I got it in my head that I was going to build a DIY phono preamp for my turntable. I started looking around to see which plans were available. Although I had soldered simple connections in the past, I'm a beginner when it comes to audio components or printed circuit boards. First, the level of difficulty had to be within my capability. Secondly, the parts had to be easy to source. I chose the Muffsy kit because it had a track record with years of what appeared to be crowd-sourced collaborative development. Plus, the features and flexibility can't be beat for the price. If I move to a different cartridge that requires different gain or impedance, the Muffsy will still work. Ordering was easy and shipping was fast. I ordered the entire kit with power supply board and back panel. I sourced the power supply components from a local USA supplier, and found the enclosure on the big auction site. Assembly went pretty smoothly for a beginner. Whenever I had a question, the seller always got back to me within hours. Finally, it works and sounds good! How exciting it was to connect the cables, turn the power on, and out came nice, clean sound. I'm very pleased.
Nov. 8, 2015
excellent pre-amp, clear instructions, fast shipment
Had a slight issue and skrodahl was understanding and went above and beyond what was necessary to remedy the situation. Excellent service and a great little preamp with some of the best instructions/documentation I have seen for diyaudio yet.
Also grabbed the power supply board as well and like others have said would have liked a parts kit for this as well looking on the board build page gives a list of all components needed and sourcing these on Digi-key (for canadians) or Mouser (american) it was a breeze.
Response from muffsy | Nov. 24, 2015
Hi Stephen, You'll be pleased to see that the power supply now comes as a kit. The documentation has been updated based on feedback from yourself and others.
This is a quality kit that arrived very quickly.The online instructions were well explained and had detailed pictures.I am also building the power supply and wish it was also a kit with all the parts included.
For the price, I'm glad I bought it and hope to see more of your kits in the future. Thanks Da,
Response from muffsy | Oct. 22, 2015
Thanks for the great review Daniel.
Mouser and Farnell component alternatives have now been added to the instructions, I hope that will improve the experience: http://muffsy.com/build-the-muffsy-psu.html
I ordered this product during the weekends, and two days later I already got it. Shipped from Sweden to The Netherlands in just two days. What more could you wish for? The PCB itself is of good quality; no misaligned stuff here.
I'm currently building it and sourcing the parts along the way. It would be handy if it came with a bill of material needed, just to keep the overview. Then again, there is enough written about it on the internet - so it doesn't pose a problem at all. Just for the lazy ones under us. Overall, I would definitely recommend it to any enthousiastic DIY'er.
Sept. 22, 2015
Excellent low cost DIY phono stage with lots of options
Even a complete novice can build this kit. The instructions and documentation are the best I've ever seen. The Muffsy web site even provides instructions to learn to solder. You can purchase a good quality temperature controller solder station at Amazon for less than $50. I built my phono stage using the recommended aluminum enclosure that can be found on Ebay. Note this is a phono stage for all moving magnet / moving iron cartridges as well as high output moving coil designs.
My build includes signal path Vishay nude resistors sourced from Texas Components and Vishay MKP film resistor sourced through Mouser. I decided to also use the Muffsy power supply with 18V wall wart. You can get crazy and try other IC's and even better capacitors. For those with moving coil cartridges you can purchase a larger enclosure and integrate some nice Lundahl transformers. as a step up stage.
I have not quite finished with my build but I anticipate the Muffsy will indeed sound very good.
I am a long time DIY-er, and I built many phono stages in the last 15 years. Let me tell you this one is one of the best RIAA what I ever had. Actually much better than many factory made it. I ordered the PCBs only because I have many parts at home. The work was simple joy with these PCBs. I tried it with few different opamps like NE5532, OPA2134, LM4562. All sounds great, just a matter of taste which one do you like the most. I highly recommend this phone stage for every beginner and professional DIY-ers !
I ordered this kit with upgraded components and opamps because I wanted to build my own RIAA. I was using a Musical Fidelity V90 LPS and didn't expect this one to be any better. Boy was I wrong! Powered by 2x9V batteries it sounds amazing. I never thought that a phono stage could make that big difference. The MF RIAA was sold immediately. With adjustable input impedance and low capacitance It's a perfect match for my Audio Technica AT150MLX
This kit is perfect for both beginners and novices. The PCB have great component location markings and also all resistors are properly marked with it's resistance value so It's quick and easy to populate the board. I double checked all resistors with a DMM and there was no errors in the marking. There's even soldering wire in the kit so all you need to build it is a soldering iron, a wire cutter and 60 min of spare time.
Skrodahl offers excellent customer service and very quick shipping. If you need a great phono stage, look nowhere else.