6SN7 6SL7 KT90 Ketch Audio Integrated Tube Amplifier Start Price USD 2,500.00 Current Price USD 2,500.00 Time Left - Bid Count 0 Buy It Now Price - Reserve Price - Start Time Friday, November 21, 2008 End Time Sunday, December 21, 2008 Location THOUSAND OAKS, CA See more about '6SN7 6SL7 KT90 Ketch Audio Integrated Tube Amplifier' Description Up for sale here is a Ketch Audio MDI-90A integrated amplifier. This gorgeous amp is made by one of the world's biggest and premium tube amplifier manufacturer. The design is based on 4 KT90 tubes operated in either the 60W Ultralinear or 35W triode mode. The higher power Ultralinear mode provides higher driving power for harder to driver speakers while the lower power triode mode is ideal for speakers with easier load and a warmer sound. Other tubes used in the amps are 2 6SL7 and 2 6SN7 operated in class-A triode mode. Both top-performing small-signal and driver tubes.One year USA warranty for the preamplifier and 30 days warranty for the tubes are provided.Audition will be gladly offered on request if you live near by or willing to come over Thousand Oaks, California area. Please don't hesitate to ask for any questions you may have. Good luck bidding.Specification of the amplifier:• All  point-to- point hand wiring• Japanese Blue ALPS volume pot.• Class A, all triode front end• Output circuit ultralinear or triode switchable• 4x KT90  matched output tube • 2x 6SL7 first stage tube• 2x 6SN7 output driver tube• Slow start  circuit included• 65w RMS in ultralinear mode • 35w RMS in triode mode• Signal to noise level -90db • 20Hz-20kHz +0 – 0.5db at all• Total harmonic distortion less than 0.05% 1kHz• Suitable for 4 and 8 ohm loudspeakers• Japanese steel EI transformers with low oxygen copper • Custom hand wound output transformers• Attractive cover included• Remote control included• High quality 2W metal film & wire-wound resistors• Blue LED mains indicator• Polypropylene audio capacitors • Silver TEFLON audio cable• Ceramic valve holders for minimum leakage• Gold plated Input & speaker terminals• Four line inputs • Tape monitor circuit• 350mv input sensitivity.(high) 1.2v (low)• 120V 200watts typ,  • C E compliant• Weight: 58 lbs • Dimensions: L: 19", W: 10", H: 12"Make appointment & Welcome to audition. Please view my other items. Happy bidding!Thanks!! Place a Bid!