Audio Research Reference 6 Line Preamplifier
The Reference 6 is the preamp that redefined what modern tube sound could be: dimensional, dynamic, and breathtakingly alive. It sits in that rare space where engineering precision meets pure emotion, a hallmark of Audio Research’s best work. Hand-built in Minnesota, this unit embodies five decades of refinement from one of the most respected names in high-end audio.
Inside, you’ll find six 6H30 tubes in a dual-mono configuration, fully balanced circuitry, and massive power reserves for lightning-fast transient response and vanishingly low noise. Sonically, the REF 6 has a sense of presence.
This particular unit is in outstanding condition, with minimal signs of use. It’s been fully bench-tested and certified by our technicians, ensuring it meets factory performance. The brushed silver chassis still gleams, and the display is crisp and bright. Remote, manual and box included.
Note: Local Pickup in Portland Only
Return Policy
Return Policy
We offer a 3-day return window on all purchases. Returns made to a credit or debit card will incur a 5 percent processing fee. Shipping costs, both to and from, are the responsibility of the customer if applicable.
After the 3-day window and up to 3 weeks from the date of purchase, items may still be returned, subject to a 20 percent restocking fee.
For shipped orders, customers must notify us within 3 days of receiving the item to initiate a return. Once the item is received back in the same condition it was sent, we will issue a refund minus all shipping charges and a 5 percent credit card processing fee.
Need Help? View our services
Need Help? View our services
The Reference 6 is the preamp that redefined what modern tube sound could be: dimensional, dynamic, and breathtakingly alive. It sits in that rare space where engineering precision meets pure emotion, a hallmark of Audio Research’s best work. Hand-built in Minnesota, this unit embodies five decades of refinement from one of the most respected names in high-end audio.
Inside, you’ll find six 6H30 tubes in a dual-mono configuration, fully balanced circuitry, and massive power reserves for lightning-fast transient response and vanishingly low noise. Sonically, the REF 6 has a sense of presence.
This particular unit is in outstanding condition, with minimal signs of use. It’s been fully bench-tested and certified by our technicians, ensuring it meets factory performance. The brushed silver chassis still gleams, and the display is crisp and bright. Remote, manual and box included.
Note: Local Pickup in Portland Only