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Rega Elex-R with Dali Rubicon 5? Buying a used Yamaha a-s700?

Potatis85

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Apr 29, 2022
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Hello!

I have used my Rega Elex-R with my Dalí Zensor 5 speakers for maybe 8 years now but have just pulled the trigger on a pair of Rubicon 5´s.
They recommend 60-150watt into 4 ohm on the Dalí homepage but the Elex-R has no ratings for 4-ohms at all.


"72 W per channel into 8 Ω, 90 W per channel into 6 Ω"

Will something get overheated? Break? Distortion? (At "normal" listening levels, room is 3x4m in an apartment block)
I have a chance of buying a used Yamaha A-S700 for 2000nok (circa 200usd) and maybe I could sell my Rega Elex-R for around 6-8000nok (6-800usd).
What is the build quality of the Yamaha, is the volume knob metal? Does it feel good?
The Rega is a heavy piece of gear and most of it is metal and is a lot smaller than the Yamaha as well and I already own it so would be the easiest choice. Not sure if the A-S700 will support banana plugs as well (Yamaha homepage says this "Connecting via banana plug (Except for Asia, Korea, U.K. and Europe models)") as this is a Norwegian model.

Thank you!
 
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Potatis85

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... I can safely say that the Rega has no problem in driving these 4ohm speakers and they sound amazing! I have never experienced music this way and compared to my Zensor 5 there is no contest.
 

JktHifi

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... I can safely say that the Rega has no problem in driving these 4ohm speakers and they sound amazing! I have never experienced music this way and compared to my Zensor 5 there is no contest.
Passive speakers is better than active
 

ZolaIII

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Passive speakers is better than active
Funny part is that Dali Zosters (2 and 5) are declared as 4 Ohms but their minimal impedance is 4.8 Ohms and normalised above 5 Ohms while being easy to drive so they won't have any problems with even amplifiers that are not tolerant to lo impedance loads (rated as 6 Ohms min) which most AB class Yamahas are.
Contrary there are speakers that are 8 Ohms rated and deep to 3 Ohms or even under and not so easy to drive (won't name manufacturer).
 
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JktHifi

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Funny part is that Dali Zosters (2 and 5) are declared as 4 Ohms but their minimal impedance is 4.8 Ohms and normalised above 5 Ohms while being easy to drive so they won't have any problems with even amplifiers that are not tolerant to lo impedance loads (rated as 6 dB min) which most AB class Yamahas are.
Contrary there are speakers that are 8 Ohms rated and deep to 3 Ohms or even under and not so easy to drive (won't name manufacturer).
Is it Wharfedale? Or, Kef?
 
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