Musical Surroundings Fosgate Signature Owner's Manual

Musical Surroundings Fosgate Signature Owner's Manual

Phono stage preamplifier

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Owner's Manual

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Summary of Contents for Musical Surroundings Fosgate Signature

  • Page 1               Owner’s Manual...
  • Page 2: Table Of Contents

    Table of Contents     Read This First…………………………………….2 Introduction by Jim Fosgate……………………...3 Unpacking…………………………………………..4 Tubes and Tube shield Installation………………5 Product Placement………………………………...6 Connecting your Fosgate Signature……………..7 Phono stage settings…………………………7 & 8 Powering UP……………………………………….8 Tube Rolling………………………………………..9 Specifications……………………………………..10 Warranty and Service……………………………11    ...
  • Page 3: Read This First

    30 minutes of powering down. • No user serviceable parts are inside. Service should only be performed by Musical Surroundings or our authorized repair agents. • In case of fuse replacement (located in IEC receptacle), disconnect AC cord prior to replacement and replace ONLY with fuse of identical type and rating.
  • Page 4: Introduction By Jim Fosgate

    Introduction • The design is the result of more then 100 different hand built preamp circuits dating back to the 1970s. • All amplification is accomplished with the SRPP (push pull) configuration for the best possible linearity, lowest noise and distortion. •...
  • Page 5: Unpacking

    

Use caution when opening the cartons with a sharp edged tool not to damage any of the contents. Included with your Fosgate Signature phono stage is a pair of white gloves for handling both the unit as well as the tubes. This will avoid any finger oil from getting on the tubes that could cause irregular heating of the glass.
  • Page 6: Tubes And Tube Shield Installation

    Tube and tube shield installation Tube compliment: 2 6DJ8’s - V1 and V2 2 12AX7 - V3 and V4 2 12AT7 - V5 and V6 1 6X4 - high voltage rectifier Install the tubes: 

When inserting tubes into their sockets, be very careful not to bend the metal pins.
  • Page 7: Product Placement

    Adjust the tubes and shields to stand up straight. Placement of the preamp: The Fosgate Signature phono stage should be placed close to the turntable in order to use as short as possible phono cables between the tonearm and the unit. Position the phono stage away from hum producing sources such as motors, transformers and power cords.
  • Page 8: Connecting Your Fosgate Signature

    “phono” for convenience). The output impedance of your Fosgate Signature is low enough to drive solid state preamps down to a 10K input impedance. This is accomplished without a cathode follower or solid-state buffer in the output to affect the sound.
  • Page 9: Powering Up

    Settings: Refer to the information sheet for your phono cartridge to determine the output voltage specification and the recommended cartridge resistive loading setting or range. A pair of gain switches are located at the base of the third tube from the back of the chassis (see picture page 6, right channel visible).
  • Page 10: Tube Rolling

    30 minutes of powering down. Below is a list of equivalent tubes used in your Fosgate Signature phono stage if you wish to tube roll. Please check with your Musical Surroundings’...
  • Page 11: Specifications

    SPECIFICATIONS Gain: 42dB MM, 60dB MC Loading: 100Ω, 300Ω, 500Ω, 1kΩ, 47kΩ, 100kΩ Capacitance: 50pf Tube compliment: 2 6DJ8’s V1 and V2 2 12AX7 V3 and V4 2 12AT7 V5 and V6 1 6X4 Dimensions: 13 3/16" W x 10 3/4" D x 5 5/8" H Weight: 10 lbs 5662 Shattuck Ave Oakland, CA 94609...
  • Page 12: Warranty And Service

    If the purchaser registers the unit with Musical Surroundings by mailing in the warranty card, together with a copy of the bill of sale, within 14 days of the date of purchase, said purchaser will be registered for an extended service contract.

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