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Guest gkentsmith

All Advent questions answered

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Q. re 'Stacked Advents' and new AV receiver...

I haven't yet set up this system, but here's the equipment:

4 Large Advents (walnut, c.1973) stacked, as fronts

1 Advent 5002 - center

2 Smaller Advents - rear surround

Powered 12" sub

Onkyo TX-NR809 7.2 receiver (but used as 5.1)

Just wondering if I need to manually wire the fronts in parallel to get the stacked effect, or if the Onkyo can do that for me if I just plug them all in... and can the bi-amp feature offered bt the 809 receiver help? I suppose this may be more a question about the receiver than the speakers. The receiver IS rated for 4, 6 or 8 ohm speakers.

Many thanks for any expertise you can offer!

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I just scored a pair of Advent Heritage speakers. I hooked them to a Sony STR-AV1070. I am amazed at the sound. They didn't sound as good when I hooked them to my Pioneer VSX-D850S. I am very excited about this score. Paid $50 for the speakers and $50 for the receiver.

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Q. re 'Stacked Advents' and new AV receiver...

Just wondering if I need to manually wire the fronts in parallel to get the stacked effect, or if the Onkyo can do that for me if I just plug them all in... and can the bi-amp feature offered bt the 809 receiver help? I suppose this may be more a question about the receiver than the speakers. The receiver IS rated for 4, 6 or 8 ohm speakers.

Many thanks for any expertise you can offer!

Hi there

To create the Double Advent system you place the cabinets vertically, raised above the floor about 12" or more.

The cabinets are stacked one above the other with the tweeters close together.

You may wish to use double sided tape or equal in between them so they do not slide off.

You will also need to wire them in parallel.

Be certain of the wire phasing.

Fusing is also a good idea.

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What does wiring two sets of speakers in parallel mean?

Also, another poster asked a question that I did not see answered. Maybe I missed it, but I'm interested in the answer myself so I'll repost the question:

"Hello and thank you for reading. I have a pair of large advents, I believe they are from around 1975 - 1977 the tweeter is orange with a mesh grill and a square metal mounting plate, the woofer is mounted near center of the encloser, surrounds look good no holes or tears, i noticed if i wire them with the positive on the 0 connector and the negative on the 8 ohm connector they seem warmer and a little more bass, but the highs roll off a little too soon, but if i wire them the other way they seem a bit harsh and lose quite a bit of the warmth and bass. can you tell me which is the proper way to wire them?? when flipping the switch on back, out of the normal position i seem to lose a lot of the tweeter like its almost completely off and then switching to extended makes it even harsher. also there is a fuse mounted on the outside of the back of the speaker, but i havent seen that on other advent pics that i have looked at online. any advice on making them sound better? they dont crackle or buzz or anything and they can go pretty loud. thank you in advance."

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Parallel means that wiring positive to positive to positive, and negative to negative to negative. Keep the similar connectors together. Check the two diagrams on this site, it shows very easily understood diagrams. The top one is series and the bottom one is in parallel.

http://www.termpro.com/asp/pubs.asp?ID=124

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That's interesting. As I stated in the original post, I am no audiophile.

I have often used four speakers, sometimes with a set in surround sound/live mode; sometimes just four speakers putting out the same music.

I always just connected the receiver's right channel A speaker output positive to positive (or 8) on the right A speaker, and the receiver's right negative A to the speaker's negative on the right A speaker. Then I did the same with the left A speaker.

I did the same thing with the second, B set of speakers.

It seemed to work? Sometimes I listened only to the A set, sometimes only B, sometimes all four.

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Mick,

Your method is fine. If your amp is designed to drive 2 pair of speakers you've connected them the right way: Output A to speakers A and output B to speakers B. The deal with wiring stacked Advents in parallel has benefits and risks. If your amp only has one pair of outputs you have to connect both pair of speakers or buy an external speaker selector box. If 2 pair of Advents are connected in parallel it drop what the amp "sees" from 8 ohms to 4 ohms. This means more power is available, the speakers will be a bit louder and less likely to clip. For example, my MAC4100 is rated 75wpc into 8 ohms but 100wpc into 4 ohms. BUT not all amps, especially not cheap amps, can handle 4 ohms. If your amp is not rated for 4 ohm loads do NOT connect the Advents in parallel.

Denovo: Onkyos are pretty robust. I've had 2 and both were rated for 4 ohms.

Similarly, you should never connect two 4 ohm speakers in parallel. Very very few amps are capable of handling 2 ohm loads. And the impedance varies. A 4 ohm speaker's impedance is not a constant 4 ohms. A 2 ohm load is dangerous. Zero ohm = short circuit.

Kent

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Hi there

To create the Double Advent system you place the cabinets vertically, raised above the floor about 12" or more.

The cabinets are stacked one above the other with the tweeters close together.

You may wish to use double sided tape or equal in between them so they do not slide off.

You will also need to wire them in parallel.

Be certain of the wire phasing.

Fusing is also a good idea.

This has been working well for the past year; Just wanted to thank you for pointing me in the right direction! I confess, mine are stacked vertically as recommended, but not raised a foot off the ground... maybe someday I'll find a reasonable way to do that. What will it accomplish?

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Hi.  I purchased a pair of large Advents from my nephew.  They needed refoaming , so I did that.  They sound awesome on my Sansui G3000.  The question I have is this.  Do I need to clean the rear speaker wire contacts with anything?  Also, the board the speaker connectors are connected to is loose on one of the speakers.  How do I reattach?  The third question is, how do you recommend cleaning the yellowing on the original grill covers?

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23 hours ago, Dcfitz1962 said:

Hi.  I purchased a pair of large Advents from my nephew.  They needed refoaming , so I did that.  They sound awesome on my Sansui G3000.  The question I have is this.  Do I need to clean the rear speaker wire contacts with anything?  Also, the board the speaker connectors are connected to is loose on one of the speakers.  How do I reattach?  The third question is, how do you recommend cleaning the yellowing on the original grill covers?

In order:  Need to clean? No, not strictly, but it doesn't hurt to hit them with Deoxit. 

If you mean where the wires from your Sansui are attached; masonite originals were hot glued on so you can re-glue them.  Metal originals were held by staples and glue, re-glueing should suffice but you do want a tight seal.

The grill covers may have been yellowish to begin with.  They seem to be some type of burlap and the shade did vary over the years.  Search the forums and you'll find discussions on replacing the material, I've yet to see anything about cleaning it.  Lots of threads on Advents more current than this one. Try http://www.classicspeakerpages.net/IP.Board/index.php?/profile/180451-rickb/

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I have a question for Kent (Guest gkentsmith), Where did you obtain all this advent knowledge?

Look at my username, what year did the new vision series go on the market?

You are not the only one that has multiple advent speakers. 

Let's measure up....

From A Real International Jensen Employee... 

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Welcome NewVision250

I suspect that Guest gkentsmith is no longer on CSP. His last post was 13 years ago and he was signed in as a guest, not a member. I don't think we even have "guests" any more, to prevent spam.

So unless challenged, I'm going to assert that I'm the only Kent here. And I know next to nothing about Advent speakers (had some OLAs for a while but was not impressed).

-Kent (the one and only?)

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