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Found 2 results

  1. Item: Tung Sol 6550 (Russian remake) - Matched Set Location: Blackburn South, 3130 Item Condition: Excellent, Reason for selling: No longer needed, sold tube amp Price: $120 + postage...sale pending Payment Method: Pickup - Cash, PayPal, DD Extra Info: Bought as a matched set (IP:47 and Gm: 6,300) from Amp Tubes. Used it to test on a Conrad Johnson LP66s, but have since sold the amp. These would have been used for less then 10 hours as I was I was trying to figure out a noise (which in the end was the pre amp tubes). Pick up from Blackburn South 3130 or post at buyers expense.
  2. Item: MFA 75B monoblocks Location: Blue mountains Price: 2000 Item Condition: i am the 2nd owner. the original owner purchased them new in the states in about 1990 - comparing them with the likes of the harman kardon citation 2. thats what he told me anyways. they have some worn writing on faceplate and the chassis sags a little under the weight of the transformers. this can all be seen in the accompanying photos. perform flawlessly Reason for selling: just too powerful for my current speakers (100 and 102 dB respectively). Payment Method: Cash, Paypal, COD , transfer etc Extra Info: MFA Systems M-75B monoblock amps (Moore-Frankland Associates), 75wpc, 1984-1989These are very nice sounding and exceptionally well built amps. They were designed by Bruce Moore (Bruce Moore Audio Designs) and Scott Frankland (Wavestream Kinetics). They use top quality parts and are hand built in the USA, using the point to point wiring method. They have unregulated power supplies (no current limiting) and run in class A up to 40 watts output, and class AB1 above that. These will ship with a set of excellent quality recently replaced (no more than 50 hrs) USA GE 6550 output tubes - two per amp. 6DJ8s are Brimars. They can also use KT88s, KT90s, and KT99s. The amps are rated at 75 watts per amp into 4,8, or 16 ohm loads. They use some of the biggest transformers of any amps in this power range and are extremely wide bandwidth (16-80khz). They sound lush and detailed but with plenty of sparkle in the highs and lots of authority and control in the bass. These are classic designs of top quality and are quite rare. The amps also have AC balance pots to fine tune them. please note the amps are 118V so a tortech stepdown transformer is included if needed pictures
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