Brendan CDI,82,Scap, ARCs + Mana

naheed...

Brendan

To be fair demo-ing usually costs nothing and you the consumer/customer will be the only one to decide as to whether or not it.s performance justifies the price or value for money.In the grand scheme of things and with my disposable income I don,t think it expensive,if anything its cheap compared to the American lot.Recommend you demo the unit against 250,s rather than 135,s as the 135,s are not stero units like the 250 and 500.

Merry Christmas hooch

"Recommend you demo the unit against 250,s rather than 135,s as the 135,s are not stero units like the 250 and 500."

Hooch,

Kind of a strange comment. Surely the 'ladder' for passive power amps goes 180, 250, 135's, 500. Or do you know something that I don't.

Bob.

As stated the design is two monoblocks which IMHO is a logical way to go in preventing cross talk.
Pardon me but its my understanding that Naim market the 500 as a stereo unit rather than a monoblock such as the 135.I had thought that this was so that a future mono block 500 would be manafactured similar to that of the 250 to the 135 senerio.

I fail to see the relevence of testing a stero power amp against a monoblock.The test was against like amps not whether or not the 135 was better or worse against the 500.Bob you constantly astonish me....wanted an opinion of hutter when it had a wobbly Naim cd player on it?I fail to see the relevence(turned out to be hutter not Naim at fault)

When I demo-ed the 500 have I been short changed because it was against a 250?Should the dealer in order to provide a more realistic demo for me have used 6 *135,s instead of one 250.I bought my own Naim 250,s along but alas was prevented from using them.

For Bob Atherton you forgot to mention the 90 in your list.I,ve had one of these before upgrading to a 250 after just 3 months.Nothing wrong with it what so ever and is a budget model to be considered.

If the 500 is a monoblock and you need six of them to run a set of NBL,s like you do with 135,s then I stand corrected.

Merry Christmas.hooch

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Recommend you demo the unit against 250,s rather than 135,s as the 135,s are not stero units like the 250 and 500

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Hooch, surely you're winding us up ?

Allan

Just got back from a Christmas 'doo' with some mates, so my writing might be a bit shlurred. I'm sorry but I really think you're extracting the urine here, if your 'logic' appeared on the Mana forum I think JW might dismiss you as a troll & send you packing with a flea in your ear.

But as this isn't the Mana forum, I will try & reason. Surely any power amp that ones dems, be it a mono block design or stereo, the price point & position in the hard ware 'hierarchy' is taken into consideration. Hence deming a 500 against a 250 is fine. The 500 will blow away the 250 & I imagine that you might be left wondering
where the middle ground might be.

This would be 135's passive, 250's active & 135's active. Having listened to all of these a greater understanding of the difference between 250 & 500 would I think become clearer.

To run NBL's why would you need multiple 500's when a pair of 135's or a 250 would also run them?

Yes, I did enquire how the CDX sounded on Hutter knowing full well that only 3 of it's feet were making good contact on the Hutter.

You then on the Mana forum scoffed at the perceived imperfections with Hutter, which ended up being a setup issue, not faulty goods. Stating that the 'rubber feet' on the CDX were not making contact.

Bob.

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Recommend you demo the unit against 250,s rather than 135,s as the 135,s are not stero units like the 250 and 500

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and Allans reply:

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Hooch, surely you're winding us up ?

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Probably not. Remember Hooch is a Mana forum regular and, as we all know, over there, there is no difference between a pair of 135s and a 250 as long as the 250 is on Mana ;-)

Andy

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Bit of confusion here.Correct me if I,m wrong but is the 500 a stero power amp or mono block in so far as driving speakers rather than drivers within the speakers.

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As Mark said, it is two monos in one box (i.e. a dual mono amp). Whether you attach the speakers to the same box with the speaker cable is immaterial - it is the internals that matter and the 500 is two monos in a single box (a bit like if Naim put 2x 135s in the same box).

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I had thought that this was so that a future mono block 500 would be manafactured similar to that of the 250 to the 135 senerio.

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Nope, that would be pointless.

The 250 is a stereo power amp where the two channels share the same capacitors/transformers. The 135 route takes one of the 250 channels and puts it in another box and ADDS a power supply. This means with a 250 you get 1x transformer, 1xpair caps, 2xreg boards, 2x amp boards. In a 2x135 system you get 2x transformer, 2xpair caps, 2xreg boards, 2x amp boards.

The 500 already has 2x transformer, 2xpair caps, 2xreg boards, 2x amp boards. Selling the 500 as a mono amp would just mean removing one of the amps from the electronics box and one of the power supplies from the power supply box and putting them in a separate box. You'd still get the same amount of electronics, just in 4 (smaller) boxes rather than the two it currently comes in.

Andy

PS: Hooch, if you've demmed a (set of?) 500(s), did you buy one/them or did Mana manage to wipe out the differences between a 250 and a 500 ?

Did you save £9500 and buy a couple more soundstages instead?

Andy

I've not heard the 500 so I can't comment any more than this, although it certainly *looks* like it must be an amp with authority and clout...

John