Any NHT Classic Four owners biamping?

I was shocked when I hooked the modified Classic 4s up to my Pass Labs X350.5 before I delivered the speakers to my friend. Difference is they now disappear. They have such a natural tonal balance. The timing is perfect. The sound stage is deep and wide. They sure make my audio friend's shake their heads in disbelief. The moded classic 4s had a much better sound than a set of Focal Utopia Divas. The only speakers in my system that sounded better was my highly modified set of Apogee Duettas and a stock set of B&W 802Ds.

Cool thanks for the response. The tweeter mod is a little more than I want to tackle right now, but I would consider upgrading the crossovers. DO you have a parts list of what you used?

I keep meaning to pop the back off and take a look at the crossovers. Did the stock crossovers use decent components?

Mark

Mark,
They did not use good components. You will have to take out all the drivers to get to all the crossover parts. I will get you a list of all the values. Just use the original printed circuit boards just soldier on the better parts on and do replace the intrernal wiring. These speakers are a decent design with a great cabinet, decent midrange and woofer. NHT could have had a Giant killer at $4000.00 and would selling them like hotcakes if they would put in a little more effort.

Thanks. A list of what you used would be great. What did you replace the internal wiring with?

I was thinking of removing the subwoofer crossover (really just a low pass filter) after I biamp since I will be using a low pass filter on the amp input.

Mark

Is there any chance of getting the mods you did as my classic four drivers are dying