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Considering upgrade from A&R Cambridge A60 and Rogers Ls3/5a 15ohm to more modern kit - advice please!

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Mikebunting's picture
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Dear all

I have been using my amp and speakers for 20+ years and am considering an update! I was thinking of keeping the Rogers and pairing them with either the Rotel RA-10 or the Rega brio-r. Do you think either of these would be a good match or could I do better for similar money? I would also be grateful for your thoughts on whether more modern speakers would be worth considering - without spending too much money I.e perhaps £300 or so.

Many thanks for your thoughts.

Mike

The_Lhc's picture
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upgrade from A&R Cambridge A60 and Rogers Ls3/5a 15ohm

I'd have thought a modern amp might struggle with a 15Ohm speaker, most modern speakers are only 8Ohms at most, not sure how they'd react to a load like that.

CnoEvil's picture
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RE: upgrade from A&R Cambridge A60 and Rogers Ls3/5a 15ohm

A&R A60 ((I own one)  to Rotel will be a bit of a shock to the system, so make sure you home dem, or at least bring your kit to the dealer to compare.

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nopiano's picture
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RE: LS3/5as etc

Unless you have heard some modestly priced modern speakers you like, Mike, I think you'd be bonkers to ditch your LS3/5as, assuming they are working properly.

No modern amplifier will flinch at 15ohms, and in any case the power handling was always modest, and most newer amps will be 50watts plus, so you'll need to be sensible with the volume control.

I cannot speak specifically for the two amps you list, other than they are well regarded.  Don't just think 'best buy' though, as your speakers deserve special treatment and you might well find a modern sound too bright and even brittle (the A60 was never that sparkling when new, I recall).  Yours is absolutely a case where a no obligation home dem is mandatory.  You could easily spend £1000 on a decent amp for the Rogers speakers.

The nearest of today's spekers would be the KEF LS50, which happens to be an award winner.

 

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AV: Sony Bravia KDL-32EX503 telly, BDP-S370 player with QED HDMI. Currently unused: Denon AVR-1705, DVD-1710, KEF KHT1005.2 

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RE: LS3/5as etc

nopiano wrote:

I cannot speak specifically for the two amps you list, other than they are well regarded.  Don't just think 'best buy' though, as your speakers deserve special treatment and you might well find a modern sound too bright and even brittle (the A60 was never that sparkling when new, I recall).  Yours is absolutely a case where a no obligation home dem is mandatory. 

The A60 is a little pipe and slippers....warm, smooth, unfatiguing, comfortable, musical and inoffensive, but will never set the world alight.

Happy New Year to you NP.

Beer Beer Beer

Cno

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nopiano's picture
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RE: LS3/5as etc

Thanks, Cno, and to you too.  

I'd forgotten you had one, so glad I wasn't rude about it, as I'd not seen your reply when I was writing mine!  Glad that Mike has at least got a similar opinion from two of us about being careful when leaping forward 20+ years.

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Hi-Fi: Krell KAV-300cd, Michell TecnoDec/RB250/Grado Prestige Black1, KAV-300i amp, Transparent balanced interconnects and bi-wire to Sonus faber Concerto grand piano speakers, Nakamichi ZX-7 cassette deck, Logitech Squeezebox Touch, Hitachi FT-5500 and Sony S570ES tuners, BCD Engineering stand, RA Powerlink, Chord powerchord, Grado SR60i cans.

AV: Sony Bravia KDL-32EX503 telly, BDP-S370 player with QED HDMI. Currently unused: Denon AVR-1705, DVD-1710, KEF KHT1005.2 

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RE: LS3/5as etc

nopiano wrote:

Thanks, Cno, and to you too.  

I'd forgotten you had one, so glad I wasn't rude about it, as I'd not seen your reply when I was writing mine!  Glad that Mike has at least got a similar opinion from two of us about being careful when leaping forward 20+ years.

I don't use it any more.....one of my sons has it to play games through!  Shock

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eggontoast's picture
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RE: upgrade from A&R Cambridge A60 and Rogers Ls3/5a 15ohm

The_Lhc wrote:

I'd have thought a modern amp might struggle with a 15Ohm speaker, most modern speakers are only 8Ohms at most, not sure how they'd react to a load like that.

?????????? Why

The_Lhc's picture
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RE: upgrade from A&R Cambridge A60 and Rogers Ls3/5a 15ohm

eggontoast wrote:

The_Lhc wrote:

I'd have thought a modern amp might struggle with a 15Ohm speaker, most modern speakers are only 8Ohms at most, not sure how they'd react to a load like that.

?????????? Why

I dunno, just guessing, as you don't see too many 15Ohm speakers any more, so I presume there's a reason for that...

the record spot's picture
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RE: upgrade from A&R Cambridge A60 and Rogers Ls3/5a 15ohm

The Rogers website lists them at 11 ohms, but can be used with any amp from 25-100 ways.  I'd aim high personally but it's not just about Watts. 

 

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eggontoast's picture
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RE: upgrade from A&R Cambridge A60 and Rogers Ls3/5a 15ohm

The_Lhc wrote:

eggontoast wrote:

The_Lhc wrote:

I'd have thought a modern amp might struggle with a 15Ohm speaker, most modern speakers are only 8Ohms at most, not sure how they'd react to a load like that.

?????????? Why

I dunno, just guessing, as you don't see too many 15Ohm speakers any more, so I presume there's a reason for that...

It doesn't matter really, most amplifiers will be happy with 4 ohms right through to an open circuit. You just have to remember that the wattage figures for most amplifiers is quoted for an 8 ohm load, with 16 ohms you'll get approximately half the watts cos the amp doesn't have the voltage swing for 16 ohm load.

drummerman's picture
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RE: upgrade from A&R Cambridge A60 and Rogers Ls3/5a 15ohm

eggontoast wrote:

The_Lhc wrote:

eggontoast wrote:

The_Lhc wrote:

I'd have thought a modern amp might struggle with a 15Ohm speaker, most modern speakers are only 8Ohms at most, not sure how they'd react to a load like that.

?????????? Why

I dunno, just guessing, as you don't see too many 15Ohm speakers any more, so I presume there's a reason for that...

It doesn't matter really, most amplifiers will be happy with 4 ohms right through to an open circuit. You just have to remember that the wattage figures for most amplifiers is quoted for an 8 ohm load, with 16 ohms you'll get approximately half the watts cos the amp doesn't have the voltage swing for 16 ohm load.

 

I sometimes wish people would make at least the effort to read up and learn a little bit about their hobby. No offense to The LHC, there are many on here.

I have heard 'I dont do technical' a few times, even from folks that regularely 'give advise' here. - I am no qualified electronics expert myself but find that knowing a little about why certain things work the way they do a/ helps giving advise, if needed and b/ can prevent certain costly mistakes.

Its an interesting hobby of ours and it gets more so the more you learn about it.

regards

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Were LS3/5a ever that good? Hifi Choice review

Hi Mike

I don't dislike classic/vintage hifi kit and fully acknowledge that kit of yesteryear can sound just as good or superior to modern kit. However, were the LS3/5a ever that good? I'd be inclined to go see what modern speakers sound like. 

An extract of a review from Hifi Choice from 1986/87:

The LS3/5a has consistently done well in previous live-versus-recorded sessions and fairly well on analogue-programme sources. However, with digital material, problems which were only hinted by analogue material were now clearly apparent, making the design sound more dated. Several areas attracted criticism - the bass lacked extension and sounded 'boomy' in the upper bass register, while the mid had a noticeably 'hard', 'nasal' quality and the treble seemed forward with a grainy, 'zitty' effect at the extreme top end. Some 'tubby', wooden and boxy colorations were also evident, with only moderate rendition of stereo depth.

However, it continued however to provide good voice detail and articulation, with a reasonably accurate tonal balance. Comparison between the Goodmans and Spendor versions showed great similarity while a much older model from Audiomaster (no longer in production) sounded slightly dimmer by comparison, with less mid nasality. However the difference was small by speaker standards

Conclusion

At risk of offending the BBC, we feel that the 3/5A is due for a revision; as a working broadcast tool it no-doubt does its job, but as a piece of value engineering it is beginning to fall behind. Other speakers have shown a progressive reduction in price as well as an improvement in sound quality, but the LS3/5a has steadily increased in price more or less in line with inflation. Nevertheless, on the most recent listening test the LS3/5a scores were sufficient to retain recommendation!'

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AV: Sharp LC-46LE831E, Denon AVR-2310, Sony BDP-S363, SkyHD, Mordaunt Short Genie 5.1, various QED & IXOS interconnects, QED Silver anniversary speaker cable.

Thanks

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Mikebunting's picture
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RE: Were LS3/5a ever that good? Hifi Choice review

Dear all

Thank you so much for all your thoughts and comments - I think the way forward will be to find a good hi if store and take my Rogers speakers with me and try them and some modern speakers with various amps and see how I get on! 

If anyone has any further thoughts I would welcome them.

Best wishes and a happy New Year.

Mike

Joined: 25 Jul 2011
Posts: 1858
RE: upgrade from A&R Cambridge A60 and Rogers Ls3/5a 15ohm

There were two versions of the LS3/5a. The original was 15 ohm, and the later was 11 ohm. They are not that hard to drive.

miggyboys's picture
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RE: Were LS3/5a ever that good? Hifi Choice review

Mike, please post back after your demos your findings in comparing the LS3/5as to modern speakers!

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HiFi: Logitech Squeezebox Touch, Marantz CD6000OSE, Audiolab M-DAC, NAD C350, Denon TU-260L II, Tannoy Revolution R2, Vortexbox, QED & IXOS interconnects, QED Silver anniversary bi-wire speaker cable.

AV: Sharp LC-46LE831E, Denon AVR-2310, Sony BDP-S363, SkyHD, Mordaunt Short Genie 5.1, various QED & IXOS interconnects, QED Silver anniversary speaker cable.

Thanks

Miggyboys