I tested out the LOUDNESS and TONE controls on the 509x but the change
in the sound was not that prominent when I heard it. Mind you I did not
have my glasses on and was operating a little blind. The tune that was
playing maybe not the best to hear these features at work.
That room needs better lighting, becauseÂ
Something wonky seems to be going on.
When I heard the 509 with the Wilsons I had to turn the treble and bass way down. This is the same setup that originally had the speakers wired out of phase, but it let me test the tone controls. :)
The 509x has an extra transistor on each leg on each channel, along with a stiffer power supply, which should lower the output impedance significantly, but below a certain point, I've heard lots of amps with allegedly higher damping factor which did not actually sound better in terms of bass or transient response.
You know gang, I got pretty lucky, there was a lot wrong with the setup when I heard the 509. There was not a 507 on display. Let me list it all out:
- Wilsons were wired out of phase
- Serious digititis (from Marantz player?)
- Treble and bass were way too high
- Grip and control on speakers wasn't that great
I still bought the 507 because it was half off and I thought I knew all the issues I was hearing while auditioning and that they'd be cured when I got it home. I was really lucky that I was right. Mayhap the issue was the cabling? Or there was a DSP at work somewhere mucking with the sound. I really don't know, but it was a real relief when the amp started playing at home.
The Dagostino / Wilson setup right next to this was, by comparison, absolutely lovely to listen to. How you can listen to that, then turn 90 degrees and listen to the system I listened to without thinking something was wrong I have no idea.
Best,
E