Dave A
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Posts posted by Dave A
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7 hours ago, CANT said:
As a possibly relevant side note:
I am using 315LF's and not 904/940's so according to the active literature we've been discussing I would need to attenuate my HF -2dB, which I originally did when I started playing around with this setup by inserting a single series resistor prior to the + input of the network. I considered this solution simple and effective for what I was attempting and this method appears to be commonly used in current Klipsch networks. As an example this Jubilee/402 network supplied by Roy allowed the owner to insert a value 0-4ohm (0 to -3dB) inbetween the network and the K69A driver "to taste".
In any case, I found that the -2dB suggested was not quite enough and end closer to double that using a 5ohm resistor. This experiment would make me wonder if those using the 904/940LF might not want to try using a 1-2ohm resistor (-1 to -2dB) in the same manor.
I am saving that one and had not seen this before. Thanks for posting it. That thing is way more complicated than the very basic 904 HF-LF crossover.
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My wood choices have been based on Klipsch veneer types in common use. I am rethinking this as I like the endless variety of wood. Good dense wood is a blessing when machining although Walnut seems to cut like butter even though it is not all that dense. Some of the really hard woods I guess can be hard to stain or oil though.
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I had some Walnut crotch wood I cut some lenses out of just for the heck of it. Some spalted Walnut also I am going to try one day and on the ridge top there are some Dogwoods I think I can get stuff out of. A pink and cream mottled appearance and really different. You start looking at all the wood out there and wheels start spinning. Mulberry of all things is yellow black and so is Osage Orange. Going to try a set out of Black Locust too this spring as I think it looks good and I have plenty of it well seasoned and I think stable enough to use.
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I am bringing the big hammer.
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On 1/22/2020 at 3:53 PM, geoff. said:
@rmlowz, please share these with us when you get them.
maybe even dedicate a separate post to it (for sure)
I think an L-pad would be just the ticket for the K510
some recordings are perfect, others too hot
I tend to think the right way is to use something like Audacity to fix the music and not have to change settings for different songs. I look forward to Chris and Audacity 101. Audacity is a required tool in your toolkit for audio as far as I am concerned.
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On 1/22/2020 at 11:07 AM, davis419b said:
In my house Klipsch speakers must stand on their own 2 feet ! I have been a member here for 12 years and still don't know what a PEQ is.
All I can say is hearing will make a believer out of a skeptic. I have a test case here and it is the 904KPT with factory crossovers and then the Xilica and bi-amp. While not dialed in all the way yet the electronic DSP stuff is the clear winner. I fought "unneeded" complications until I built the S-MWM's and will not ever go back.
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On 1/22/2020 at 11:44 AM, Chris A said:
I'd check your signal stream--like your sound card (if you're not using digital output from your computer that's serving your music files).
The problem is with the 510 and DE75. Other speakers work just fine off my system.
On 1/22/2020 at 11:44 AM, Chris A said:This could also be the source of the problem--quite easily.
This was a comment of curiosity thinking of how much improvement there was with the phase plug update on 1132 drivers. The DE75's on the 510's have what appears to be the same phase plug as the old 1132's and most definitely are not the new versions.
On 1/22/2020 at 11:44 AM, Chris A said:Likely a problem. I'd push down the HF SPL response above ~5 kHz by about 3 dB/octave. The figure below shows screen attenuation of two different types of "MicroPerf" screens.
I figure this is the likely culprit and will work on this aspect first.
On 1/22/2020 at 11:44 AM, Chris A said:We'll discuss this at SWAG
I look forward to doing so. It will be nice to meet the face behind the comments and help.
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9 hours ago, Randyh said:
are these all klipsch speakers
Yes. 415 bass bins, KPT 904 LF and 510HF's, KPT 100's and 200's
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Hi all, not ignoring but out of town on a job. Back today and achy so I will respond to new comments tomorrow.
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1 hour ago, davis419b said:
I have had the 904's for several years. They came with 510 horns and BEC DE75 drivers. They were too hot for what I liked so a forum friend of mine made me some jumpers to tone them down and it worked well. Later I went to the 402 horns with pAudio BM-750 drivers and have enjoyed them with no issues.
I will try this. 402's still needed PEQ's here but they are stellar when set up right.
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These are still here? Great opportunity and he who hesitates looses. Can't believe no one from the forum in reasonable distance has not bought these.
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2 hours ago, windashine said:
@Dave A - can you display a picture of your HF crossover board ?
Later, heading out for a welding job right now.
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22 hours ago, CANT said:
I've noticed it too but can't isolate it...
The high Q value and distance from the crossover point make me think it is whatever is causing "PEQ2: 3.7kHz Q: 5 Gain: -3db" in the active settings.
Surprisingly the KPT-Grand HF-T (510/69) similarly requires
"PEQ4: 3.5kHz Q: 7 Gain: -2db"
"PEQ2: 3.8kHz Q: 5 Gain: -3db"
in certain applications despite being crossed at roughly 4kHz in those applications
I think this is the right direction too when I have time to fiddle around.
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On 1/21/2020 at 9:33 AM, Pete H said:
Is he saving his vacation days for April?
Don't know you will have to ask him. SWAG never came up in topic except to contemplate the faces of attendees when they heard the S-MWM's
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Will do. The KPT-456's sounded fabulous with crossovers and needed no tinkering. Different horn and that lovely 1132 driver on them though. These 904's are a different animal.
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The best way is to post a WTB in the garage sale section of the forum. You might have to post a few more times to get to do so though. The next best thing is EBay where everything Klipsch will show up sooner or later. In the USA Klipsch will not sell you that horn unless you can provide a serial number, picture of damage to existing horns as the reason why you need two and you are the owner. In other words you can forget getting them from Klipsch
Laughing at myself today as I see this was posted by OP in Garage sales. Note to self do not respond without going to the thread and reading it all.
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Yes, tomorrow, but instead of staying here two to three days it is now just one so I am not sure what all we will get done.
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4 to 5 khz seemed to tame the majority of it but I have not spent much time fiddling either. Hoping to learn REW and approach this kind of problem the right way. Perhaps hot is a better word than crackly.
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Everything is checked and no it is not the Xilica since other speakers work just fine. I figure it is A, needs better settings in the Xilica or B, the crossover is set up to work through a movie screen and as a result is 510 is hot to accomplish this.
Looking for someone who has worked with this setup and has practical hands on knowledge of what to do and is familiar with this problem.
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Anybody with this setup care to answer?
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On 1/15/2020 at 5:49 PM, Woofers and Tweeters said:
When I started letting my MCM breath for the first time(s), the acoustic ceiling tile sprinkled a lot of dust over everything. I can only imagine that these tile will be hopping up and down. 😀
Well I was doing a sound check today as Claude is going to appear on my doorstep Tuesday. I had some bubble wrap next to the mouth of one of the bass bins and it was flapping around like those deep bass hair flying videos on Youtube. Really gratifying to see and my wife mentioned things were vibrating in the house.
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OK why vinegar?
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I will be there Thursday too and do we have access to the rental building Thursday and if so what hours are we able to get in? It would be nice to set up the day before to allow for good use of the time when all are there. Maybe I will get there Wednesday evening to be ready to go Thursday morning. I will be available to help you in any case Chris.
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39 minutes ago, wvu80 said:
Here is a Youtube vid of the RP-600M. One is heavily modified by having the box damped, replacing the binding posts with tube connectors and having the XO reworked with high quality components. Their upgrade kit is $209.
I own the 600M and was considering the kit. I listened to the A/B on my 600M's. Please listen to the sound clips and tell me what you think. The early section is just A/B stock vs modified. The latter part of the video is an A/B of the stock binding posts vs the tube connectors.
Well I would never buy based on a Youtube video. I might decide I am interested in something enough to go hear it in person but never buy based on a video with all the reality problems that will have..
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Southwest Audio Get-Together
in Forum Meetup Planning + Past Klipsch Pilgrimages
Posted
you mean it might sound like s#it?