Sunfire True Subwoofer Signature User Manual
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Sunfire True Subwoofer Signature User Manual

Sunfire true subwoofer signature: user guide
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Summary of Contents for Sunfire True Subwoofer Signature

  • Page 2: Safety Instructions

    Safety Instructions 1. Read Instructions -– All the safety and operation instructions should be read before the Sunfire Component is operated. 2. Retain Instructions — The safety and operating instructions should be kept for future reference. 3. Heed Warnings — All warnings on the Component and in these operating instructions should be followed.

  • Page 3: Table Of Contents

    Specifications ... 16 Troubleshooting guide ... 17 Limited warranty ... 19 Service assistance ... 19 To find out more about this and other Sunfire products, please visit our website: www.sunfire.com User's Manual This apparatus does not exceed the Class A/Class B (whichever is applicable) limits...

  • Page 4: Introduction

    Introduction Dear Friend: Thank you for purchasing my Sunfire True Subwoofer Signature. I hope you enjoy it and the music it makes as much as I have enjoyed creating it for you. The big breakthrough features of the subwoofer are its uncanny tracking downconverter and its long throw, high back-electromotive force driver.

  • Page 5: Overview

    Overview Your Sunfire Subwoofer is designed to give you the best possible low-frequency sound quality for your home theater experience. It incorporates a tremen- dously powerful built-in amplifier and a pair of drivers to produce tight, floor- rumbling bass down to 16 Hz, that you can feel as well as hear.

  • Page 6: Control Panel Features

    Control Panel Features 1. Power/Auto on Indicator This light is bright when the subwoofer is on, and dim when the subwoofer is in its standby mode. This is controlled by the AUTO ON/OFF circuit. The presence of an audio signal turns the unit on.

  • Page 7: Line Level Inputs

    6 1/4 amp slow-blow type fuse to protect the electronics. It is acceptable to use a 6 amp slow-blow fuse. The 230 VAC model has a 4 amp slow- blow fuse. Always unplug the power cord before inspecting or changing the fuse.

  • Page 8: Installation

    To prevent fire or shock, do not expose the unit to rain or moisture. If fluid or a foreign object should enter the unit, immediately turn off the power and contact your Sunfire Dealer. • Avoid excessive exposure to extreme cold or dust.

  • Page 9: Connections

    Connections Please consider the following when setting up your new system : • Before making or changing any connections, ALWAYS make sure that the subwoofer is unplugged from the wall and your other components are turned OFF. Also turn down the volume control of the subwoofer and your preamplifier or receiver.

  • Page 10: Location

    Location Your Sunfire Subwoofer is designed to be placed in a corner and this will produce optimum performance. Experiment with at least two corners and then decide which is the best. #1 is very good positioning. #2 is also excellent but may shake the...

  • Page 11: System Configurations

    System Configurations The following pages show some typical connections that you might make in your installation. They show how the inputs and outputs of the Sunfire Subwoofer are connected to your preamplifier or receiver. Connections to a preamplifier’s subwoofer output...
  • Page 12 “Top Gun”, for example, has loads of L-R bass information. If this is not preserved, the bass in these scenes sounds anemic. The Sunfire Subwoofer utilizes differential gain on the left and right inputs to retain both the L+R and L-R information.
  • Page 13 This is an excellent method if your speakers are small satellites or mini- monitors, and/or your power amplifier is of limited power, such as a tube amp. User's Manual...
  • Page 14 Using the speaker level inputs If you are using a receiver which does not have a subwoofer output or line level outputs (pre- outs), you can connect its speaker outputs to the subwoofer’s Speaker-Level inputs. The front speakers can still be connected to your receiver.

  • Page 15: Adjusting The Controls

    Adjusting the controls There are two main methods for adjusting the level, crossover frequency and phase of the Sunfire Subwoofer to match a system: • Bob Carver’s preferred method: By listening and making the adjustments to suit your taste. •...

  • Page 16: Specifications

    Greater than 116 dB peak SPL (includes room gain) from 16 Hz to 100 Hz. Measurement method is one meter, anechoic, including room gain. A typical Sunfire subwoofer can be expected to ‘best’ its specified minimum peak SPL by several decibels. THD:...

  • Page 17: Troubleshooting Guide

    “small.” • If the preamplifier’s subwoofer/LFE output has an adjustable crossover frequency, make sure that the Sunfire subwoofer’s own crossover point is set higher or part of the bass range will be missing. Not enough bass in a 5.1 system •...
  • Page 18 • If your subwoofer is a fair distance away from your other equipment, you may use a 15 amp extension cord as long as it has a ground connection. NOTE: Never remove the ground pin from any power cords. This is very dangerous.

  • Page 19: Limited Warranty

    Warranty to you, the owner of a new Sunfire product: The Sunfire Corporation Warranty for the True Subwoofer Signature is in effect for TWO years from the date of original retail purchase. The Sunfire Corporation Warranty covers defects in materials and workmanship.
  • Page 20 Manual part number 913-038-00 Rev A...

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