will these speakers work with this stereo tube amp? - AVS Forum | Home Theater Discussions And Reviews
Baselworld is only a few weeks away. Getting the latest news is easy, Click Here for info on how to join the Watchuseek.com newsletter list. Follow our team for updates featuring event coverage, new product unveilings, watch industry news & more!

Forum Jump: 
Thread Tools
post #1 of 4 Old 04-11-2010, 07:50 PM - Thread Starter
xsk3l3t0rx's Avatar
Join Date: Apr 2009
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
ok, so i'm an electromechanical technology major, but when it comes to spending lots of money on gear, i dont trust my own intuition.... so here's the lowdown. i am hoping to pick up a tube stereo amp very soon, and newegg's got some polk bookshelf speakers that would look really nice on my desk. i just want to know if these speakers will work properly with this amp. the output impedance on the amp is 4Ω-8Ω, as is the impedance of the speakers, so i believe that is ok, however the amp only puts out 5W for each of the two channels, but the power rating of the speakers is between 20-150W per channel. will the amp be able to drive these speakers enough to sound good? i want quality audio (i use apple lossless for my audio files, and i have some nice sennheiser hd280s), but i'm sorta on a budget hence why i'm interested in these two components. let me know what you guys think, and if u don't think these speakers are compatible, can you explain why and possibly recommend me a pair of polk bookshelf speakers from newegg that WILL match? links are provided below... thank you to whoever helps!


xsk3l3t0rx is offline  
Sponsored Links
post #2 of 4 Old 04-11-2010, 10:22 PM
AVS Special Member
DonH50's Avatar
Join Date: Feb 2010
Location: Monument CO
Posts: 8,797
Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
Quoted: 1427 Post(s)
Liked: 935
I personally misdoubt you'll be able to drive any reasonable speaker to reasonable loudness with only 5 W (Paul Klipsch's famous quote aside). However, it may sound loud enough, especially since the single-ended tube amps distortion will likely be dominated by the bit smoother-sounding second harmonic distortion rather than the more typical (and worse-sounding) third... In fact, 1 W may be enough average power, but the ratio of peak to average in music is about 17 dB, a factor of 50 in power.

My concern over time is that clipping generates higher-frequency content that can damage your tweeters.

All that said, I love the sound of a good tube amp... - Don

"After silence, that which best expresses the inexpressible, is music" - Aldous Huxley
DonH50 is offline  
post #3 of 4 Old 04-12-2010, 08:53 AM
AVS Addicted Member
Selden Ball's Avatar
Join Date: Jan 2001
Location: upstate NY
Posts: 10,283
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 2204 Post(s)
Liked: 1057
When using a low power amp one must use high sensitivity speakers. I suspect you'd need speakers with sensitivity greater than 100db. The Polks you mention are claimed to be 89db.


Marantz SR7009 avr + MM9000 amp --> Atmos 7.1.4
Fronts=NHT 2.9+AC2, FH+TM=DefTech PM1000, LCR+TM amped
Selden Ball is offline  
post #4 of 4 Old 04-12-2010, 09:03 AM
Senior Member
jettore's Avatar
Join Date: Nov 2008
Location: Philadelphia
Posts: 499
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Looks like your spending too much on amplifier and not enough on the speakers. You've got it backwards. Spend your budget on a nice set of high sensitivity speakers and $50 for this.
jettore is offline  
Sponsored Links
Reply Audio Theory, Setup, and Chat

taboola here
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off