Atma-sphere MP-3 Preamplifiers

I have this preamp in combination with the M60 power amplifiers from Atma-Sphere. Other stuff is Krell, Thorens, Ortofon and Quad ESL. I listen to music in a concentrated way on a daily basis. The performance of this preamplifier is absolutely stellar,...

Purchased used from the an Audiogon web seller. Paid $1800 + shipping. Has the phono stage and regulator upgrade. Familiar with the MP-1, my MP-3 is every bit as involving a preamp as the larger dual chassis product. The MP-3 is very well made, and the...

My MP-3 has the Teflon cap and power supply regulator options.

Unit owned included phono stage and teflon-cap upgrade. Stock phono stage tubes sound rough and 2-dimensional, and should be replaced. Phono stage VERY noisy. Had warranty issues that required sending the unit back to the factory two times. Poor build...