Thinking about increasing amp power beyond what my Odyssey Stratos Stereo Plus (w/ cap upgrade; 150 wpc 8 ohms/220 wpc 4 ohms)delivers. Of course I would like whatever decision I make to be as cost effective as possible, so the budget is around $1500-2000. What I like about my Stratos is it?s incredibly clean and open sounding, great retrieval of detail, great soundstaging. The reason for the upgrade is my big Polks are rated for 750 wpc, so I?m sure that more power would improve what already sounds very good. If I go for the monos I would build Darqueknight?s AI-1 dreadnought rather than strap the negative binding posts.
Options so far include:
1-converting Stratos Stereo to a Stratos Monoblock Extreme and buying another from Klaus (180 wpc 8 ohms/~270 wpc 4 ohms)
2-buying a pair of Wyred4Sound sx-500 monoblocks (250 wpc 8 ohms/ 550 wpc 4 ohms)
3-buying a W4S st-500 stereo power amp. From what I?ve read it?s essentially two monos in one chassis with 1 power cord, same power rating as #2
All amps above are rated as high current designs and all are stable to 2 ohms. They would be driven by an Odyssey Candela tube linestage.
The speakers I?ll be driving are my SDA 2.3TL?s with full Xover mods and the Solen 10 AWG 16 mH inductor. Not sure what the impedance on these speakers is, but before the Solen replaced the stock inductor it was listed as 8 ohm nominal. I?m guessing it?s dipping as low as 3.5 to 4 ohms.
Does anyone own these W4S power amps and care to comment on their experience? Online reviews I?ve read have been mostly very positive, but real world experience with Polk SDA?s would be great.
Open to other ideas too!