Masterclass LA-4 Pre-amplifier

A high quality active pre-amplifier featuring a host of inputs and outputs. The LA-4 makes a perfect combo with either the Masterclass or Sapphire power amplifiers. High-end touches include gold plated circuit boards, relay switching of all inputs and output and a sophisticated class A output stage. The LA-4 is a high gain amplifier that provides an iron fist of control over any power amplifier.  The electronic circuitry has been developed to offer the best possible sonic performance without compromise including the use of specially selected transistors and capacitors to provide the best signal preservation.  The gain stages are each powered by current shunt differential power supplies, which enable the fastest transients and most powerful crescendos with true musical empathy.

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LA-4 Pre-amplifier
LA-4 Pre-amplifier Back Panel
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​Facilities

Inputs ​                                  Four line level inputs, one tape input, one balanced

                                             input, bypass input

Outputs                                Two line level outputs, fixed tape output, balanced

                                             output

Volume Control                    Motorised remote control RC5 compatible

Recording                            Tape output defeat

Specifications

Input Sensitivity                    100mV for 1 Volt out

Maximum Output                 10 Volts

Frequency Response          +/-0.1dB 15Hz-30kHz

Bandwidth                            6Hz-300kHz

Signal to Noise                     >90dB

Distortion                              <0.006% @ 1kHz, 1 Volt out

Gross Weight  (packed)       7kgs

Dimensions                          75 x 430 x 350mm (hwd)

 

               

J E Sugden & Co Ltd, Heckmondwike, West Yorkshire. www.sugdenaudio.com

The manufacturer reserves the right to change specifications without notice.

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© 2019 J E Sugden & Co Ltd.