Atma-Sphere M50/M60 OTL Monoblock Amplifiers

Up for your consideration is an excellent pair of updated 60 watt OTL mono amps from Atma-Sphere. Originally constructed as M-50s, these amps have been upgraded to current M-60 Mark III status internally; while maintaining the original casework of the M-50. Current pricing on M-60 Mark III amps is upwards of $7,000.  Manual included.

Single ended (RCA) and balanced inputs. Prefer local sale, or may deliver within 200 miles.

Each monoblock amp has the following tube requirement and tubes installed:

    Requirement                        

    8 – 6AS7G/6H13C             

    2 – 6SN7/5962                    

    2 – 12AT7                            

Installed

8 – 6AS7G/6H13C (Russian)

2 – RCA Red Base 5692

2 – Mullard Gold Pin 12AT7

Spare Tubes included:

29 – 6AS7G/6H13C

19 – 6SN7GT/B

$2,500 obo

Include 3.5% for PayPal fee