OPUS 21

Can anyone with an Opus 21 who uses a Ridge Street Audio amblical advise me of the performance of this upgrade please?

adampeter01-31-2009 1:12pm

ultrafitimes Details Discussions Posts This discussion Message User 12 posts 01-31-2009 at 08:37pm Copy Comment URL Report Comment Edit Delete I've had a chance to hear the opus with and without the Ridge Street and frankly, there's no comparison...