For years now the M-60 in its various forms has been the subject of the Soundstage!.com Hall of Fame Award, The Absolute Sound Golden Ear Award, numerous accolades in the press and on the web. The M-60 Mk. III continues that tradition with classic styling and its award-winning State-of-the-Art performance. The M-60 Mk. III gives you the features and precision performance of our larger models in a 60 watt, easy-to-live-with package. The amp operates class A and is unconditionally stable with proven reliability. The power tubes are inexpensive, readily available and do not require any matching. Now sporting a classic open chassis construction, the M-60 Mk. III sets the bar for amplifier performance.

FEATURES

• Exclusively triode-based, vacuum tube circuitry
• Class A operation
• automatic Bias- no adjustment needed
• Patented Atma-Sphere direct-coupled (OTL) output stage
• Balanced Differential Design®
• Mono chassis construction
• Easily monostrapped for greatly increased power
• Standby switch for long output tube life
• Single stage of gain
• rear-mounted XLR and RCA input connectors
• VU meter for power and tube monitoring
• Proprietary, precision grade components used throughout
• Low-noise "star" ground circuit
• Fully hand-wired electronics; no circuit boards!
• Classic open chassis construction, with Wrinkletex finish
• Three-year general warranty, one year on output tubes

OPTIONS

• custom Teflon® coupling caps $300
• V-Cap Teflon® caps $500
• Power supply boost $360
• Caddock® resistor package $1000
• polished stainless front panels (shown on the amps above) $360

SPECIFICATIONS

• 60 watts/channel into 8 ohm load/ 45 watts/ch. into 4 ohms/ 80 watts/ch. into 16 ohms
• Power bandwidth: 2 Hz - 75 kHz within 1/2 db
• Input impedance: 100Kohm single-ended, 200Kohm balanced
• Input voltage for full output: 2.83V
• Frequency response (1 watt): 1 Hz - 100 kHz within 3 dB
• Intermodulation Distortion: .05% @ full power
• THD: typically under 1% with proper setup.
• 20 Hz square wave tilt: unmeasurable
• Phase shift: less than 1 degree @ 20 kHz
• Power supply storage: 140 Joules/chassis
• Input impedance: 100K single-ended, 200K balanced
• Output section risetime: 600 V/micro-second
• Output Impedance: ~4.1 Ohms
• Feedback: 1 db
• Power consumption: 300 watts/chassis
• Tube complement: 8 6AS7/channel and 4 6SN7s
• Weight: 30 lbs./chassis
• Dim: 17" wide x 13" deep x 8" high