Pondoro
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Posts posted by Pondoro
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You need non magnetic screw drivers. I don’t think it would be hard to do yourself. I’ll bet YouTube has lessons. If you take a good picture of the before positions you could always go back.
edit: I was mistaken, all the instructions require a lot of equipment. I did AM radios by ear but apparently FM is trickier.
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3 hours ago, Fast996 said:
Hi ,
Here is the list of changed parts,all of the capacitors,all the electrolytics,including the power supply which was upgraded to about double the uf. All original spec'd low noise resistors and others upgraded to 1 pct 1 watt and all caps were 1 pct also. Some in spec carbon resistors were left in place.
The best published specs after a recap I could find on the web was a unit done by Terry Dewick a master McIntosh tech. The unit Terry recapped which he called "virgin" was 0.02 THD
Am I happy with .05/.06 absolutely because mine was electronically far from virgin. Also the new caps should have a very positive effect on the sound...though still having the "Mac" signature. I'm glad I had it done. It will last me the rest of my lifetime.
So this is very interesting. Lots of people say, “replace the capacitors” but here is actual before and after test results. Thanks!
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18 hours ago, Fast996 said:
Restoration
So it isn’t clear from the page you posted. Did they replace all the caps? The page just talks about cleaning and retensioning the tube sockets. The performance clearly improved, I can’t tell if the caps were changed.
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I read the before and after specs, what happened in between?
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I've still got my analog NAD Tuner, bought in 1980. Analog dial, analog tuning. Unfortunately the signal strength meter is LED, not analog. But it is pre-auto tune, you can drift off the channel (happens very rarely). It will be part of my system until no FM or AM broadcasts are decipherable by it's old school circuits. But I rarely listen to it.
My biggest mistake was letting my AM tube radio go in 2006. I grew up listening to baseball on an old crackling tube radio. It doesn't sound right any other way.
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14 minutes ago, Peter P. said:
Idea #2: You can still stick Heresy's on the ends in their normal orientation, with the grills removed. You will create your own grills that will be part of the furniture. The Heresy's will slide in from the rear.
Construct the cabinet so the Heresy's are as low to the ground as possible. The center section that houses all the equipment-that will be slightly higher from the ground to accommodate the casters, but the top of the cabinet will be totally flush unlike the red/white thing in the photo, and you'll mount the casters as widely spaced in that center section as possible. Hide the casters with a skirt.
I love all of this except don't hide the casters. Display them proudly. (Vintage-looking ones)
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I think laminating large panels is usually done with contact cement rather than PVA, others will probably chime in. Weighting a large panel and keeping it bubble free is difficult, contact cement is easier in that regard.
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That Heritage Theater Bar looks amazing. But when I saw the price I thought, “Better to cannibalize a set of Heresy speakers!” If this is his only sound system I would run separate speakers and use the console for storage. If he has a prime system and this is a second system in a different room then I’d try to reuse some Heresy speaker internals. That theater bar seems too expensive when compared to a “real” Heritage two channel system.
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I made new grill boards for two old Heresy speakers. They mounted with Velcro, I modified them to magnet mount. It was not hard. The KP-250 grill cover mounts with screws, not sure about the 201, but I'll bet you could figure out a way to make a "pretty" replacement.
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Many consoles of that era fired the woofers out the ends. Perhaps you could put a set of Heresy horns in front and fire the woofers out the ends. I'd still draw it ten times trying to get an entire unmodified Heresy in. I truly love that design but dropping a Heresy pair in is the best way to not mess up the sound.
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Peter P has some radical but interesting ideas. Do you have larger Heritage speakers in a different room anyway? You are going down a road to some type of compromise - these are worth considering.
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I love the look of that, I am a Mid Century Modern nut. Is there no way to scale it up to fit the Heresy's?
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I bought a sweet Magnavox console, but not for the sound, I want to put modern stuff in it for my Mid Century Modern man cave. I found out that the amp is actually prized by rebuilders. I have messed with electronics in my day, actually building two low powered tube guitar amps. So I am considering that. I'd probably rather pay a pro to do it if the price was not crazy.
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My Heresy's benefited from a 10" 50 watt sub. I don't play a extreme levels though and I don't play electronic music. Old rock and jazz do well with it though, and the subwoofer is very helpful when watching televised auto racing.
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also, did you move the leads with the speaker?
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So the old mid and tweeters are inactive and you raised the mid/tweeter by adding new? This is an interesting mod since most Heresy modifications attack improved bass.
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What is this conversion like inside?
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The question is not, "Would the K Horns sound their best?" The question is, "Would they sound better than what he already has?" and "Would it be enough better to justify the cost?" As an additional consideration, if he buys them and is disappointed he could still move them to his larger room. But the bottom line is he finally cleaned up his cluttered office! He deserves some K Horns!
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34 minutes ago, Coytee said:
I agree (about it being interesting)
I don't recall if it was a test CD or what.... but I once had something on that went down to (no idea) let's just call it 1 hz.
You could hear the woofer flop flop flopping. No sound per se, just the physical movement of the driver going back/forth.
The flop flop flopping got a bit faster and sounded like faster flopping (the frequencies were slowly going up)
This continued when all the sudden, the driver began to engage with the air and started actually PUSHING some air and now, having a 'sound' verses the mechanical sound of the driver flopping.
As the frequency continued to rise, this very low thrum became "bass" then midbass and kind of dissipated as the sound got above the crossover point to hand the sound over to the midrange/tweeter section.
I've never done this but it is a great description of what you know must be happening - the low frequency energy that is put onto the speaker has to go somewhere. This should alarm no one, low frequency tones, pre-subwoofer. have always gone into the main speaker, they simply do not make sound. The energy is dissipated as ineffective mechanical motion or heat. Yes a kid with a 1200 watt stereo can fry speakers, but you probably will not unless you do something really extreme. That ineffective flopping will cause IMD if other frequencies are present, I have no idea how audible it may be.
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Can you try them with a phone or computer? Via USB, optical or 3.5mm input...
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I do not have one but I would be interested. Is there good availability of material to play? What year does the music stop being available? ("Stop" as in, they quit making it.)
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When my Heresy 1’s were delivered (2020) I did not have an amp yet. I connected them to my iPad via a cable. They certainly did not “fill the room” but were enjoyable up close. Current amp is theoretically 70 watts per channel but I rarely crank it.
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Back to the topic, I love my basically unmodified Heresy 1's. I will admit that I never heard them new. I'd enjoy A/B'ing them with some brand new Heresy speakers but probably will not get the chance. I thought about the various mods and super versions and decided not to go there. I added a sub.
What I'd really like to compare is my unmodded Heresy pair to a new Heresy pair with and without the sub. I wonder where the best money could be spent, upgrade or just buy a sub?
I've tried them with one and two subs, (identical), I was happy with one sub and moved the other sub to the TV room. The next time I see a sale on subs I might add another so I can keep two with the Heresy's. But I am really happy now. Everything else is just curiosity. I understand and respect those of you whose curiosity leads you to do mods.
Edit: Call them what you want. It would be unscrupulous to sell them without revealing any mods
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Bought a pair of Heresy I's, for $400. Everyone said I needed to replace the capacitors, when I saw the price of capacitors I just bought Crites replacement crossovers. But I kept wondering if I needed new tweeters, so I bought replacement tweeters. I loved the better sound so I bought new midranges and woofers as well. Wow! I next decided to brace the enclosure, but by the time I had installed all the braces I realized that I had reduced the volume of the boxes. I made new larger boxes and matching motor board, to compensate for the reduced volume caused by the bracing. While I was at it I ported the back. My Heresy I's sound great now! I do not see why Klipsch had to mess around with the II's, III's and IV's!
Not really. I bought a pair of Heresy I's without grill cloth. I replaced the grill cloth (from Crites) and added nice banana jacks. While the backs were off to install the banana jacks I looked around and everything looked great, no signs of distress. Sorry for the long and untruthful lead in. 😀
Forte in Stereo Review 1986
in 2-Channel Home Audio
Posted
Can you post a picture? It would help. This can absolutely be fixed.