The ModBlog

We have designed tube and solid state amplifiers over the years. I have explored conventional approaches in both tube and solid state design. In all amplifier designs, I found that the simplest and most elegant solution is best. By challenging conventions, we have found or own solutions. Excluding global negative feedback allows us to streamline…

In the last post, I discussed the important elements of a good preamp and what I feel is important, as well as the design elements that I consider key to good sound and performance. Enter the LS 300, our Reference Balanced tube preamplifier. As stated previously, I prefer a preamp to have lean functions and…

I prefer to design tube preamplifiers and solid-state amplifiers. The reason for this is simple. Tubes amplify voltage. Transistors amplify current. So, what is the purpose of a preamp? In modern terms, it is a simpler function than it used to be. Today’s sources have adequate gain to drive most amplifiers to full volume. Audiophiles…

So, what is an Analog Bridge https://www.modwright.com/products/analog-bridge/, and where did it come from? The Analog bridge provides a unity gain tube circuit, with three modes of adjustment, allowing you to tailor the tone of the sound to suit your system and taste. It has a high input impedance and extremely low output impedance, allowing it…

The PH 150S https://www.modwright.com/products/ph-150/ is our Reference Tube phono stage. It is high gain, low noise and extremely high performance. Every part of the deisgn, layout and implemenation are key to it success. I will explain how we do it and why it works. The PH 150S provides 78dB max MC gain, has resistive and…

When it comes to analog, I love designing tube phono stages! But why tubes? First of all, “No Tubes, No Magic”. Tube simply provide tone, celebrate harmonics and produce sound that is organic and to my ears, sounds like music. By comparison, a SS phono stage sounds to me like the information has been processed,…

Lately I have been listening to a lot of records! I am not anti-digital. I listen to streaming content all day long. But, at the end of the day, I really just want to put a record on and relax. I have considered this before and wondered why vinyl is more relaxing for me than…

2025 has been a busy year! It has also been one of the best sales years for ModWright. The PH 9.0XT and Analog Bridge have proven themselves to be exceptional tube sources for many ModWright customers. The PH 9.0XT is our best selling product of all time by volume. It is quiet, extremely flexible, provides…