turntable is in excellent condition as described. I set it up quickly, the cartridge alignment was perfect, everything seems to work flawlessly. In short, I'm really impressed so far! I hope to play some more records this weekend and report back. Thank you very much! Best regards, Marek
PS: Thanks also for the instructions and the gift!
Hello. The nad tuner arrived today, big praise for the fast delivery, excellent packaging, really professional!!!! The tuner is really in top condition. Excellently received, great! Thank you very much. Greetings from Zagreb!