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Will New Advent Loudspeaker work with original Advent


draftingmonkey

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Just picked up a pair of New Advent Louspeakers with the metal frame today for $40. As usual will need refoaming. My question is that I hear about how stacked Advents are supposed to sound great. Will my new metal framed Advent sound just fine with my masonite framed Advent or is there a difference in the outputs?

I figure I couldn't beat the price so what the heck.

And for fun I will compare them with a set of stacked KLH 23's. What the heck since I have 2 pairs of each it may be fun.

So it will be fun here next week when my new surrounds are installed.

James

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Guest daveshel

>Just picked up a pair of New Advent Louspeakers with the

>metal frame today for $40. As usual will need refoaming. My

>question is that I hear about how stacked Advents are supposed

>to sound great. Will my new metal framed Advent sound just

>fine with my masonite framed Advent or is there a difference

>in the outputs?

>

>I figure I couldn't beat the price so what the heck.

>

>And for fun I will compare them with a set of stacked KLH

>23's. What the heck since I have 2 pairs of each it may be

>fun.

>

>So it will be fun here next week when my new surrounds are

>installed.

>

>James

Yes. My first stack was using a masonite ring pair along with a "New" pair, and they were a better match than stacking the "New" with a later original (no ring but not a "New"). Which I could not explain since the "New" had a different crossover than the originals (I think).

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Hi James,

I would think that the combination should be OK although the woofer cone in the all metal models is set back farther from the front of the frame than the masonite models. I found this out because the last pair of Walnut originals I bought had had the woofers replaced with the newer ones. I would expect some phase disruption empirically but in real life it doesn't seem to do too much.

The New Advent tweeters are, of course, farther back too (flush with the baffle) but, in your case, you could just move the New Advents forward a little so the drivers are all in about the same vertical plane. I can't do this and have everything hunky-dory because mine all have the original design tweeters and the one pair would end up forward of the other two if I tried to match up the woofers. That's why I'm on the lookout for a pair of masonite woofers for my third pair (yes, I have a triple Advent set-up :^)

For the money, I don't think you can go wrong. To me, even though one pair of Advents sound good, stacked Advents are amazing! They really seem to disappear with clear, effortless sound.

Doug

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Guest Dino1956

Just wondering when you guys stack these Advents , how you wire them ? Are one pair in the A Speaker Channel & the other Pair in B on the reciever or amp ? Thanks.

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I believe that they should always be connected in parallel. While it is possible to connect one set of wires to the amp output and then jump from one pair of speakers to the other (+ to + and - to -), I have mine connected to the separate outputs (speakers 1 and 2) so I can quickly turn different pairs on or off for comparison.

Some amps are made so that when you have two pairs connected and selected, they are actually in series. This can be tested by connecting one pair and then selecting that pair only. The speakers should work. If you then select the 2nd pair (without any speakers connected to that output) and the one pair goes silent, the amp connects them in series. if the one pair remains working, the amp connects them in parallel.

With my triples, I have the top two pairs connected to 1 and 2 of one amp and the bottom pair connected to 1 of another, identical amp. This way, I can select one, two, or all three pairs.

Doug

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Guest daveshel

>Just wondering when you guys stack these Advents , how you

>wire them ? Are one pair in the A Speaker Channel & the

>other Pair in B on the reciever or amp ? Thanks.

They must be wired in parallel: two lefts on the left and two rights on the right. If they are wired in series they would not be in phase. But since they are 8 ohm speakers this is not a problem, as most amps are fine with a 4 ohm load.

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  • 10 months later...
Guest sbalfour

>>Just wondering when you guys stack these Advents , how you

>>wire them ? Are one pair in the A Speaker Channel & the

>>other Pair in B on the reciever or amp ? Thanks.

>They must be wired in parallel: two lefts on the left and two

>rights on the right. If they are wired in series they would

>not be in phase. But since they are 8 ohm speakers this is not

>a problem, as most amps are fine with a 4 ohm load.

I'm dredging up something here, but it caught my eye because I own

triple Advents, and am driving them with a tube amp, so I've got

a lot bigger problem.

First, the Advent Large is not really 8-ohm, it's about 6.5, so your

amp better be comfortable with 3.25 ohm loads if stacking them in

parallel. Solid state amps, no problem, but tube amps must drive

them from 4-ohm outputs if it has them. Even if it does, you're

better off stacking them in series for tube amps (i.e. yielding a

load of 13ohms minimum), because 3.25 ohms is just worrisome low -

tube amps usually have a few tenths of an ohm output impedance, so

your 4-ohm damping factor could be as low as 8.

Second, series connection does not mean "out of phase". It is possible

to connect speaker pairs in series in-phase or out-of-phase, just

as it is possible to connect them in parallel in-phase or out-of-

phase. There are 4 distinct wiring schemes. See my rather crudely

drawn wiring diagram (attached). You can verify the phasing diagrams

with a signal generator and oscope.

http://www.classicspeakerpages.net/dc/user_files/1973.jpg

Then, if you are not careful with the speaker cables, you can also

have the left pair of speakers out-of-phase with the right pair,

or left and right swapped (so that the right channel plays out

of the left-hand speakers and the left channel plays out of the

right-hand speakers), or both pairs reversed polarity (wired "+"

from amp to "-" on speaker, and "-" from amp to "+" on speaker).

Stuart Balfour

1971.txt

post-102282-1171239373.jpg

post-5-1171239373.jpg

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