Muffsy Phono Kits
Hifi Preamps for your Record Player

Muffsy Phono Kits offers record player preamplifiers for all Moving Coil, Moving Iron and Moving Magnet cartridges.

Complete DIY Hifi Phono Kits

Muffsy Phono Kits offers high-quality audio kits that are designed for music enthusiasts of all levels. Our kits allow you to build your own record player preamplifiers with ease and get the best sound out of your vinyl collection.


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Buy the Muffsy Phono Kits

The Muffsy kits are available on Tindie, with the Muffsy Phono Preamp and the Muffsy MC Head Amp starting at $99.


Complete your build with the power supply and the back panel. All kits come with every necessary component, except the enclosure and AC wall adapter.


Gerbers are available for free if you want to make your own PCBs.

Detailed Build Instructions

We are dedicated to providing the best possible experience for our customers. We believe that building your own hifi equipment should be easy and enjoyable, and we have created step-by-step instructions to make that possible.

Enjoy the experience of having built your own hifi equipment with kits that are designed for you to succeed whether you are a beginner or a pro.

Have a look at how to build the Muffsy Phono Preamp or the Muffsy MC Head Amp before you decide to construct one yourself.

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What Others Are Saying

The Muffsy kits have a product rating of 4.94 out of 5 stars from more than 1,000 orders. Below are a handful of testimonials.

Visit our shop at Tindie to see all customer reviews.

Audio Science Review

Review of the Muffsy Phono Preamp, with measurements.


The RIAA curve accuracy:

When you are a DIYer, you also have the option to buy a little extra capacitors and match them better to the ideal values. This unit I have does have better matched capacitors than would be expected from random choice. -1 dB was at 10 Hz and variations were within +/- 0.1 dB from 50 Hz- 20 kHz. Excellent result.

Five-star Review from Kaylyn

Well organized kit.
Kit is very well organized. I appreciate the resistors being labeled and sorted. Simple and thorough instructions. Would be a good project for a beginner. Component selection and quality is fantastic.





Five-star Review from Timm

Wonderful DIY Phono-Preamp, perfectly documented.

I see why there is a waiting time for this preamp - it is superb sounding, way beyond its price may suggest. The build guide is easy to follow and crystal clear. I built the PP-4 with the Muffsy PSU and it worked perfect from the beginning.


Shipping was blazing fast, I only can recommend the PP-4 and the matching PSU.


Five-star Review from Kevin

Excellent preamp and the service is fantastic.
Built the preamp with the power supply. Works first time no problems. Sounds great on standard settings but will adjust input impedance and gain for fun. The service from Skrodahl was excellent and very generous. was excellent and very generous. 

I highly recommend buying from him. It was great fun building the kit and very rewarding listening to my records through something I built.
Thanks for a great experience.

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I sell on Tindie

Muffsy Phono Preamp Specifications:

Total Harmonic Distortion: 0.00081%
Total Harmonic Distortion + Noise: 0.01935%
Signal to Noise Ratio: 82.3 dB (0 dBV output)
Intermodulation Distortion: 0.0195% (ITU-R)

Crosstalk: -102 dB

Dynamic Range: > 110 dB (THD+N < 1%)

RIAA Compliance: +/- 0.15 dB (20-20.000 Hz)

RIAA Equalization: Passive

Gain at 1 kHz: 32-43 dB, in four steps

Input Impedance: 17k-150k ohm, in fifteen steps

Input Capacitance: Optional

PCB Size: 84 x 56 mm

Muffsy MC Head Amp Specifications:

Total Harmonic Distortion: < 0.1%

Total Harmonic Distortion + Noise: < 0.1%

Signal to Noise Ratio: 71.8 dB (rel to 0.5 mV input)

Intermodulation Distortion: 0.001% (ITU-R)

Dynamic Range: > 110 dB (rel to 0 dBV)

Frequency Response: +0 / -0.1 dB (20-20.000 Hz)

Gain: 24.6 dB

Input Impedance: 50-300 ohm, in four steps

PCB Size: 84 x 59.4 mm

Measurements at 1 kHz, 0 dBV output, if not stated otherwise

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