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matthewpiano's picture
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RE: KEF LS50 - Which Amp ..?

I think the transparaency is there in the price and the design.  The LS50s are an £800 mini monitor designed to give high resolution performance, whilst the Marantz is a £350 amp designed to do as much as possible - D/A conversion, tone controls, phono input, switching for two pairs of speakers, headphone output etc.  The Marantz is fine within its limits and used with similarly priced speakers but it won't power more difficult speakers as well as something where the investment is either larger OR more focused.

I originally heard Dynaudio DM2/6s a couple of years ago when I had a PM6003.  I didn't like them (or so I thought).  I then heard them again with the Arcam A18 when I had that and again I felt the same.  Soft, slightly diffuse sounding and quite flat tonally.  Something made me try them again when I got the Exposure and the difference is quite startling and taught me an important lesson. The Exposure is not a terrifyingly expensive amp but it is much simpler in design than the Marantz or Arcam and the investment has been focused on the elements that really matter.  All the extra features have been stripped out but the highest quality components required to amplify the signal and control the speakers have been specified (within what is possible at the price).  The 1010 makes the Dyns sing at a wide range of volumes (including, at this very moment, very low levels).  They sound open but have good weight to the sound and voices and instrumental timbres have a tangibility I've been yearning for.  I love listening to my music now and it is all through a loudspeaker design I twice rejected, a rejection I now understand was down to the inadequacy of the amplification.

Rega RP3/Elys 2 - Graham Slee Gram Amp 1 - Rega Apollo R - Exposure 1010 amp - Dynaudio DM2/6 - Chord Co. Chameleon VEE3/Rumour 2 - Musical Fidelity V90-HPA - Sennheiser HD595

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RE: KEF LS50 - Which Amp ..?

Pjotter wrote:

Why doesn't the speaker manufacturer help us out? In this case answering the question: What would be the minimum requirements/specs of an amp in order to enjoy your investment in the LS50's to a reasonable/minimal level. I dropped the question at KEF whether my PM6005 amp is suitable to drive the LS50, fair question I reckon, no answer though. Why isn't there more TRANSPARENCY in this world where an amp without a speaker or a speaker without an amp couldn't exist?

On the face of it, this may seem an easy thing to do.....but unfortunately, the printed specs of an amp often don't tell the whole story.

 

"We should no more let numbers define audio quality than we should let chemical analysis be the arbiter of fine wines."  Nelson Pass

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RE: KEF LS50 - Which Amp ..?

Bagged myself an MFM6500i .... I'll write up my thoughts once I've had a chance to see what it can do ... I will say though, its massive and very heavy ... I need a new equipment rack. First thoughts ... Allot smoother than my Roksan which I prefer ....

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RE: KEF LS50 - Which Amp ..?

Kubs wrote:
Bagged myself an MFM6500i .... I'll write up my thoughts once I've had a chance to see what it can do ... I will say though, its massive and very heavy ... I need a new equipment rack. First thoughts ... Allot smoother than my Roksan which I prefer ....

At least now, nobody can tell you that the amp doesn't have enough power :twisted: .......it should be an amazing combination.  :rockout:

"We should no more let numbers define audio quality than we should let chemical analysis be the arbiter of fine wines."  Nelson Pass

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RE: KEF LS50 - Which Amp ..?

Really excited to play some music tonight .... Haven't had that feeling for a while ....

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RE: KEF LS50 - Which Amp ..?

Kubs wrote:

Really excited to play some music tonight .... Haven't had that feeling for a while ....

 

nothing quite like that feeling!! 

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RE: KEF LS50 - Which Amp ..?

Hi Womaz .... Which hi fi rack do you house your MF M6 in?

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RE: KEF LS50 - Which Amp ..?

My guess is that the new Benchmark amp could be a very good match.

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RE: KEF LS50 - Which Amp ..?

Kubs wrote:
Bagged myself an MFM6500i .... I'll write up my thoughts once I've had a chance to see what it can do ... I will say though, its massive and very heavy ... I need a new equipment rack. First thoughts ... Allot smoother than my Roksan which I prefer ....

how are you finding the m6500i / ls50 combo ? any futher updates ?

thanks in advance

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RE: KEF LS50 - Which Amp ..?

I've been meaning to provide an update on my experiences with the MF M6500i ... just haven't had the time. I'll start with the following and hopefully provide some more detail later:

Music playback is more engaging and I find myself getting lost in the track I am listening to ...this is so cliche but I can hear notes / beats I've never heard before. The best way to describe the sound created by the amp (and supporting components) is that the instruments have move space around them .... and as a result the room feels bigger.

Piano playback is amazing ... it actually sounds like there is a piano in my front room ... you can feel/hear the vibrating cord each time is it struck ....

It's still breaking in and I will report further at a later date.

PS - the KEFs have really opened up.

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RE: KEF LS50 - Which Amp ..?

Kubs wrote:
I've been meaning to provide an update on my experiences with the MF M6500i ... just haven't had the time. I'll start with the following and hopefully provide some more detail later: Music playback is more engaging and I find myself getting lost in the track I am listening to ...this is so cliche but I can hear notes / beats I've never heard before. The best way to describe the sound created by the amp (and supporting components) is that the instruments have move space around them .... and as a result the room feels bigger. Piano playback is amazing ... it actually sounds like there is a piano in my front room ... you can feel/hear the vibrating cord each time is it struck .... It's still breaking in and I will report further at a later date. PS - the KEFs have really opened up.

thanks for the update.

what stands have you got the kefs on ? heavy metal or lighter wooden stands ?

are your speakers "flat" on the stands ? or have you used rubber, blutach, or a hard cone between stand and speaker ?

and dare i ask what speaker cable you are using ?

thanks for any futher updates !

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RE: KEF LS50 - Which Amp ..?

Stands:
http://www.whathifi.com/review/atacama-aurora-6

Filled with glass pebbles / on spikes / the spikes are on Atacama feet.

The speakers are sitting on rubber pads that came with the speaker stands.

Speaker cable is:
http://www.whathifi.com/Review/QED-Silver-Anniversary-XT-Biwire/

mikefarrow are you planning on getting a pair of KEF LS50s?

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RE: KEF LS50 - Which Amp ..?

Kubs wrote:
Stands: http://www.whathifi.com/review/atacama-aurora-6 Filled with glass pebbles / on spikes / the spikes are on Atacama feet. The speakers are sitting on rubber pads that came with the speaker stands. Speaker cable is: http://www.whathifi.com/Review/QED-Silver-Anniversary-XT-Biwire/ mikefarrow are you planning on getting a pair of KEF LS50s?

You might like to try Telurium Q Black / Green. See if you can borrow some to try in your system.

I would also try a Power cord on the amp from Clearer Audio (possibly Copper-Line), which you can have on a 60 day trial period.

These things can be tried and sent back if no improvement is heard.

"We should no more let numbers define audio quality than we should let chemical analysis be the arbiter of fine wines."  Nelson Pass

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RE: KEF LS50 - Which Amp ..?

Kubs wrote:
Stands: http://www.whathifi.com/review/atacama-aurora-6 Filled with glass pebbles / on spikes / the spikes are on Atacama feet. The speakers are sitting on rubber pads that came with the speaker stands. Speaker cable is: http://www.whathifi.com/Review/QED-Silver-Anniversary-XT-Biwire/ mikefarrow are you planning on getting a pair of KEF LS50s?

thanks for detailed reply !

i'm looking into a speaker upgrade and a budget of £800 has been suggested for an upgrade to my current old b&w 601 s2 speakers.

(no funds gathered as of yet however........)

therefore the kef ls50 plus the b&w cm5 have been suggested. not sure my 75watt musical fidelity xa2 is good enough for the kefs !

(your amp is a bit more powerful !)

did ask kef what stands they use as a reference when testing the ls50 - no reply !

i suppose i would have to experiment but it seems these speakers require a heavy mass loaded stand. current speakers sound best on 

lighter stands (?). thanks again for reply.

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RE: KEF LS50 - Which Amp ..?

I think you should try new speakers with your existing kit and see where it gets you. As I remember XA2 it's not bad at all and if kefs work much better with it, great. And I think they might, B&W 600 series was not the most lively out there. You can expeeriment with different stands and amps latter. If you feel you need to.

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