MarkKrochuck
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Posts posted by MarkKrochuck
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Trying to find a direct supplier.
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Does anyone know what the proper/industry name is for the T2A autoformer and where to buy it?
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Sold
in Garage Sale
11 minutes ago, Randyh said:Sold
Sorry, I meant for the lot.
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Sold
in Garage Sale
On 3/6/2020 at 5:21 PM, Pats3of4 said:I’d like to get $50 for it. If you want it, I’ll dig out shipping
Would you take $300 shipped to Niagara Falls Canada?
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1 hour ago, Keggerbra said:
Thank you mark for the info! That’s a very impressive setup you have there, now I’m shopping for amplifiers lmao
Do you have separate channels going to each terminal pair with the straps removed, or is it powering the entire unit with a single bridged channel?
It’s times like this I wish that I kept my fathers McIntosh stack and jubilees, oh how I was young and naive.
Sent from my iPhone using TapatalkSingle bridged channel (one amp for left, one amp for right).
Damnnnnnnn shame you sold Jubilees and McIntosh gear.
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I would try to have at least 200wpc to run them properly. I run mine with my Bryston 4B amps in bridged mono (800wpc) at sustained extreme volumes and they stay pretty damn clean.
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1 minute ago, Westcoastdrums said:
Looks like winner winner, chicken dinner
6 minutes ago, Dave A said:No doubt and I hope he does not do this. Playing with a B&C DE1085 driver lately that is really good out to 20khz and crosses at 650hz just fine. Not an 1132 but this silly thing does 280 watts and i am thinking of trying it out on those 415 bass bins.
What do you run below 650hz?
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33 minutes ago, PrestonTom said:
Please tell me that you are kidding ....
Choppy choppy
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1 hour ago, geoff. said:
I believe this is a knock off of an EV horn (that has a striking resemblance to TAD horn) that has a 600 hz cutoff but could probably do 500 with a steep slope. One member here does 400hz with a 48db active crossover (I think).
You would still need a tweeter.
Hey, your the dude with awesome CP-1 restoration!
Did you get the K-55s up in Owen Sound?!
They aren’t on my kijiji favourite’s list anymore, lol
Could have been the guy, I am not sure. He was trying to sell them for $160
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4 hours ago, Chris A said:
Interesting.
The problem is that the K-55 driver SPL dies above 6-7 kHz. You could reuse the K-77 tweeters and put the K-55s on the K-402s with a 1" to 2" adapter, which would eliminate the collapsing polar midrange horn problem of the K-400/401 horns, but then the K-77 would be too far away from the centerline of the K-402 horn. You could then move the K-77s into the mouths of the K-402s using a couple of straps across the mouth of the K-402 at 90 degrees to each other with the K-77 centered on-axis but at the mouth of the horn, and put lots of absorption material all over the reverse side of the K-77 tweeter to reduce the in-horn reflections of the K-77 assembly. Then you could use a DSP crossover to add enough delay to the tweeter to time align it to the K-402/K-55 driver. The same DSP crossover could also time align the K-402/K-55/K-77 assembly to the bass bin.
That would work...although it would be much easier (and probably cheaper in the long run) to buy a good full range 2" compression drivers to put on the K-402s and use a DSP crossover (like a miniDSP 2x4 HD) to time align to the bass bin--just like a two-way Jubilee or KPT-942. That would make a lot more sense, thus selling off the K-55s and the K-77s on ebay (which probably don't sound nearly as good as the 2" compression driver anyway).
Chris
I was thinking about cutting a square hole in the k402 and inserting a tweeter
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Hi all, I recently acquired a pair of K-55-V drivers for $100 and was wondering what options (besides the k400/401) I have for horns.
1. stick with k400/401 (anyone have some for sale)
2. This horn from (abc) or (xyz) is actually better, cheaper, etc.
3. What happens if the k-55-v is mated to a k402 horn?
thank you in advance.
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I run two Bryston 4B Pro on my Cornwalls (800wpc). I have also run the setup with a Carver PM2.0t (375wpc).
@RadBlue runs an Emotiva XPA-2 (300wpc) on his LaScala’s and they sounded great.
probably not what you would normally hear, just wanted to detail my experiences and would recommend either. -
On 2/2/2020 at 9:54 AM, RadBlue said:
I live in St Catharines (15 mins from ya
). I have LaScala ll's. First thing to note is horn loaded bass is a lot different than direct radiating. Took me a while to get used to it.
But now I prefer it much over the former. LS's only go down to 50htz so I have a pair of 15 inch subs. LS's have the same top end as the K-Horns(or very close) but don't go down as deep.
Jub's are on a diff lvl all together from what I've read.
My next project needs to be acquiring/building a pair of horn loaded subs.
If you want to drop by for a listen to get a baseline starting point for a reference just send me a PM.
Rest of my gear is below in my sig.
I pm’d you. Thanks!! -
16 minutes ago, HPower said:
I did sell my Jub clones a year and a half or so ago... huge mistake!
I will let @Chris A speak to how my set measured when he helped dial them in,
but to my ear I was very happy with the way they sounded.
After realizing my mistake in selling the Jub-likes, I refurbished a pair of Peavey FH-1 bass bins and
then paired them with the K510 / Faital HF-200 drivers in a custom top hat that I built for them.
This set up sounded pretty darn good but I found myself missing that K402 presence, so I then ordered a a pair
of K402 / K691 and stands to go atop the FH-1s.
Again, with Chris's help to dial them in, I am very happy with the performance.
In an other room, I have a pair of rough looking La Scalas that I am planning to refurbish this spring.
Although they are a little hard on the eyes right now, they do play fine and I am sure after I replace the Type AL crossover
with a nicely built Type AA and maybe upgrade to something like Dave's tweeter, they will be quite nice.
I am in Newmarket, ON which is about 45 minutes or so north of Toronto.
You would be welcome to come hear my set-up(s) if you like.
@HPower thank you for the offer, definitely wouldn’t mind hearing the Lascalas and whatever else you happen to have set up. Do week days or weekends happen to work for you? I am in Niagara Falls so you’re about 2 hours from me. I don’t know if you’re able to DM on this forum or not but you could email me at class_audio@hotmail.com -
1 hour ago, Chris A said:
That's a long room compares to the height and width. The following chart would tell you the relative bass reproduction goodness based on the relative ratios of the room (2.26 and 4.8), which is off-scale on this chart:
Your room is approximately 130 cubic metres in volume, so the chart is close enough in terms of overall volume but not wide or tall enough to show the effects of that very long dimension. Dark areas indicate good, white areas--least good.
My experiences with long rooms (especially of the 36 feet dimension) is that they actually can work well, but they tend to eat the bass performance of the loudspeakers (my room is 15.5 x 40 x 9 feet [152 cubic metres of volume]--which makes the ratios 1:1.7:4.4--which is also off the chart).
So if it's any consolation, I don't believe that the room itself is much of an issue. Perhaps exact placement of the loudspeakers along the short wall might be a factor, but my experience is that deep bass room modes are actually not accentuated by these room dimensions--in fact the very low frequencies and impulse events are more transparent than in shorter rooms which have to deal with a returning longitudinal wave sooner than a longer room. I actually get a sense of ambiance while playing impulsive music and very low frequencies--such as pipe organ, where I can actually hear the returning longitudinal reflection from the back of the room, and it certainly adds to the sense of space acoustically. The side wall dimension is very common (15.5 to your 17 feet) so no real scaling issues there. But the 7.5 high ceiling might be an issue. That gives a half wavelength at 75 Hz, which may be part of a possible bass perception issue. But no show-stoppers there.
So, bottom line...If you perceive a lack of bass support, it could be because you need more diaphragm or horn mouth area for that volume of room. The choices that I gave you above (KPT dual 15" woofer bass bins and the Jubilee bass bins in particular) will at least double the amount of bass diaphragm/horn mouth area of the Cornwalls. You apparently need more horn mouth or woofer area.
YMMV.
Chris
Im not entirely sure, going to lug the old Marantz over from my parents to see if its maybe a preamplifier issue I may be having because the subwoofer hits nicely, just nothing else. After that I may bring over the old read loaded horns but literally have like 5 pairs of huge speakers in the basement right now hahahaha. -
2 hours ago, Coytee said:
I think Turbox sold his (did they go to HPower?)
Say @MarkKrochuck Are there any direct flights from you to Knoxville, TN??
You'd be more than welcome to have the keys to the system here. Fly down in morning, jam all day, have lunch and return that night.
I'll pick you up from and return you back to the airport.
Honest offer if decide to do it.
Hey man, thats super generous of you, thank you for offering. I will keep it in mind if I am able to ever make it down there. Looking for something in the 2 hour driving range. -
Anyone near Niagara Falls, Buffalo, Toronto willing to audition some genuine or cloned Jubilees for me in the next month or so?
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2 hours ago, Chris A said:
The OP hasn't provided a picture or a hand-drawn drawing of his listening room (with length, width, AND height dimensions) and indicating loudspeaker positions in-room. Assuming that the OP knows something about small room acoustics, one can conclude that the tendency is toward bass heaviness rather than accuracy of reproduction-i.e., flat SPL response as measured in-room. That's why I recommended the KPT-904s or KPT-942s, which can easily be made to produce large amounts of bass in-room if the user chooses.
As far as your advice of the day, I've helped to EQ at least four different setups with homemade Jubilee bass bins, three installations of which were bought from the same gentleman who lives in OK. All required similar types and amounts of boosting EQ and all were made from the plans in the following thread which apparently has a serious issues acoustically:
I don't think it wise to propagate that same error over and over again. It's actually heartbreaking to have to deal with--and I wouldn't like to deal with it--yet again.
Read the thread that I posted:
Chris
my setup was posted above. 36’ long by 17’ wide by 7.5’ tall basement room. Closed doors. Speakers and gear set up on short wall (17’). -
29 minutes ago, babadono said:
Own all 3. Bass is best on the Jubilee hands down.
Is the Jubilee an actual Klipsch product or a DIY? Do you happen to live near me (Niagara Falls Canada)
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1 hour ago, Chris A said:
The plans on this forum for Jubilee bass bin clones have all had significant issues with low frequency extension, and all have required a large amount of boosting EQ below 100 Hz (this is first-hand information here) to compensate relative to the Klipsch-made Jubilee bass bins. In other words, I don't recommend the DIY version made from plans on this forum. You'd probably be wasting your time.
If you're thinking about low-cost alternatives to upgrading from your RF7s while still monoamping each loudspeaker, I'd recommend taking a look at the KPT (professional) series, namely the KPT-396 (actually a cinema surround loudspeaker), KPT-904-M (behind the screen), and KPT-942-M (behind the screen) in increasing bass and HF capability. All have direct radiating bass and passive crossovers.
If you want horn loaded bass, then the Jubilee home version (KPT-KHJ-LF + K-402-HF) bi-amped using a DSP crossover would be my choice. That subject can be further pursued in the following thread:
Chris
Wow Chris thanks for this info, I will research in the next bit
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12 hours ago, geoff. said:
Without exception, the ONLY time I have ever heard a system that sounded full WITHOUT tone controls was using a Canary Audio 300b, I think it was around 30 watts per channel, pushing a pair of PMC PB1i transmission line speakers.
Keep in mind, the entry fee for this kind of performance is more than I have spent on a new vehicle...
Audiophiles equalize their system with tube rolling, cables, fuses and power cords.
The rest of compensate for the sound engineer’s “mastering” with tone controls.
The reality is that unless you have exactly the same gear used in the studio, you are not hearing it exactly as the sound engineer did anyway, so how much onion do you really need to peel?
Every speaker is a compromise.
I understand what you’re saying but I feel like the bass is an order of magnitude off from what it should be11 hours ago, Randyh said:get yourself digital console mixer , plug it through your current preamp to add tone controls or use it as a preamp and you will have many -many tone controls -
some of these mixer consoles also have DSP , compressors , limiters , equalisers , and tons of ways to tailor the sound -
Thank you for the information!! Could you recommend an affordable digital console mixer? -
16 minutes ago, Randyh said:
the gear looks good
Thanks. Its the best I can do for now. On the quest for a better pre amp but tone controls are mandatory
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Can someone talk to me about La Scala Klipschorn and Jubilee performance.
I have the following three pairs of speakers (RF5s, RF7s, CP1 (Cornwalls) and neither have impressed me in the bass department. I feel like each one is probably off by about 6db of what they should be to be flat with the mids/highs. I quite like the mids and highs on all of them, the detail and realness. I dont find them bright, fatiguing, or shrill but the bass just doesnt match.
My current setup:
Yamaha SACD player
bluetooth music player
Panamax power conditioner
AMC 3150a integrated amp (used as pre)
2x Bryston 4B used in bridged mono
Audio Technica record player
Klipsch RF7 mk1 or CP1 used in stereo
Klipsch R115SW sub
17’ x 36’ room
I grew up with a pair of rear loaded horn speakers with 10” woofers on a Marantz 2235b and they blow any of my Klipsch’s out of water in the bass department and pounded your chest. Could I expect the same from Lascalas or Khorns?
I was considering building Jubilee bins but can’t find what would be the suitable 12” driver(s) to use.
Thanks
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21 minutes ago, geoff. said:
@MarkKrochuck, well...?
Did they kick the RF7s to the curb?
Or just start the ball rolling?
Nonetheless, way to save a classic pair of speakers!
not entirely sure yet. The Cornwalls sound more live/realistic but the RF7s may have slightly fuller bass, and an airy’er/more detailed mids/highs.
My room must be a bass killer because the RF7s and Cornwalls did not impress me in that department. But my sub sounds great. Wondering if I have a preamp issue at this point.
). I have LaScala ll's. First thing to note is horn loaded bass is a lot different than direct radiating. Took me a while to get used to it.
Wood Horn for K-55-V
in Technical/Restorations
Posted
Anyone here ever build a larger midrange horn made from wood for the k-55-v?