Might sound better depending on your taste...but that would be a lateral move and not an upgrade!
Set up #1: EMP e5ti, e5Ci, and EMP e5Bi surrounds, Outlaw LFM1 Plus sub, EMP 10i10i sub
Set up #2: Def Tech SM450, CLR2002, SLS Qline surrounds and Klipsch 12wD sub
Set up #3: Philharmonics- BMR in a 2.0 system, music only
well, I just feel the Pioneer FS51 is too flat. the sound is warm, but not exciting.
If I change a more powerful receiver, is there any big change?
No. The widest range of sound available is - was - and always will be - speakers. If you were to consider changing to all tube electronics that would be a game changer.
Yamaha CX-A5000 - Acurus A100x3 & Outlaw 7075 - Salk Song Towers - Custom Selah Audio Center - Oppo 103 - Marantz TT42 ***GO SEAHAWKS *** Twas a woman who drove me to drink. I never had the decency to write and thank her ~ WC Fields