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HDT MK I - alternate tuning (Read 12581 times)
brad
Ex Member



HDT MK I - alternate tuning
08/09/05 at 16:16:13
 
I can't speak definitively about other amplifiers, but I'm assuming results will be the same or similar with other (good) amplifiers as with my TABOO.  If so, run... don't walk to your keyboard and place an order for the HDT upgrade kit. Yes, it's that good, and it makes an overall improvement to the sound of the HDT's that is far and away beyond the meager price of the kit, or the 2 hour installation time.

If you also own a TABOO, you're gonna laugh yourself silly when you hear the modded HDT's in TABOO "Lucid mode".

In either mode...

1) expanded sound stage, speakers dissappear more if not completely

2) better detail/microdynamics - I know it's a cliche, but the saying of hearing things in recordings never heard before... it applies in spades here.

:D Cheesy Cheesy Cheesy Cheesy

P.S. Don't forget to felt the phase-plug as detailed in the HDT tweaks thread.

-Brad-
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« Last Edit: 08/09/05 at 16:23:09 by Brad »  
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Falconer
Ex Member



Re: HDT MK I - alternate tuning
Reply #1 - 08/09/05 at 17:07:41
 
Hey Brad,
Did you get the drivers gel coated?
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zinker
Ex Member



Re: HDT MK I - alternate tuning
Reply #2 - 08/09/05 at 17:57:26
 
Brad,
What does this new tuning do for bass extention and evening of the upper end shout, if any?
John
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Corey
Ex Member



Re: HDT MK I - alternate tuning
Reply #3 - 08/09/05 at 21:12:59
 
Now Brad you need to get a ZBox and you will be done.

Corey
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brad
Ex Member



Re: HDT MK I - alternate tuning
Reply #4 - 08/10/05 at 06:26:35
 
I have not had the drivers gel waxed yet and am not sure I will. I'm very happy with the way they sound.  Steve says the gel wax is supposed to smooth out the "shout" but I don't really hear a "shout" with my room/setup. We'll see after many more hours and days of happy listening Smiley

Corey, why do you keep talking about a zbox. I don't see why I would need a zbox.  I don't think it would add much to my source and preamp combo.
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« Last Edit: 08/10/05 at 06:28:24 by Brad »  
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brad
Ex Member



Re: HDT MK I - alternate tuning
Reply #5 - 08/11/05 at 00:32:18
 
Alternately for those DIY'ers with a Zen CS as apposed to a TABOO, its likely better for you to build or mod your HDT in the MK-II format instead of the MK-I alternate tuning.  The MK-II is 4 ohms which the CS likes. The TABOO likes 6-8 ohms better which the MK-I is.

MK II drivers are rumored to be the following. As for tweeter placement, you'll have to wait until the DecFest and/or release of the MK-II.  Unless of course Steve decides to publish that info.  The tweeter is fairly well known having been used in the Decware radials.  I know the make but not the exact model of the the midbass driver, though it's a fairly easy guess.  However, I don't know if it's appropriate at this time to divulge. You'll have to wait for Steve to say or give the OK.

Keep an eye on listeners' comments after the DecFest, or better yet. Go! Smiley




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« Last Edit: 08/11/05 at 00:48:26 by Brad »  
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Jason_S
Ex Member



Re: HDT MK I - alternate tuning
Reply #6 - 08/23/05 at 00:50:16
 
I'm leaning toward building my HDT's in the MK II version as I've always been partial to ribbon tweeters, as well I have a CS to mate them to.
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brad
Ex Member



Re: HDT MK I - alternate tuning
Reply #7 - 08/23/05 at 01:38:29
 
I see you you have the Zen CSEX. This amp was optimized for speakers with around 8ohm or higher impedance. This amp is a better match for the HDT MK-I with alternate tuning.  The MK-II is a 4ohm speaker designed specifically for use with the original Zen CS (non EX) version.  That's not to say that you would not like the MK-II, but I just wanted to point out that you may have less than ideal results. Depending upon your listening habbits you might have clipping, or other problems. You might want to talk to Steve first to confirm.

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« Last Edit: 08/23/05 at 01:46:12 by Brad »  
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Jason_S
Ex Member



Re: HDT MK I - alternate tuning
Reply #8 - 08/23/05 at 02:21:00
 
Actually, I have both sets of OPT's.
The original (non EX) set are in it right now.  It leaves all my options open but definately gives me too many choices.  :)

Jason
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Corey
Ex Member



Re: HDT MK I - alternate tuning
Reply #9 - 08/24/05 at 20:21:37
 
Brad,

I typed in wool cone speaker and came up with the same drivers you posted.

First off, those drivers are extremely cheap at $26 a piece.

Also, the speaker can also be ordered in 8 ohm which might match our amps better. Are you thinking of trying the 2 way version or are you happy with the Alt tuning?

Take care,

Corey
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brad
Ex Member



Re: HDT MK I - alternate tuning
Reply #10 - 08/25/05 at 20:35:42
 
I'm happy with the alt tuning, but then I also get the tweak bug and I have the sickness of never being completely satified - ie, always looking for ways to get better sound.

Yes, I've thought about trying this combo out, but the 8ohm version of this driver is not very efficient.  If I make changes it would be either to stay at my current efficiency range 95-96db or to go higher.

Call me crazy, but one option I'm thinking of trying is using a FE208E sigma and an Aurum Cantus G2si ribbon tweeter.
The T/S params on the 208E is similar to the 206E so it should work OK in the HDT cabinet.

This particular combo of drivers is used in Dick Olsher's BassZilla Platinum kit to (reportedly) good effect.  I'm thinking the HDT cabinet will do a better job than an open baffle.  I bought the kit plans ($23) just to get the crossover design Dick used.  I figure it would be a good place to start.
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brad
Ex Member



Re: HDT MK I - alternate tuning
Reply #11 - 09/07/05 at 07:37:45
 
MK-I Alternate Tuning passive radiator...

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brad
Ex Member



Re: HDT MK I - alternate tuning
Reply #12 - 09/07/05 at 07:39:12
 
Pic of phase plug felting

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Young_SC
Ex Member



Re: HDT MK I - alternate tuning
Reply #13 - 09/26/05 at 11:41:21
 
I'd be curious for feedback on what the HDT MkII's sound like with the Zen CEX from those heading to the DecFest, even with a 4 ohm load.

Simon
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Corey
Ex Member



Re: HDT MK I - alternate tuning
Reply #14 - 10/22/05 at 02:18:06
 
I found some Weldbond glue yesterday and installed the Alternate kit on one HDT.

After evaluation between the regular tuning and alternate tuning it took me about half a song to cut the passives out on the regular tuned slut and install the new passives on that one as well.

This is a fantastic tweak and IMO deserves production status. There is just too much chaos inside the chambers without this foam in there. The sound reflecting back into the rear cone of the FE206-M really messes up the mids and highs.

Corey
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« Last Edit: 10/22/05 at 03:42:59 by lynch »  
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