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Heresy IIIs with Velodyne DD-15. Holy cow!


andyo5

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I recently upgraded my sub from a Velodyne FSR12 to a new DD-15. The DD (digital drive) series is being discounted right now, due to impending release of the DD+ line (which are higher priced, of course).

The DD-15 is a better match for the big living room in our current home. It really compliments the H-IIIs that I bought last year. The system really has "balls" , to use a technical term.

I found that I had to play the H-IIIs at elevated volume to break the woofers in. I got carried away one afternoon while the wife was out shopping, and I put on some live rock albums at elevated volume for a real concert feel. Afterwards, the woofers performed better even at lower levels. I am no longer thinking about Cornwalls , Choruses, or Fortes. The H-IIIs are keepers for sure.

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that's a heck of a sub, bet it does match well with HIII's.

25+ years ago, i added a passive sub to my HII's. I didn't have the amp to handle it at the time so quickly discarded the passive.

No funds at the time for any other option. Bet it does rock!

[Y]

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Heresy lll's with a good sub will give you that Holy Cow feeling for sure.

That's alot of sound for a small speaker, I wonder if they ever played around with a ported heresy. I know they did for PA but was the sound not good enough ported for a normal room ?

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The HIP was louder than a Klipschorn above about 200hz.

Did I mention that it had no bass?

It is possible to port the Heresy with a better woofer.

http://forums.klipsch.com/forums/p/137682/1398802.aspx#1398802

A 2 cu ft 2nd order sealed box with an F3 of 30hz can only be 0.18%
efficient (84.55dB).
A 2 cu ft 4th order vented box with an F3 of
30hz can only be 0.36% efficient (87.56dB).
A 2 cu ft 6th order
vented box with an F3 of 30hz can only be 0.90% efficient (91.54dB).

As
we can see, if you want lower bass you must use a less efficient woofer
and re-balance the crossover network.

A worthwhile change might
be to a 6th order vented woofer.

The Eminence 3012LF would allow
for deeper bass, and handle much more power.

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  • 2 weeks later...
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"I wonder if they ever played around with a ported heresy."

I think they called it the "Forte".

forte's don't have a port either, they have a passive radiator........which is, in a way, halfway between a port and sealed. Cornwall is the only real ported design (not commercial) in the heritage line, there are many ported designs in the RF and other lines.

What I never could understand is a bookshelf speaker ported in the rear ? What were they thinking ?

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Maybe it was the Chorus I that was ported.

The original Chorus was ported.

The Tangent 400 was ported and used the exact same parts as a Heresy II (including the HII crossover). If you find that model of Tangents for cheap, they would be a great purchase.

Bruce

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