buget used amp ?

400 ish :) 500 max

thegoldenear
Adcom GTP-500ii, the amp will be power Thiel cs 1.6. The Pre Amp and Speakers will not be replaced.

 Thiel cs 1.6 they’re not the easiest to drive, especially around the 100-200hz area,
https://www.stereophile.com/images/archivesart/T16fig1.jpg
you still need a good gutsy amp.

I suggest a used John Curl designed Halo A23 $600-$2K
https://parasound.com/product-images/a23_high_angle_black.jpg
https://www.hifishark.com/search?q=Parasound+A23

Or if you can afford the bigger A21 $1k to $3k
https://parasound.com/a21.php
https://www.hifishark.com/search?q=Parasound+A21

They started making these back in 2003 hence the price spread,
these will drive those speakers effortlessly.

Cheers George

thank you George

What sound characteristics are most important to you?

thegoldenear OP117 posts 03-11-2021 1:56pmthank you George

yeah these ones right in your price range

https://www.usaudiomart.com/details/649714902-parasound-a23-power-amplifier/

https://www.usaudiomart.com/details/649711066-parasound-a23-stereo-amplifier/ 

https://www.usaudiomart.com/details/649714167-parasound-a23-silver-gorgeous-double-boxed-shipping/
Cheers George