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Need help What monoblock power amps for bass?

I own a pair of Silverline Sinfonia speakers.These are very large speakers (over 240 lbs. each),96 dB and 8 ohm stable.Very aesy load for any amp,so power is not mandatory,anything over 50W/ch is OK..
They are tri-ampable.I am looking for opinions on what monoblock amps to use for bass drivers ONLY.Each Sinfonia has two 12" woofers and one 7" woofer.7" driver also contributes to midrange,so this is the trickiest part of my amplification story.I don't want mellow and soft bass,but don't want cold vocals either.
I plan to use either tube or SS monos and limit them whit a potentiometer in order to achieve a tonal balance with midrange and tweeter.Midrange and tweeter will be powered with 320B XLS SET monos (30W/ch).
The areas i am looking for in bass are - slam,speed,definition and ambience.I like fast and tight bass (often connected with SS amps),that is a priority.
Any suggestions will be very welcomed.
audiobb
atmasphere's avatar
atmasphere
11,634 posts
 
Audiobb, any idea what the impedance curve of the woofer section looks like? That will play a big role with the amp that you choose! Have you talked to Alan about this? He should be able to help you on that one.
pryso
1,912 posts
 
One of the best bass amps, and a great deal on the used market, would be from the Eagle/EKSC line. A pair of their 2 series (A, B, C) stereo amps or 400 monoblocs might be outstanding. They are fast, tight, and provide great woofer control while sounding musical without being dry and lifeless.
audiobb OP
103 posts
 
Hi Atma,

Nice to talk to you again.I know that impendance on each section (speaker is tri-wired) never changes more than +/- 10%.
Also,the whole speaker (if connected to one amp) acts exactly the same.8 ohm stable, +/- 10% maximum.
Seems an easy load for any amp.At least to me.
Alan said that tube amps work great in general (SET designs and Atmasphere OTLs), and also that Pass labs amps are also a great match.
He liked the idea of of 6 monos based on 320 B XLS SET.But i think bass drivers would be better with some other amp than SET.
The problem is that here in Croatia i can not listen to and evaluate a lot of gear.I bought Sinfonia only 3 days after i heard the name "Silverline" for the first time in my life.
And in amps there are many more choices...
So i am learning as much as i can for now.
wireless200
415 posts
 
I would consider Krell. Krell can definitely get a hold of those woofers and control them.
ramy
141 posts
 
I would recommend the Innesound amps,I have the 1KW Innersound monos driving the bass section of the German Physics Loreleys speakers,4 x12in.woofers for each mono amp,the x-over is at 180 Hz,their impedance is 4 ohms,the the amp puts out 2kw at that impedance.These amps are very fast and the resulting sound in my system is excellent.I have had the Bryston's monos they do not even come close .I also had the Acoustic Reality 1001 monos,they were far superior to the Bryston's but no match to the Innersound KW.I believe there is a pair of Innersound 750 monos listed on audiogon.I never imagined how good the bass was on my speakers till I used these amps,outstanding!!
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