I am the second owner of this pre-amp. This was the middle child of the Musical Surroundings line when purchased. Per the shop where I purchased, the first owner returned this after about a week and upgraded to the SuperNova phono pre-amp.
This unit has two internal rechargable batteries, allowing you to run the unit on battery power while listening. My opinion is that this does improve sound quality.
Specs are as follows:
- Gain Switches: 40, 44, 46, 48, 50, 51.5, 52.7, 53.7, 56, 57.5, 58.4, 59.4, 60dB
- Input Loading Switches: 200pF/300pF, 30, 40, 50, 59, 80, 100, 121, 150, 243, 280, 380, 475, 660, 1k, 2k, 50k, 100k Ohms
- Discrete, dual mono circuitry
- Dimensions: 10″W x 10 7/8″D x 3″H
- Weight: 5lbs
Nice review about the unit here: https://www.hifizine.com/2011/03/musical-surroundings-nova-phonomena-phono-preamplifier