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Solo Golden Tube Audio SE-40 User Manual

Solo Golden Tube Audio SE-40
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Golden Tube Audio SE-40
Page 1 of 36
Golden Tube Audio SE-40
VERSION 1.3
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Solo Golden Tube Audio SE-40 Specifications

General IconGeneral
Power Output40 Watts per channel
Signal-to-Noise Ratio (SNR)90dB
TypeTube Amplifier
InputsRCA
Output Impedance4 ohms, 8 ohms
Frequency Response20Hz - 20kHz
Total Harmonic Distortion (THD)<1%
Amplifier TypeTube Amplifier

Summary

Preface

Document Control

Details the version history and change control of the manual.

SE-40 Original Parts Diagram

Left Channel Schematic

Power Supply Schematic

Original Circuit Board v1.4 – Bottom Side

Original Circuit Board v1.4 – Top Side

SE-40 Owner's Manual

Tube Location Map

Diagram showing the correct placement of vacuum tubes in the amplifier.

Safety Instructions

Introduction

Location of the amplifier

Location of Controls

Set up

Installation of Vacuum Tubes

Step-by-step guide for correctly installing the vacuum tubes.

Connecting the Input and Output Cables

Instructions for connecting audio sources and speakers.

Connecting the AC Power Cord

Steps for safely connecting the amplifier to the mains power supply.

Operation

How to properly turn on and operate the amplifier.

Hum Noise

Explains causes of hum and how to eliminate ground loop noise.

Amplifier Operation and Maintenance

Warm-up and Burn-in Periods

Recommended warm-up and initial usage periods for optimal performance.

Continuous Play Guidelines

Guidelines for continuous operation and recommended break periods.

Bias Voltage Monitoring

Instructions for checking and adjusting bias voltage periodically.

Tube Replacement Procedure

Detailed steps for replacing vacuum tubes safely and correctly.

Bias Adjustment

SE40 Advanced Features

Zero Feedback/ Negative Feedback Adjustment

How to configure feedback settings for different tonal characteristics.

Higher Gain Application

Method to increase input gain using different tubes and jumper settings.

Mono-Bi-amp Application

Instructions to configure the amplifier for mono or bi-amping setups.

Mono Bi-Amp Application

80W High Power Mono Output Application

Multi SE-40 Applications

'RCA Differential' connection, 2 x SE-40 with SEP-1

Specifications

Problems

Biasing the Amp

What is the Proper Bias Set Value?

Defines the recommended bias voltage and its importance.

Before Starting

Pre-procedure checks and important notes before biasing.

Tools Needed

Lists the necessary tools for performing the bias adjustment procedure.

Removing the Bottom Cover

Setting the Bias

Underneath GTA SE-40

Bias cable sockets and trim pot locations

Red Plate Condition

Replacing Tubes

Factory Tubes

Information on the original tubes supplied with the SE-40 amplifier.

Factory Output Tube Cross-Reference

Factory Selectable Input Tubes

Tube Swapping

Other 6L6 Varieties

Troubleshooting

Dead channel

Common causes and solutions for a completely non-functional audio channel.

Hum

Red Glowing Tubes

Low gain

Static Noise

Bias Resistors

References

Appendix - Sovtek Tube Specs

SOVTEK 6L6WXT Specifications

SOVTEK 6SN7 Specifications

SOVTEK 6SL7 Specifications