Best speakers to go with a turntable


Hi! First of all, excuse my English as I'm from Argentina..

I've just acquired a Bang & Olufsen Beocenter 2000 (http://www.beoworld.org/prod_details.asp?pid=389) which comes with a built in amplifier.

Without having much of an idea about speakers, I was thinking of getting a pair of Klipsch RB-51 (about $500 in my country), but my father assures me that some Technics SB Lx70 (about $260) would be enough..

I'd like to know your opinion about them, or what other option would you choose.

Any suggestion would be helpful.
Thanks
campionas00
Thanks for replying, I forgot to mention it's a 2 x 25 watts RMS stereo amplifier..

My room size is about 4m x 3m, and I mostly listen 70's psychodelic/progressive rock.

Here are the specifications of both speakers: http://www.klipsch.com/na-en/products/rb-51-specifications/
http://www.vintagetechnics.info/loudspeakers.htm
for that amount of wattage, can you find a pair of used JBL's in your country? Like the L-100, L-36, L-50 or similiar? Klipsch should do it also.
with 25 watts per channel, the trick is not to turn it up so loud you are "clipping" the amp all the time and start burning out tweeter or mid drivers..
I assume you like Yes, Pink Floyd, Genesis, etc?
I have a pair of JBL 4312C monitors and they are fantastic with low and high output amps. Their neutral response is excellent for rock.
Your assumption is right Xiekitchen.
I'm afraid i can't find those models you mentioned, just ES series regarding JBL..
I also forgot to mention my budget is $500-$550 top.
You can see what speakers are available in my country here:
http://www.audio-net.com.ar/bafles.html

Someone told me the PSB IMage B25s may also be a good option, what do you guys think?