HP N31.5 manual Linked amplifiers? you ask

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“Linked amplifiers?” you ask

The communication required between preamplifier and power amplifier(s) is more limited than between other components. In particular, the new 300 series Mark Levinson amplifiers will:

toggle between standby and operate in conjunction with the Nº38(S) they are Linked to;

when in standby, all of the standby indicator LEDs (sources, preamp and power amps) blink in sync with one another;

report certain fault conditions to the preamplifier if they must shut down for some reason.

For this reason, it made sense to define a somewhat simpler communications Link between preamps and power amps. In this case, the Nº38 or Nº38S acts as the “master” to the power amplifier(s) “slave.” Multiple amps may be daisy- chained via their slave in and slave out ports. The Nº38 runs this smaller “net- work” and passes necessary information back and forth as needed.

Hence, our seemingly confusing nomenclature on the rear panels of the various products. “Master” is connected to “Slave In”, then the daisy-chain continues to Slave Out, to Slave In, to Slave Out, etc., until you reach the preamplifier’s Slave input. From there, you connect the Nº38’s Master to the power amp’s Slave In. If you have more than one amp in the system, daisy chain them Slave Out to Slave In (up to a maximum of six amplifiers). (See sample diagram below.)

 

slave out

Nº37

 

digital output

slave in

 

Link

 

cable

digital input

master

Nº36

 

analog output

 

Link

cable

any input

slave

Nº38

master

Link

cable

slave in

Nº333

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Contents Operating Manual Page Important Safety Instructions Table of Contents Introduction to Programming Unpacking and Placement Operating Voltage Frequency Quick Start… Warm up/break-in period Special Design Features Industrial Design Convenience Features Communications Links Setup and Installation Repeat this procedure for the other three spikes Connect a Digital Output to Your Processor Placement of Your Transport Insert Batteries in the Remote Control Front Panel See Top Panel Repeat A-B Program Review Top Panel Search Reverse Next CD Transport Assembly To overcome the magnet, you’ll need to give it a firm pull Display Infrared Receiver and Transmitter Semblies Remote ControlNumeric Keypad No30 on No31, for example Miscellaneous Controls Battery Compartment Feet or less Class Laser Product Rear PanelAC Power Cord Socket Digital OUTPUT, Eiaj Optical Basic Operation Page Page Page Introduction to Programming Delete Programming Advanced Programming Page Setting Options Available even without Linking Auto-Standby Madrigal Communications Link Linked amplifiers? you ask Conductor Source Component Link Cable Conductor Amp-Amp Link Cable Using Learning Remote Controls Place the Nº31.5 in ITS Front Panel Teaching Mode Operate Troubleshooting Linked Functions DON’T Work Care and Maintenance Canadian Warranty Obtaining Service Specifications Dimensions Installation Notes Page Madrigal Audio Laboratories, Inc. All rights reserved