NBPK402
-
Posts
2895 -
Joined
-
Last visited
-
Days Won
5
Content Type
Forums
Events
Gallery
Posts posted by NBPK402
-
-
I am working in a 2' (approximately) cube MEH. It will be using my EV DH1A driver and most likely a pair of Emminence Kappa 15C woofers (same as my k402 MEH). Hopefully it will compare well. I am planning on it being built out of 2 layers of 3/8" bendable plywood, but we might do it out of kerfed plywood. Time will tell as to which is easier, and less expensive to build (I do not want this to get more expensive than a k402 or the only benefit will be size). I might also build a sub to go under each cube to get down low for movies too. It would most likely be a seperate box custom folded horn...with the MINI on top.
Sent from my SM-T830 using Tapatalk
-
You would have to stagger the woofers wouldn't you...which would throw off the position of the woofers behind the port, wouldn't it? I have also thought of this, but I do not know how staggering the woofers would effect the sound.and why not go with 4 woofers while you are at it -Sent from my SM-T830 using Tapatalk
-
1
-
-
I got both Pfizer shots with only a pain in the arm that I got the shot, and a little bit of tiredness. I still wear my mask and practice safe distancing. I will continue to do that until there is no more COVID...regardless of how long that is.
Sent from my SM-T830 using Tapatalk
-
1
-
-
Possible inexpensive amp for K402s... $250.
Sent from my SM-T830 using Tapatalk
-
3
-
-
Here is some info on the AmpCamp amps...I will be using them for my compression drivers for serious enjoyment.
https://www.passdiy.com/project/amplifiers/the-plh-amplifier
Sent from my SM-T830 using Tapatalk
-
1
-
-
I have not heard of that amp. Have you looked at the AmpCamp DIY amps (Class A)? They should be more than enough power for a k402 compression driver.
Sent from my SM-T830 using Tapatalk-
1
-
-
Makes sense, since masks do not care what strain you have and still protect you better than no mask. I saw a report this morning that apparently they have not been testing t cells, and the numbers could be much higher on who is infected.
Sent from my SM-T830 using Tapatalk
-
Just got my 2nd shot, so far fine. What I meant was I am hoping the 3rd and yearly have no side effects.the 2nd shot , no side effects ------not so sure
Sent from my SM-T830 using Tapatalk
-
1
-
-
I get my 2nd in the morning... I hope that if they have a 3rd shot it will be like when I got the 1st one...no side effects.A 3rd shot may be likely, says Pfizer CEO.
https://www.cnbc.com/2021/04/15/pfizer-ceo-says-third-covid-vaccine-dose-likely-needed-within-12-months.html
Sent from my SM-T830 using Tapatalk
-
I think I have the same ones (I have had them for at least 3 years). I also purchased this year a pair of Drop 6xx (Sennheiser 650s made for Drop), and today a pair of KZ ZS 10 PRO EIMs.The last headphones I remember owning were a pair of Sennheiser wireless that I don't think I paid $200 for. I am going to be without my main HT for a month or two but will still have a 55" monitor and AVR/4k player/Youtube with time to kill. What's the cheapest I can get away with (wired and wireless) to still get decent sound? Thanks. [emoji4]
Sent from my SM-T830 using Tapatalk
-
1
-
-
I guess I do not need one for my IFI Signature DAC then.iPurifier2 USB Type B Digital Noise Filter: Amazon.ca: Industrial & Scientific
Is something like this what yer thinking of. From what I've heard if your DAC has built in jitter filter/re-clocker these are redundant
Sent from my SM-T830 using Tapatalk
-
Wow...now you have a right to choose in the military!---You're very right , we had no say , we'd end up in the stockade under MP Escort , if we refused , but today things have changed --
Sent from my SM-T830 using Tapatalk
-
1
-
-
Now here is a question... if you get Phizer this year and next year they say you need a booster and Pfizer is not available for you...do you get Moderna? Possible problems with using a different vaccine?news April 8 2021Moderna’s Chief Medical Officer Tal Zaks on Wednesday said the company should be able to supply booster shots by the end of 2021.
Moderna says its booster shot against COVID-19 variants is on the way
Moderna’s Chief Medical Officer Tal Zaks on Wednesday said the company should be able to supply booster shots by the end of 2021.Sent from my SM-T830 using Tapatalk
-
Interesting...when I was in the USAF... They said they own you until you seperate from the military.Nearly 40% of Marines have declined Covid-19 vaccine
Nearly 40% of US Marines are declining Covid-19 vaccinations, according to data provided to CNN on Friday by the service, the first branch to disclose service-wide numbers on acceptance and declination.As of Thursday, approximately 75,500 Marines have received vaccines, including fully vaccinated and partially vaccinated service men and women. About 48,000 Marines have chosen not to receive vaccines, for a declination rate of 38.9%. https://www.cnn.com/2021/04/09/politics/marines-coronavirus-vaccines/index.html
Sent from my SM-T830 using Tapatalk
-
1
-
-
I agree...someone replaced the bass bin entirely.On second thought, the woofer mounted to the front of the motor board, is not Klipsch-like, which makes me think Klipsch did not construct the bass bin. Nonetheless, IMO, this is NOT a modified La Scala bass bin.
Sent from my SM-T830 using Tapatalk
-
1
-
-
Yup, looked exactly like that one.,3xcept I think it had a Rogers amp.Could be this one ------LS BB-1976 ----Alen amplifier SS 100 watts mono with Lpad -- Midrange and tweeter -top panel of the top hat is removable with 8 screws - Amazing creativity , a self-powered LS IN 1976 -Sent from my SM-T830 using Tapatalk
-
I purchased a LaScala years ago that came with the amp included for Organ use. The one I had looked exactly like a LaScala, but was black.
Sent from my SM-T830 using Tapatalk-
1
-
-
No...my response was about the poster with the cornwalls. I am building a smaller square k402, in a custom cabinet.
So, you are building a smaller horn to fit a pre-existing box you have at home?
Sent from my SM-G985F using Tapatalk
-
Is the Cornwall cabinet deep enough?
Sent from my SM-G985F using Tapatalk -
[mention=62555]Chris[/mention] Would it be better to assemble some wall acoustic treatment panels to make a box around the front of the speaker, and have the mic inside of the acoustic panel box? Sorta like a acoustic panel mini anaholic chamber for tuning your crossover?
Sent from my SM-G985F using Tapatalk
-
If you need to buy speakers... I would buy used, so you can get better ones for your money.
Sent from my SM-T830 using Tapatalk -
Do you have any pics of the mods?Interesting to see you have given this driver a try.
It was my intention to stay away but I will give it another try.
For the upper frequencies boost this is a good place to use the HI SHELF option on the xilica.
Use a very high Q setting around 7000 Hz. Boost will be dependent upon your setup. I would say exactly what it is but i am at work. You will gain a bit more phase change but also gain a smoother response. I go with Geddes dictum of frequency response is the most important of all parameters.
I had noticed (using the RTA) that while listening to music there was very little output at the high frequencies so why not boost it up there? I have boosted as high as the xilica will allow and at home listening levels I never heard any bad effects. This was when i was trying to retain the sensitivity in the lower regions. Now I am splitting the difference between the low and high to keep my filters in balance - too much boost or cut affects other parts of the response more than we want. I am not sure if amplifier quality has a bearing here asking for this boost at these frequencies. I have not tried any amplifiers other than the ones I have.
I have found the MEH sounds best when you throw away most of the acoustic transformation. Luckily even with low powered amplifiers the things get plenty loud.
I think it is a bit of a misnomer to consider the K401 MEH a horn loudspeaker in the classical sense - at its best we are using it as a waveguide.
I have come to conceive that most of what most people object to in a horn loudspeaker is the sound of the acoustic transformation, The most notable exception is Romy Besnow who seems to thrive on it but then he is using his horns in very limited frequency ranges so the acoustic transformation is more equal between the various horns whereas with our systems we are blending the two modes and I suspect this discontinuity is what most people identify as "horn sound".
No question in my mind the CELESTION is the best compression driver I have ever heard. I never got a chance to try the 4002 which is said to be greatly superior to the 4001s I did use for few years. The 4001 is said to only work with its companion horn. Using the Edgar round horn it sounded pretty bad - but the reputation of the thing kept me listening to it long after my ear/brain said REPLACE THEM. Of course, everyone knows this now.
My system has been completed for a few months now and I still keep tweaking the EQ - funny thing is - no matter what I do the intrinsic nature of the loudspeaker is always there and the intrinsic nature is very fine. There is no doubt when one finds something that works better but this is not hyper critical. One could easily come up with a decent sounding setup without much trouble. But of course, with a fascinating puzzle like the MEH and xilica the desire to try to get it a little better every day is impossible to resist, getting really close though.
No question the speakers are dynamic beyond my expectations. Drums sound more like drums than I have ever heard - even at reasonable volume, there is no need for them to be LOUD to hear something that sounds like a tom or a rimshot. - the center image is rock solid and the space between center to the sides are well defined - the loudspeaker disappears. The tonality is simply realistic. Massed strings sound very refined. Vocals can be eerie in their realism. Blah, blah, blah
I had hoped these speakers would be better than my previous setups - I knew they would be better and I knew they would take up much less space but I was and remain extremely happy with how much better they are. I cannot imagine anything I could afford that could come close to what I am hearing.
I have found that placing a two inches sheet of 20 ppi reticulated foam with a cut out for the opening - but a bit smaller than the horn opening makes for a greatly improved sound. This seems to be well documented as something that improves any horn.. In my case it was instantly apparent. One would think there would be a loss somewhere in the response but in actuality dips in response in the 5 to 7 kHz region were mitigated.
Another thing to try is a very stretched out bit of long fiber wool right at the CD opening. Visually transparent - I used two sided tape.to keep it in place. Makes a minimal change in measured response at 18 to 20 kHz but the the sound becomes much more refined. I think both of these things are affecting the horn far more than the driver.
No question the 401K MEH is a great loudspeaker, a great stereo loudspeaker and the Celestion driver is an important part of the whole in my experience.
Sent from my SM-T830 using Tapatalk
-
How about a router bit?The hardest thing was cutting the corner of the front pannels.
With simple table saw of my brother it is difficult cut 30° angle.
For that reason i have to finish manually with sander.
Harder work but the result was very satisfactory.
Sent from my SM-T830 using Tapatalk
-
1
-
-
SOLD.
Sent from my SM-T830 using Tapatalk
Nearly Full-Range Multiple Entry Horns (MEHs)
in Technical/Restorations
Posted
I have a k402 that I made a copy of the curvature of the short side of the horn with bendable plywood, and kerfed mdf. All 4 sides of my horn will be the same size so modeling off of one side should work. I am awaiting some 3/8" bendable plywood now I am planning on forming 2 pieces together for a 3/4" thick horn. Hopefully I will have the pieces ready by the end of the month. I only made the template to go from the flange for mounting the compression driver to the flat area on the mouth of the horn. I think I will have a picture frame style piece made that can be added to the front for the flat area. I am also thinking of making the pucture frame part flat on the backside, and curved to match the horn contour on the front...if this makes sense.
2nd image is the contour of the k402 short side template for bendable plywood.
Sent from my SM-T830 using Tapatalk