Audio Research M100 Mono Tube Power Amplifier; Vintage Pair

Audio Research M100 Mono Tube Power Amplifier Highlights

Product: Audio Research M100 Mono Tube Power Amplifier; Vintage Pair

Product SKU: 90391

Serial Number: 05133002, 85033006

Input Voltage: 120V

Cosmetic Description: Good cosmetic condition with some minor visible cosmetic wear including some visual scratches to the tube cage, as well as around the corner edges of both units chassis. Fortunately these blemishes are not readily visible, and do not detract from the overall wonderful appearance.

What is Included: Amplifier, Four Sovtek 6550 Tubes, Two Phillips 6550 Tubes, Four Audio Research 12AT7 Tubes, Two National 7119 Tubes, Six Audio Research 7119 Tubes, Manual, Factory Packaging

Functional Notes: Operational condition of this item is excellent, fully tested and no issues found.

Age: 15 years or older

# of Owners: 1

Tobacco Exposure: No

Service History: Service docs in Google Drive. $1400 new tube service from ARC on file. 2024

MSRP: $4990

Other Notes: 

"Audio Research M100 Monoblock Tube Power Amplifier delivers 100 watts minimum continuous at 16 ohms, 8 ohms, 4 ohms, and 2 ohms, with approximately 115 watts available at clipping. Each monoblock utilizes two matched pairs of 6550 output tubes supported by 12AT7, 6DJ8, and 7044 tubes for regulation. The design features direct and cross-coupled circuitry with an automatic servo to maintain DC balance. To ensure ease of usage, the front panel includes adjustable output tube bias with integrated indicators. The M100 provides authoritative power across a 20Hz to 20kHz range, utilizing a sophisticated power supply to maintain dynamic stability and precision.

Owners praise the M100 for its light, airy soundstage and its ability to balance tube warmth with modern precision. Reviewers describe the performance as devastatingly fabulous, noting unbelievable bass authority and musicality. This iconic piece of audio history offers an expansive soundspace and an immersive listening experience."

Shipping: Shipping within the Continental USA is $399- This includes securing to a pallet with adequate protection and shipping via FedEx Freight to a residential address anywhere in the Continental USA. This rate can be reduced by $60 if a commercial delivery address available or if item can be picked up at nearest FedEx Freight depot. FedEx Freight charges a residential delivery fee otherwise which is included in our flat rate charge.