Edward,

I ran a 557 for 8 years in an analogue system in Singapore (240VAC), and would continue to do so if I didn't now live in the US (I still have it). During the time I had it in my analogue living room system I never shut it down except to clean the area behind my gear. It performed as well on the day I retired it as the day I bought it. And I loved it.

You can be confident leaving the amp on all the time and letting it go into standby.

I never much liked Meridian's Analogue speakers but my 502/504/508 (and then 588), 577 rig, with a pair of Merlin EXL IV speaker towers, was brilliant. I still also have the Merlins here in Chicago. For Jazz (Coltrane to Krall), Classic Rock (Stones to Straights), Blues (SRV, the "Kings," Hooker), this rig acquitted itself wonderfully, with a very M sound. And classical worked very well.

Enjoy your kit.

Last edited by Richard in Chicago; 2020-09-23 16:36.
Richard
Main: 818v3, DSP7200.2x2, Prime Headphone Amp & Power Supply, Roon Nucleus+ w/Lifetime Sub., Tidal Subscription, UHD722, IP2SL-P (TCP/IP to Serial), Sony Bravia 4K TV, Intel NUC13ANHi7 Pro PC/ Win11Pro/64, iPad Air (5th gen), LinkSys MX8500 Mesh Router (X 4), LinkSys LGS116P 16 Port Switch, PS Audio Power Plant 10.
Basement: 218, DSP5200x2