These really do make an improvement in the sound. The difference between this and the standard model is the upgraded faster recovery diodes, a better capacitor, point to point wiring and the whole unit is given the quantum tunnel treatment with 2 million volts. Each one of these upgrades would make an audible difference so just imagine how big of a difference all four of these make together.
I had two of these units but one them already sold. Price is $150.00 for one unit. It is in perfect working condition and in excellent physical condition. I could easily rate this a 9 but I will play it safe and call it an 8. Only selling because I have already sold most of my gear and just now selling off the last remaining items.
BUYER PAYS SHIPPING AND 3.5% PAYPAL FEE. NO EXCEPTIONS!!!
I only ship to Paypal "confirmed' addresses and only to Paypal members with a "verified" identity. I use make offer so i can add fees after the transaction.
Selling As Is because that seems to be the condition needed to declare NO RETURNS.
But look at my feedback and shop with confidence.