Hifi Preamps for your Record Player

The Muffsy Store

 Muffsy Phono Preamp PP-3 - Kit

The Muffsy Phono Preamp PP-3 kit is available from $69 +  shipping. Visit my Tindie shop to buy your own Muffsy Phono Preamp Kit!

 
 

Choose between NE5532AP and Burr-Brown OPA2134PA operational amplifiers for your Muffsy Phono Preamp PP-3.

 

The full kit includes:

  • 1x Muffsy PP-3 Printed Circuit Board
  • 2x NE5532AP or Burr-Brown OPA2134PA Operational Amplifiers
  • 2x Machined DIL Sockets
  • 8x Wima MKS2 Polyester Film, Box Type Capacitors
  • 4x 22 uF Electrolytic Capacitors
  • 4x 100 nF Multilayer Monolithic Ceramic Capacitors
  • 30x Resistors, 0.25W Metal Film, 1% Tolerance
  • 2x 4-Way DIP Switches
  • 2x 2-Way DIP Switches
  • 2x Terminal Blocks, 2 Connections (Audio Output)
  • 2x Terminal Blocks, 3 Connections (Audio Input and Power Connector)
  • 30 cm Two-Lead Shielded Audio Cable

 

 

Muffsy Phono Preamp PP-3 Kit Contents

Please note that an enclosure is not included in the kit. See this page for options.

 Muffsy MC Head Amp MH-1 - Kit

The Muffsy MC Head Amp kit is available from $79 + shipping. Visit my Tindie Shop to buy it.

 
 

The Muffsy MC Head Amp lets you use a low output MC cartridge (LOMC) with the MM phono stage of your choice.

The full kit includes:

 

  • 1x PCB, White with gold plated solder pads
  • 2x Linear Technology LT1115 Operational amplifiers
  • 2x Analog Devices OP177 Operational amplifiers
  • 4x 8-pin machined DIL sockets
  • 18x Multicomp MF25 resistors, 0.25W metal film, 1% tolerance, ±50ppm/°C
  • 1x 4-way DIP-switch

 

  • 4x Wima MKS2 Polyester Film, box type capacitors
  • 2x Wima FKP2 Polystyrene Film, box type capacitors
  • 2x 100 uF Electrolytic capacitors
  • 8x 100 nF Multilayer monolithic ceramic capacitors
  • 1x Terminal block, 3 connections (Power connector)
  • 30 cm Two-lead shielded audio cable

 Muffsy Hifi Dual Power Supply - Kit

 
 

The Muffsy Hifi Dual Power Supply Kit is available at $39 + shipping.


The Muffsy Hifi Dual Power Supply uses a 15-18 VAC wall adapter, so you don't have to handle mains power.

Please note that the AC wall adapter is not included in the kit. See this page for options.

This +/-15V regulated dual power supply has only 0.1 mV ripple. The PSU provides up to 200 mA of power, with heat sinks mounted. It will power four of the Muffsy PP-3 without the heat sinks.


It is designed for hifi equipment, such as the Muffsy Phono Preamp or other high quality preamps.


There is also a second regulated DC power supply on-board, capable of delivering 0.5A of 15V DC. It even has space for a current limiting LED resistor.

 Muffsy PP-3 Back Panel

The Muffsy PP-3 Back Panel is a perfect fit for a B0905 cabinet, and is delivered with the all necessary components at $25 + shipping.

 

 

 
  • The back panel
  • 4 gold plated female RCA chassis connectors (2x red + 2x black)
  • Power button
  • 2.1mm power jack
  • M3 ground screw with thumb nut and washer
  • 4 mounting screws
  • Ground cable

The Muffsy Phono Preamp is made to fit perfectly into a B0905 cabinet without any need for drilling or other modificatons. Here's the back panel to complete the build.