NEWLY RESTORED PAIR OF DYNACOMKIII MARK IIIusedNEWLY RESTORED PAIR OF DYNACO MKIII MARK III TUBE POWER AMPSSpectacular looking and beautiful sounding pair of Mark III/MKIII tube mono blocks from DYNACO, completely rebuilt for a reliable long-term quiet and super-musical performance. Why two? One mono am...1349.00

NEWLY RESTORED PAIR OF DYNACO MKIII MARK III TUBE POWER AMPS

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Condition
10/10
Payment methods
Ships fromHoboken, 07030
Ships toUnited States
Package dimensionsunspecified
Shipping carrierunspecified
Shipping cost$80.00
Original accessoriesManual
AverageResearch Pricing

Spectacular looking and beautiful sounding pair of Mark III/MKIII tube mono blocks from DYNACO, completely rebuilt for a reliable long-term quiet and super-musical performance. Why two? One mono amp for each channel = stereo!

Professionally (and lovingly) restored by Vintage vacuum audio. For more info about our work, make sure to check our website, vintagevacuumaudio.com. Lots of cool stuff, including a vast stash of scanned 1950s and early audio magazines, all searchable by keyword.

Chassis, bottom plates, transformer bells, cages all professionally powder-coated black (no smell!) and re-silk-screened in white ink; new power cords; new RCA jacks, new circuit boards.
Power supply rebuilt. All new caps (combination of polyprop., silver mica & paper in oil.). All new resistors. All axial electrolytics are Sprague Atoms, can capacitors are Authenticap 550v/600v.
All voltages right on spec, zero hum, zero buzz, totally quiet, huge soundstage, deeply musical listening experience.

These are restored using Dynaco’s original circuitry, parts values, and are on original factory specs. I have tried, tested, and listened to almost all so called “mods” for this amp. All are brighter, more aggressive, and ultimately, less musical. Different, certainly. Better? Not to my ears. Unless you like bright, metallic, and solid-state sounding.

Tubes are: tubes are: two 6AN8 RCA, brand new Tube Amp Doctor GZ34 rectifiers, and a factory-matched , New in Box quad of Tung Sol 6550.

Classic American design, specs are below:

Power Output: 60 watts per channel continuous(rms). Intermodulation Distortion: Less than 1% at 60 watts; less than .5% below 50 watts. These figures apply for any conventional combination of test frequencies. Response: ±.5 dB 6 cps to over 60 kc. ±.1 dB 20 cps to 20 kc at any level between 1 mw and 60 watts. Power Response: 20 cps to 20,000 cps within 1 dB of 60 watts without exceeding 1% harmonic distortion over this range. Square Wave Response: Essentially undistorted 20 cps to 20,000 cps on loudspeaker load. Input Impedance: 500,000 ohms. Sensitivity: 1.6 volts rms input for 60 watts output. Hum and Noise: Better than 90 dB below rated output. Damping Factor: 15. Output Impedances: 4, 8, and 16 ohms (no restrapping required for changing output impedances). Size: 9" by 9" by 6-3/4" high. Weight: 28 pounds (each amps, one for each channel)

6-MONTH WARRANTY. Any issues arise, ship back I will service & return (shipping at your own cost). Warranty void if owner mods or changes parts.

Will ship worldwide

$80 flat rate shipping to continental USA.

More for international/overseas. Contact us for a quote.

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