Full Range
-
Posts
5040 -
Joined
-
Last visited
-
Days Won
12
Content Type
Forums
Events
Gallery
Posts posted by Full Range
-
-
Those are the skinniest little evergreens I've ever seen along that driveway. Sure is a pretty place.
I think they are called pencil pines but they could also be young plants
It was a very nice place
-
1
-
-
Recently went to a wedding that was held at a winery on top of a hill
This photo is a look at there dam that's used for irrigation from above
-
2
-
-
I would recommend the Eliptrac 400
However I may be biased because I use one in my setup
-
This post are impressions from 2 persons during the measurement tests but mostly my mates impressions as my personal impressions are noted above on post # 48
Please note that we are novices at taking measurements and microphone positioning was troublesome but we gave it a go
It was an interesting day for my mate and I ( we built the crossovers together but he solders better than me )
Completed over 20 sweeps, didn't record some of them as they were just, 'hey lets try this', sort of deal.
We did record I think something like a dozen sweeps. some are presented below.
The first sweep is Full Range's preferred attenuator settings as I walked in. And I agree, it has the best overall presentation.
We upped the mid and tweeter levels just to try it, and in someways it sounded better, in others not so great, not bad, just not as good as it could be.
The bass near field, well I've no idea where to measure that with his speakers. We tried various positions for the mic.
Not one made any difference, so the one here is in the middle of the bass horn cabinet, 20mm from its front 'edge'.
I found the comparison with the listening position interesting.
Looks like a decent plot to me. But I'm learning so if anyone can shed their thoughts on it, please do, but be nice, I've got training wheels on
The sweep pre and post capacitor change (not really shown), supposedly should push the mid section up another 25 hertz. But I can't see any difference at all. ~ 500hz.
Some of the measurements are a bit strange, like the spike at 5khz.
We suspect it might be a combination of mic position and crossover design.
But I'd like to spend another day there playing with ideas and seeing where they lead. (sweep of mid on its own and tweeter on its own would prob be a good start).
Maybe raising the crossover point for the tweeter (~6khz) may help to flatten it out a bit.
The way the crossover is designed, the caps we changed are in series with both the mid and tweeter.
The sonic difference with the change of caps though. Wow.
The caps still need to break in, But its like the system can reveal 4 more layers of detail.
The impact of bass has improved several fold, the ringing on instruments (when its supposed to be there) has grown beyond the confines of the walls.
Theres more detail but a little harshness, I believe that harshness will disappear as the caps break in.
Break in is truely over since the time we did the sweeps in May 2015
-
When you have time, can you list your system components on the LaScalas and update your component and cost list on the crossovers.
Looks like JBL tweeter, Altec 802 mid driver and Crites woofer?
Did you take any measurements along the way for comparison purposes?
Very cool project!
Firstly speaker drivers and cabinet construction
Heavily modified Klipsch La Scala's
Double thickness sides and back with added braces
Bass bin extension - https://community.klipsch.com/index.php?/topic/108425-la-scala-bass-reflex-mod/
Drivers
Crites CW1526C 15 inch cast woofers.
Great Plains Audio 399 A mid compression drivers, fitted to -
Elliptrac 400 timber mid range horns with adaptors to suit 1”, 1.5” & 2” horn drivers
JBL 2404H “Baby Cheeks” tweeters.
Component cost
That may not be easy as parts were sourced at various times from various parts of the world, some were pre loved and some I already had on hand
Also my purchases are in Australian dollars so the ever changing exchange rate will create havoc with correct pricing
I have posted in the thread all the components used so it is still correct to the last post of changes / tweaks
We did some sweeps and will add a seperate post on that with photos
-
1
-
-
This is a start to finish thread on how I built my crossovers for my La Scalas - https://community.klipsch.com/index.php?/topic/149952-a-crossover-design-on-single-exposed-board/
-
1
-
-
Thanks for the info and pics! I like the idea that you experimented with the large-cell bubble-wrap - innovative!
Where did you source the foam cones from?
A craft store
I think they make topiary with them
I thought the closed cell foam was to placed to take up volume, not brace...
At the time my thoughts were that with the bass bin addition the sound waves needed taming
Bracing drivers has always been a decent upgrade as long as it doesn't take up too much enclosure volume. I can't image that the foam trees stay stiff enough to real do much long term... just my 2 cents.
Perhaps wedging a hard wood piece would be more beneficial...
Bracing would not help much as I use the Crites cast drivers and they are stiff enough
The sides and back of my speakers are double thickness as well
The cones are small and don't take up much space
Again my thoughts were all about the sound waves and how they interact with the extra volume of the bass bin
Thinking about waves mechanically I wanted to provide a nice smooth sound wave direction and transition to the lower section - no more no less
It's worked for my system
-
You folks know that I have modified La Scalas
No drivers are original
Custom Crossovers
Bass extension bin
But the reason for my post is due to the reference of foam behind the bass driver
I had experimented with this not knowing others have done it
On my system foam did not work well, so I had to find an alternative
Also found that large bubble cells worked better that foam
After a lot of experimentation, what eventually worked best for me was a styrofoam cone adhered to the magnet of the driver ( see photo )
-
A couple on moon photos at early dusk
I actually saw that aeroplane first and ran to get the camera, had no time so quickly snapped a photo on auto setting. To see it you need to expand photo #1
-
2
-
-
Mweiner / Full Range -
Thanks so much for the detailed information! I really appreciate the what you have each provided here. I am very interested in building a set of these, and what you have written is very helpful.
If I have it right, with the bass boxes, the speaker assembly should be about 50" tall, correct? Of course, that would not include any spikes, etc., to support the assembly.
I understand that you each have the LS sitting directly on top of the bass box; besides gravity, have you done anything to firmly affix the LS to the bass box?
Full Range - did you do anything like Mweiner to provide additional support inside the bass box?
Thanks again for your posts!
Probably better to post a photo or three of the inside frame & supports for you
Just remember that plywood is extremely strong
-
1
-
-
This photo is at the Gold Coast Queensland AU
This photo is on baby pumpkins that grew wild on my garden
-
4
-
-
Ford Motor Company will stop production in Australia soon
This is the last of a 500 build road registered Ford special vehicles to be sold
Ford GTF 351 Supercharged
-
1
-
-
Very nice systems and video links posted I watched them all
A video of my 2 channel setup when I was testing the custom crossovers
Speakers are custom La Scala
Enjoy
-
6
-
-
Thanks for the tip and link Zobsky
I will look into it
-
These are not in 'living room' measurements. These are open space 'in garage' measurements. The cabinet is positioned near an open garage door so as to avoid room effects.
Thread Drift: Hey DJK, did you put a bunch of hyperlinks in your posts? Most seem to point at ebay listings. I've never seen that before on posts within the Klipsch forums. The word "open garage door" had a link to a completed ebay listing, but the link did not follow my quote from djk.
(see post 11 for hyperlink reference of "open garage door")
I just hope something weird is not infecting the forums.
I see nothing
However it sounds like malware infecting your browser with key word recognition
-
1
-
-
In the near future I will devise a sliding port length system
I want to see how different port lengths can change the bass signature
Because all the drivers used are not Klipsch. Then a little experimentation is what's needed
-
2
-
-
The volume of the LaScala doghouse is 58 Liters.
The La Scala bass bins were custom built to the Klipsch blueprints so if Klipsch state 58 lt in the dog box then that's what it is
-
Fair enough
Good of you to clarify
-
Ask my ears what they like best ? And they will answer
For the room the speakers are installed - we like the La Scalas better with the bass box mod
Some things are what they are - they work or they don't
A modification can only be proved or debunked if it's built and implemented to test - simple as that
Question - Do you think the bass box would still be fitted to my speakers if the sound was worse
-
1
-
-
Very nice project that is similar to my La Scalas
Difference from yours would be in the port length as I currently have 11" with the Crites 15" cast
The bass bin makes a huge impact in the lower register
-
Hers is some info to read on woofer choice
-
My espresso coffee I drink a few times a day
-
1
-
-
I have made several observations after a break in period between the two capacitor types
I have had two good listening sessions since the Jantzen capacitor change
However about 40 hours of music has gone through the system to settle in the new capasitors
Fortunately the crossovers are fitted with attenuation in the mid range and tweeter section so I can tweak the db output to suit my room acoustics ect
So on to a description of my listening experience
Finally attenuation set on
- Tweet on -5 db
- Midrange - 11 db ( it sounds nice from 9 db to 12 db )
These atenuator settings have just the right and pleasing mix I like best for the room the system is set up in, but I change them to suit the material I am playing
Bass - Apart from the defined sound that we can hear - The bass presentation is fast and defined and also fuller longer notes at the same time, Bass also acts like a vibrating wave machine, the sound waves just bore into the body , furniture and walls ect
Mid Range - This section has had the biggest perceptible change
The soundstage is more expanded and I explain it in this way -
Notes start sharply and finish when the sound wave energy is depleted - drums, triangles , guitar strings, violin, piano, horns, breaking glass sounds ect - the notes just hang there if they are in the recording
Tweeter - Top end at first was not as clinical as before but as the caps have settled in the top end is now very sharp and subtly more musical kinda fuller but very sharp at the same time ( hard to find a word of explanation for it )
If one could see the sound waves you could describe them as hugging the listener
That's al I have in my report as I have written it as I was listening and describing my impressions for you as I listen in real time
-
3
-
-
Hi folks
Just another quick update -
As its been previously posted about the custom crossover build I have decided to make one small but expensive change on the capacitors
I have decided to change over the Sonicap capacitors (white) and replace them with Jentzen Superior Z caps
In this crossover build design , the Sonicaps feed the mid and tweeter.
So in effect their about the most critical caps in the whole xover.
This is the size difference of the two prior to fitting
And this after
DIY La Scala mid upgrade options
in Technical/Restorations
Posted · Edited by Full Range
That's a very similar tweeter position to my setup