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RRFL

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Everything posted by RRFL

  1. My thoughts and prayers are with you for a full recovery, mate. I would make the surgical choice also if I was in your circumstances.
  2. Before I retired from my Gov't Job, I was a massive stand for all the staff doing driver awareness course and that was not limited to only the ones that drove Gov't cars. I argued that the cost benefits went all the way to include staff not having to have conversations about other staff having an accident on the weekend. The results were difficult to measure as there was a reduction in accidents and no one gave statistics on near misses, however, the damage to vehicles involved in accidents went down significantly for those who had done the course. So I reckon when they did crash they had washed of a lot of speed and did it softer. This resulted in an increase in only vehicle damage due to a drop in personal injuries.
  3. Avatar in 3D would be my request.
  4. The Belle by design does not suffer from the bass horn flexing that the LaScala does so bracing is not necessary. The Belle does not have the short straight section in the middle of the horn path that is said to cause a bump in it's response. The 510 horn with a K69 driver can be used in a Bi-amped time alligned set up and this would fit nicely into the top hat. IMO this would be a hard to beat combination. The Faital FH200 driver can be coupled with the Eliptac 400 as the top end. I'm considering 4 Belle bass horns for myself in double vertical stacks for corners. We are putting 4 Belle bass horns in a Sydney record store backroom / bar / nightclub in a quad box configuration so we can get an industrial look with the 4 horns together. They will be turned on their edges to fit into the limited space available and the wall behind removed to get extra depth so the back of the speakers will be the wall of the adjoining gents wash room.
  5. RRFL

    Tuba HT

    Good colour choice. If you lay it on it's side and point the mouth into the corner about 18" from the corner you can experience the corner loading effect which should cause it to go deeper, flatter and more sensitive at the deep end.
  6. emmm so is F-20 code for creating grandchildren in a Cinema, a system that dates back to the 1930's but has become recently more popular.
  7. I think the point here is to minimise the number of times the signal is run through a DAC. The more this is done the more errors there will be. If the receiver can play back from a NAS "network attached storage" then you can rip the CD's using a computer and then the receiver will do the one and only DAC transformation. It's always best to minimise the number of things in the signal path. The computer can possibly rip a CD at slow speed better than a CD player can play it in real time as the computer can go back over something and have a few goes at reading it, if necessary, when it's not being done in real time.
  8. The Tuba HT LP in 24.5" has the same sound as my LaScala so it gets my vote on that basis. I think the LP version is easier to build as there are less parts. I think the LP version is easier to fit into a room especially in the 36" width version as that's still only 18" deep. I'm interested in the Table Tuba also now as I have seen a build project where the teenager used dual drivers with a wide cabinet. there is also a LP Low Profile version which could be placed against the wall. It's possible to move a 36" wide Tuba HT LP through doorways and it could be placed between the wall and a Khorn or a LaScala using the 36" side to reform the corner albeit 18" away from the wall.
  9. Um that's me and I have not done that since last night. The retention of dynamics at low volume is something I'm looking forward to with my Jubilee also. It's very easy to listen to LaScala at low volume as I reckon your ears turn up the sensitivity and that the LaScala don't need a belting to get going I get the sense they get more real or invisible or become open windows the real sound just flows through. When you turn them up they become louder than you realise and you notice when you try to talk to someone or make a sound that you suddenly realise you can't hear. That mystery as to how loud you have them is there at very low volume. So now everyone, try it, close your eyes, focus on the music and you can loose your perception of how loud it actually is. I say it's the "Fully Horn Loaded" bonus. I know the Jubilee are way to powerful for whatever I would ever ever need and it's that head room plus plus plus that first initial absolute detail that is extremely interesting for me. The Nelson Pass amps I got for my jubilee will deliver this level of impeccability in the first watt. Of course you can listen like that for a while and then you just need a good "bungy jump" and that's totally available. Yes all the room defects diminish at low volume, but there is also low volume out in the open on a farm on a still day. Wow you sure did push my button with this one, now I'm chomping at the bit to go to bed. First of all I might do something light, lol emmm Sergei Rachmaninoff
  10. Well Mate, what can I say, that's a bit of bad luck, so go for the gold, what ever it takes, be unstoppable and draw strength and power from everyone around you as that is given in abundance.
  11. RRFL

    Tuba HT

    Ohhh and btw, to test for leaks you need a reasonable length of soft plastic hose. Open the woofer chamber and apply 20hz @ 10volts. Place one end of the tube at your ear and move the other end around the joins and around the driver. Any leaks will make a hissing sound you will hear through the tube. The 20hz will not pass though the tube. I tested the woofer cover with it not properly screwed down so I knew what it would sound like. You could use 2 people to do this one to listen and one to move the other end of the tube, since you only have 2 hands. The person listening can have a beverage while comfortably listening on your lounge. Please attach a photo if you choose this option.
  12. RRFL

    Tuba HT

    I was considering using that DVC driver with a 200w/ch into 8Ohm stereo amp one channel per voice coil. The ART-SLA2. http://www.parts-express.com/pe/showdetl.cfm?Partnumber=245-861 I got 4 of them for a bargain price and 1 is on test driving my LaScala and I like it a lot.
  13. RRFL

    Tuba HT

    Consider corner loading of your tuba by suspending it 18" above the floor mouth pointing down. Your Tuba is 36x36x24 so if you place it mouth down with the long side of the mouth parallel against the wall that is away from your lounge. The 36x36 side should be against your rear wall. Then you should have clearance to raise it up 18" above the floor. Your mouth is 24x15" so from the mouth side of the cabinet 36"-15"=21". so you have 36"x21" to support it from the floor. Therefore, you can sit the Tuba on an open frame "plastic milk crate" about 18" high under the 21"x36" area next to the mouth and it will balance like that for testing purposes. The area under the tuba will cause the sound to flow out across the floor. If your lounge is hard up against the Tuba it should feel interesting at least. The recommended distance above the floor is 16" - 24". Effectively, you would have the same setup as in the picture of the THT LP except you have a 36"x21" flat area along the long edge of your mouth. Experimenting, with the height above the floor is recommended to find the sweet spot. You could get a couple of mates to hold it up while you listen and get them to raise and lower it. I would not volunteer for this job as I play piano and have delicate fingers.
  14. RRFL

    Tuba HT

    Hey Jason, I posted those pics on here specifically as you asked about how to properly corner load the THT. The pics showed how a THT LP was properly corner loaded and mounted to the wall at the base. I also posted the quote from Bill Fitz the designer about corner loading. I can see from your photos and your comment that you may have missed that I was answering your question with details of a successful installation. In this installation the THT LP is so effective it will never be pushed past about 50watts. The QSC RMX-2450 amp driving it can deliver 10 times that amount of power in to the 4ohm driver. So there is IMO a problem with your non existent corner loading of the THT. Did you do anything about the length of the horn path and time align the rest of your system to take care of this important factor. If not the output from the THT will not be synchronised with the rest of your system.
  15. FWIW, if anyone remembers the old Memorex commercials where Ella Fitzgerald sings and breaks a wine glass with her voice ~ (Is it live? Or is it Memorex?), well, it's neither. It's Klipsch LaScala! I have a copy of the press release somewhere. They pumped a peak power of over 1KW+ into an industrial LaScala. They claimed the resulting instantaneous SPL was something like 140dB. There was also a disclaimer and warning. "Don't try this at home. The resulting sound level will cause immediate and permanent damage to hearing and possible damage to internal organs". Why aren't we using these things in Afghanistan? I expect the Belle are a lot safer with the flat nose, though.
  16. What about the Belle I was wondering about the difference to the LaScala?
  17. RRFL

    Tuba HT

    Looking into the mouth and you can see where I joined to short bits of ply together in the centre of the cross brace with the router and the wall mounting bracket.
  18. RRFL

    Tuba HT

    Looking into the mouth from below and you can see the mountings on the 2 walls.
  19. RRFL

    Tuba HT

    I Quote Bill Fitzmaurice "Boundary loading should be used whenever its practical to do so. Having subs next to a wall gets you up to 6dB of additional sensitivity below about 80Hz, and putting them in a corner up to 12dB. In most cases youll have best results with the cabinet mouth against one wall, about 18 inches from the adjacent wall. If the cabinet mouth is a quarter-wavelength from a boundary there will be up to a 24dB deep cancellation at that frequency. Within the nominal bandwidth of the THTLP a quarter-wavelength ranges from 19 feet at 15 Hz to 2.8 feet at 100 Hz, so middle of room placement usually wont work well. You may put the THTLP upright aimed at the ceiling, or on 16 to 24 inch legs aimed at the floor. Every room is different, so try a variety of placements to find the one that works best." This is mouth pointing down. The THTLP is 72x18x24.5inch. It's awesome, I got to visit it again today and give it some tweaking. I was playing the Danley test tracks Fireworks Finale4.wav Full coal train with Helper.wav Harley.wav TrainStart.wav Madonna, Deeper and Deeper, Rain, Vogue and others. The low end rolls out below your hearing. There is no woofer sound. It just sounds real. The trains sound like your standing next to the train. I was checking for time alignment and settled for a delay on the High Frequency Units of about 10.99 feet.
  20. It is a remarkable horn with a rubber throat that is actually made from wood. While it technically starts to roll off @ 100 Hz it will put the majority of speakers on the market new or old to shame. It is one of the most enjoyable and exciting speaker's ever and is extremely compact for the performance it delivers. The Lascala is eco friendly as you only need 1 Watt for wife friendly listening pleasure. For drunken parties it is the speaker that still works "the day after".
  21. Pass Labs Amps the one one the left looks like the pair I have for my jubs.
  22. Wow I always wanted to here a system cranked up to 100 db's, remarkable.
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