Specifications

Passive biamping

wiring diagram

DUAL MONAURAL POWER AMPLIFIER Nº 333

communication ports

remote turn-on jacks

~ac mains

inputs inputs

Balanced Y-adapter

from preamplifier

loudspeaker terminals

—treble—

—bass—

“Horizontal” biamping refers to the practice of using one amplifier for left and

right low frequencies, and another for the high frequencies. For example, one

might use a Nº333 for the bass and a Nº331 for the mids and highs (since the low

frequencies typically require the greatest portion of the available power).

“Vertical” biamping (illustrated above) refers to the practice of using a single ste-

reo amplifier for each loudspeaker (say, a Nº332 driving each loudspeaker). Verti-

cal biamping allows the amplifier to be placed extremely close to each speaker,

keeping speaker leads as short as possible.

To facilitate biamping, all Mark Levinson power amplifiers have the same voltage

gain and input sensitivity (for 2.83V out into 8Ω). Because of this fact, you should

not have to concern yourself with adjusting the relative volumes of the bass and

treble sections of your loudspeakers—if they sounded good with a single ampli-

fier, they should sound better when biamplified.