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what amplification with 70s speakers?

 
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roberte
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Joined: 20 Sep 2006
Posts: 51

PostPosted: Fri Oct 06, 2006 1:08 pm    Post subject: what amplification with 70s speakers? Reply with quote

Is there any concensus as to what to use?

Two broad options I guess:

something more or less contemporary with the age of the speaker for authenticity

or

amplfiers have come on a bit, use something modern - in which case are there certain brands that sit particularly well with older speakers?
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ColinR
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Joined: 31 Jul 2004
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Location: Staffordshire

PostPosted: Fri Oct 06, 2006 1:34 pm    Post subject: Reply with quote

Start here

http://www.hifiloudspeakers.info/speakertalk/viewtopic.php?t=372

pay particular attention to the "professional" varients.

If you are into light bulbs, the one's with more bigger bulbs work better as KEF bass sections benefit from high damping factor designs.

The JVC 100 Watt rms 8 Ohm transformer coupled power amplifier design (like a Quad 50E on steroids), sounds good too.

Bridged designs like Quad 405-2 and Amcron DC 300A mkII work well, although bridged Harmon Kardon (>400 W rms 8 Ohm) power amplifiers sound like pooh, so tread carefully with AV amplifiers and their method of bridging.

Regarding new stuff, it should have some of the characteristics of older gear, either lifting it will make your eyes water or contact with the power supply will prove fatal.
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roberte
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PostPosted: Mon Oct 09, 2006 11:15 am    Post subject: basic question if I may... Reply with quote

are 'current dumping' and 'class A' two ways of saying much the same thing?
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ColinR
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PostPosted: Mon Oct 09, 2006 8:14 pm    Post subject: Reply with quote

Quote:
are 'current dumping' and 'class A' two ways of saying much the same thing


No, a Quad 240/306//405/520/606/707/909 use both a low powered class A and high powered class AB amplifier in a specific combination, a type of "class G" I believe.

Class A amplifiers drive their output stages 100% of the time - hence the heat.
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proffski
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Joined: 22 Aug 2003
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Location: Tewkesbury UK

PostPosted: Tue Oct 10, 2006 7:13 pm    Post subject: NAIM Dropping... Reply with quote

In the past I found that my NAIM stuff went quite well with KEF loudspeakers.
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