This ad is for one pair of No. 53 monobloc amplifiers. I am the original owner; these No. 53s are in very good condition and have very low hours, original crates/packing are included. They have just been checked out from top to bottom by the Mark Levinson service center United Radio in East Syracuse, NY.
The Nº53 demonstrates a phenomenal level of
performance capability with a larger dynamic range, cleaner
operation, and higher power levels through proprietary
Interleaved Power Technology (IPT). The Nº53 can pass a musical
signal with utter integrity, regardless of how demanding that signal
and the loudspeakers used might be.
The Nº53 is capable of generating truly phenomenal power levels
into virtually any speaker load to support both instantaneous and
continuous demands. More impressive still, the Nº53 accomplishes
this feat without the slightest change in performance capability.
Unlike most amplifiers, the Nº53 has superbly efficient power
management, maintaining a constant thermally-balanced operating
temperature no matter how hard or long the amplifier is driven.
The Nº53 design incorporates the best qualities of traditional Mark
Levinson power amplifiers while adding new IPT technology for
vastly superior sonic performance and a noise floor so low, it must
be experienced to be believed. From the isolated input circuitry to
the unique Mark Levinson binding posts, special care was taken to
minimize the introduction of noise. The input board is in a separate
compartment, totally isolated from the other circuitry. Whether the
input signal is single-ended or balanced, the input stage treats all
incoming signals as balanced to maximize the rejection of common
mode signals, preventing introduced noise from being applied to
With phenomenal output power capability, a larger dynamic range,
cleaner operation, higher switching frequency, and a much lower
noise floor than even most traditional linear amplifiers, the Nº53
provides extraordinary audio performance and proves once again
that Mark Levinson power amplifiers truly represent the finest
audio amplifiers available.