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Dave MacKay

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Posts posted by Dave MacKay

  1. 15 hours ago, dug said:

    thanks for the response @001. so subs (ideally horn loaded i hear) but then also active instead of stock passive to route the below 100hz to the sub, right?

    Although I'm not operating a dance club, I'd suggest that you check out the plans from Bill Fitzmaurice for some DIY (or have someone build for you) subs. I have one (soon to be two) of his THTLPs. They have exceeded my expectations.

    • Like 2
  2. 6 hours ago, ClaudeJ1 said:

    More like 80 Hz., since below 104 Hz. the LaScala is not a short horn but, gradually, as you go lower and lower, it's a direct radiator firing into a really tight "corner".

    @ClaudeJ1, just trying to learn ...

     

    If the La Scala starts to drop off at 104 Hz, why wouldn't one want to set the cross-over around there (100 Hz - 110 Hz) while running the La Scala "full out" (without a high pass filter)? Not knowing any better, it would seem to me that doing so would let the sub would fill in from where the LS weakens. 

    • Like 1
  3. 1 hour ago, rplace said:

    Are you at all handy...like, can you snap Legos together? If so I'd suggest a PicanPi streamer and Volumio. 

     

    As for the PecanPi they sound awesome with dual Burr Brown DACs and a linear power supply...just slightly out of your budget. So for about 1/2 the price you can build  your own

    I had looked at the PecanPi but hadn't explored it in depth. I'd concentrated more on the HiFiBerry options.

     

    By my figuring, the cost of a DIY PecanPi, even if I repurposed a Raspberry Pi I already have, is pretty high:

    • Volumio Premium (required for Tidal Connect) = $70/year
    • PecanPi DAC (out of stock until March) = $350
    • Power supply = $30
    • Case = $50
    • XLR-to-RCA cable = $15

    That works out to about $515 with an ongoing $70/year cost for Volumio Premium. The pre-packaged PecanPi streamer is about $650 plus $70/year for Volumio Premium.

     

    By contrast, a Bluesound Node costs about $550 with no ongoing costs. The Bluesound Node seems like a pretty nice device. 

     

    I was hoping to find a less expensive way to test the waters.

     

  4. On 11/25/2020 at 10:22 AM, rplace said:

    These would be the streamer and DAC combo in post #1 picture. Not Roon, per se.  

     

    Not 100% sure since I don't do it, but they will have some way to manage your account and some way to play it (DAC). My experience has always been that the companies (Sony/Denon/NAD/etc.) UI/UX is lacking. Software built by engineers is terrible. It will work but you won't like it. Think web sites in 1994. The real joy of Roon is the actual use of the software. There are tons of way to play digital music throughout your house....most of them stink, IMO.

     

    I wasn't involved in the forum when this thread was active, but I found it helped me to better understand a challenge I'm currently wrestling with. I apologize for the length of this post; I don't understand the subject well enough to be more concise.

     

    I'd been uninvolved with audio for years, but have gotten back into it within the past year. I drive a pair of La Scalas from a Yamaha R-N803 receiver. The receiver has a great many features that I like. Until I got the La Scalas I had a lower-end stereo system and most of what I listened to was either:

    • MP3 files that I had ripped from CDs more than a decade ago
    • Internet radio (e.g., Radio Paradise)

    Despite having enjoyed the MP3s for years, I found them almost unbearable when played on my LS/Yamaha system. That drove me to try a streaming service. Because the Yamaha receiver supports Spotify Connect, and because I could share playlists with friends, that's what I chose. I'd been happy with Spotify until recently --- when I tried Tidal. I found that the sound on Tidal was considerably better than on Spotify.

     

    Unfortunately, my receiver only has good support for Spotify (via Spotify Connect); support for other streaming services is so rudimentary as to be effectively unusable. I'd like to have the flexibility to use Tidal (likely via Tidal Connect) from my tablet, and to be able to try Apple Music, Amazon Prime Music, Youtube Music, etc.

     

    So ... I need an external streamer/DAC that can hook up to the Internet, feed a signal to my receiver (likely via RCA), and be controlled by my tablet or phone. And because I'm just trying things out, I don't want to spend a lot for the device. I had thought I'd try a Raspberry Pi + HighBerry combo but couldn't sort out what was needed or how it would work.

     

    What would people recommend for an inexpensive (<$500) streamer+DAC that can connect to the Internet (via Ethernet or Wifi), allow access to Tidal and other streaming services, and that could be controlled via a good app (like Tidal Connect or the streaming service's own app) on my tablet or phone?

    • Like 1
  5. I'm also interested in this topic.

     

    I bought a pair of 1986 raw birch La Scalas last summer which had been coated with polyurethane so that they had a light amber colour. However, the cabinets had been damaged. As part of the repair, I laminated new 3/8" baltic birch to to top, bottom, and sides. I plan to veneer and refinish the speakers this spring.

     

    I'm not at all confident that I'll be able to veneer the interior of the bass bin. For that reason, I've been thinking that I'll use a birch veneer over the front, top, bottom, and sides (but not the bass bin or rear of the speaker) and then try to stain it to match the colour of the bass bin.

     

    So far I've experimented with Watco Danish Oil in both Natural and Golden Oak shades but neither has been a good colour match.

     

    I'll try a few other stains to see if I can find one that's acceptable. But I wonder if I might not be better off just to apply a clear polyurethane and let time darken the colour?

     

    All comments are welcome.

    • Like 1
  6. I agree with @001, the speakers look to be in very good condition and the $2800 asking price seems reasonable.

     

    Have a look at the "Garage sale" and "Alerts" section of this forum. That will let you see what La Scalas --- in a variety of conditions --- have been selling for recently. TLDR, the value of La Scalas has been going up. 

     

    Don't discount the fact that the speakers are only 30 minutes from you. Even if you were to find a comparable --- but more distant --- pair for less, any savings could be quickly eaten up in shipping costs.

     

    Here are some things that you might want to consider when you discuss price with the seller:

    • Ask the seller if he/she has made any modifications to the La Scalas. From the photos, they appear to be stock.
    • Although I tried zooming in on the photos, I couldn't tell what type of networks they have. If the La Scalas are from 1988, they are likely AL networks although it's possible that they could be AL3s (see https://critesspeakers.com/crossovers.html). The AL and AL3 networks aren't all that well regarded.
    • Ask if the capacitors have been replaced in the networks. Capacitors can degrade over time and it's very likely that 34 year old capacitors could stand to be replaced.
    • The black finish isn't to everyone's taste. If the cabinets were in a different finish (Raw Birch or a nice veneer) they might be worth a bit more.

    If the networks are ALs and the capacitors are original, you might want/need to update the networks. This doesn't need to be done immediately; take the time to listen to how the speakers sound before making changes.

    • If you wanted to stay with AL networks, new Klipsch-approved capacitors are available and are easy to install. They would run a couple of hundred dollars. Other brands of capacitors can be had for less.
    • Alternatively, you could replace the networks altogether. New networks --- of many types --- are readily available. In my case, I chose to replace the AL networks in my 1986 La Scalas with new AA networks from Crites since replacement caps were about half the cost of brand new networks.

    If I were in your shoes, assuming they check out OK, I'd try to buy them.

     

     

     

  7. 23 hours ago, gilligan said:

    I’m wondering if the bass would improve if I put risers on them like the new AL5’s have. 

     

    23 hours ago, gilligan said:

    I hope the snow stops soon because I would like to hear how your risers turn out! 

     

    Although I didn't brave the weather, just for giggles I put my La Scalas on some dollies that I had laying about. They raised my speakers 5" off the floor (not 3" like the AL5 risers).

     

    I didn't do a before/after test with REW and my UMIK-1 so that my observations are based solely on my hearing/perception. And ... I'll be the first to admit that my hearing likely isn't as discriminating as some others on the forum, so that my observations may not be entirely correct.

     

    I may have been seduced by the novelty of the change, but I thought the speakers sounded better: I thought that the music sparkled a bit more. But, if there was an improvement in bass, it was pretty modest.

     

    @Bubo may have explained why I thought the speakers sounded better.

    15 hours ago, Bubo said:

    LaScalas are all about the human voice, primarily on the mid range horn aka squaker

     

    Putting the mid range horn at ear level will definitely improve the human voice quality, specifically female vocal. aka Angels singing.

     

    I'll definitely be building risers for my La Scalas (and replacing the gaskets on the bass bins). Until then I'm going to leave them on the dollies.

     

    • Like 1
  8. Beautiful speakers!

     

    Since I'll be refinishing my BR La Scalas this spring, I'll follow this thread with interest.

     

    A few questions:

    1. What are the black rectangles on either side of the tweeters? Are they cut-outs? Velcro patches for attaching grills?
    2. I'm unfamiliar with prefinishing conditioners. How do they help? What have you used?
  9. On 1/4/2022 at 9:38 PM, geoff. said:

    if you’re ever headed north on the 400 my door will be open to you! The garage will be tight, but I’ll just put the snowblower in the driveway, lol!

    I was browsing through the forums and then this reference to the 400 caught my eye. Later in the thread I learned that you're near Barrie. 

     

    I'm in Mississauga. After wanting some for ~40 years, I picked up a pair of 1986 La Scalas last summer. I've been enjoying --- and tinkering with --- them ever since.

     

    I'd love to see your MWMs sometime, and just chew the fat with another Klipsch enthusiast.

    • Like 1
  10. 1 hour ago, chassell said:

    That seal around the access panel turns to goo after a period of years. You'll need to work patiently to remove it (wide paint scrapers worked for me to pry it open without damaging anything). Clean all the old seal residue off, check out the woofers and get new sealing gasket material from parts express.

    When I refurbished my La Scalas, the original gasket was still OK (in that it hadn't turned to goop). However, it had been squished so that it was about as thick as a playing card. I just left it in place. Would you recommend scraping it off and replacing it with a new gasket?

     

    I have some 3/16" thick x 1 1/4" wide self-adhesive gasket tape (typically used for sealing truck caps) that I used when I built my THTLP subwoofer. Would that be suitable, or would it be too thick? I should note that the packaging cautions against applying it to unpainted wood.

  11. 11 hours ago, gilligan said:

    Have you had any experience with bass bins for the LS? They are supposed to provide more LF extension but I’m not sold on the concept yet as I really don’t like to modify/tinker too much.

    I think you may be talking about adding a ported box to the bottom of the bass bin (see attached file). No, I haven't tried that.

     

    According to what I've read (mostly on this forum), the La Scala stops acting like a horn around 104 Hz and pretty much runs out of low-end at about 50 Hz. I wanted more of that "punch in the chest" bass that the La Scalas couldn't really deliver. To get the bass I wanted, I opted to add a subwoofer. After trying a low-end Klipsch 10" subwoofer (anemic) and an SVS SB1000 Pro (very good, but not enough for the La Scalas), I built a THTLP subwoofer (see https://billfitzmaurice.info/THT.html). Now I have all the bass anyone could want.

     

    I should mention that I made another change that may have helped too. Because of some damage to the cabinets on my La Scalas, I laminated 3/8" baltic birch panels to the top, bottom, and sides of the speakers. In addition to addressing the damage, that made the cabinets stiffer which is supposed to be beneficial by reducing resonance from the side walls of the bass bin. Others have added braces to address the resonance.

     

    Bass mod.JPG

  12. What a coincidence!  I've been wondering if risers would be of benefit to my 1986 La Scalas. I wasn't thinking of bass, just about getting the speakers closer to ear level when I'm seated.

     

    Just today I went through my notes about the AL5 risers because I was thinking of making some for my 1986 La Scalas. If my notes are correct, the AL5 risers are 3" high and are made of 1" MDF (just like the AL5). 

     

    When the snow stops I was thinking I'd rummage through my wood pile and make a pair of risers just to see if they make any difference.

    • Like 1
  13. 1 hour ago, OilyBoy said:

    orrrrr... the THTLP (never heard of them untill today) 

    +1 on the THTLP

     

    I built a THTLP and put it into service with my La Scalas a couple of weeks ago. It replaces an SVS SB1000 Pro (which replaced a low-end Klipsch 10" subwoofer). The THTLP is in a whole other league.

     

    I'm driving the THTLP from a Dayton SPA250DSP plate amp. I've been experimenting with the DSP on the amp.

     

    The THTLP produces a remarkable amount of clean bass. I don't have as much experience or as broad a basis for comparison as other forum members, but I'm deighted with it. So delighted that I'll be adding a second THTLP in a few weeks. (Two subwoofers can make it easier to deal with placement challenges and room peculiarities).

    • Like 1
  14. 11 hours ago, Dante Farfan said:

    Hello, how are you, I would like to know if someone could help me solve a problem.  I am going to buy some KLIPSCHORN manufactured on September 24, 1957, but I would like to know that Driver had the wooden horn?.... brand: Klipsch or University SAHF..., I can put the photos, on the Stickers of the cabinet it says SAHF, I need know which was the genuine, original for Sep 1957 .... thank you very much

    This question may go unnoticed (since it appears as a reply to an unrelated thread in a forum about subwoofers). I suggest that you post it as its own thread, in a different group (e.g., General Klipsch or Ask the Historian).

     

    I don't know the answer to your question.

  15. 2 minutes ago, Tom05 said:

    Hi Dave, I’m assuming these are main left right speakers. I’d try running them full range as I described in my first post. That would allow you to use every thing that the Lascala can provide, you would just be adding  what is missing ,and not taking anything away .Those Lascala’s have very high clean output way below 100 to110 hz , so you crossing over that high your sub has to make up for it ,and it just can’t begin to. Forget Audyssey , a manual setup is always better, stops acting like a horn at 104 that’s not  relevant . Also a 100 hz crossover point is 3 db down at 100 and down a few db at 120 and 1 db down at 130or whatever, that’s lots of bass to give away .Lascala’s are unique high output speakers , the setup rules are different than for ordinary speakers. For starters experiment at 60 hz 40 hz   absolutely not 100 or 80 whatever is easy to try . What subwoofer are you using is this for stereo or home theater? 🤓

    Yes, the La Scalas are the left and right speakers in my stereo (2 channel + subwoofer) system. I've paired them with one THTLP horn-loaded subwoofer (and will soon add a second).

     

    I believe it was from your posts that I thought to run the speakers full range and not cut them off at the crossover frequency.

     

    I don't want to through away lots of bass. 🙂 I'll experiment with lower crossover points and keep the speakers full range.

  16. Those speakers look nice. 

     

    For comparison, I paid CAD$2800 (about US$2350) for a pair of 1986 La Scalas that were not as nice as those. La Scalas are pretty uncommon here (in Canada) so that there may have been a bit of a premium on account of their scarcity. Mine were entirely original but had damaged cabinets.

     

    The fact that yours are cosmetically attractive and have had the networks serviced (which I imagine means recapped) should make them more valuable. I'd hazard that US$3000 would be quite a good buy.

  17. 42 minutes ago, Tom05 said:

    Lots of people crossover there LFE  to subwoofer at 90 hz , for years there was no other option .when you do this you better have one hell of a sub or , won’t begin to keep up. As I said bad move for the K-horn. Horn sub works , but as I say there are alternatives that will work.

    I'm interested in the discussion about where to crossover to a subwoofer, particularly as it pertains to La Scalas.

     

    I've been playing with how my subwoofer is set.

    1) I understand that the general rule of thumb is 80 Hz, and that this is what's used for, say, THX

    2) The YPAO (like Audyssey) on my receiver likes to set the crossover at 80 Hz (and a couple of times at 60 Hz)

    3) Because I've heard that:

        a) the La Scala stops acting like a horn at about 104 Hz, and

        b) the La Scala pretty much runs out of bass around 50Hz

       I've tended to set the crossover around 100Hz or 110Hz and to run the speakers at full (i.e., bass is sent out the LFE at that frequency, but all frequencies are still sent to the 

       La Scalas

     

    I know that I have some challenges with my room and speaker placement that need to be worked out. Thus far, I think those problems are masking the affects of different crossover frequencies.

     

    • Like 2
  18. 5 hours ago, MicroMara said:

    PLACEMENT
    Your La Scala Loudspeakers will perform well in a variety of locations but best results will be achieved using the following general guidelines:
    Place on a common wall 6 to 15 feet apart.
    Position them equidistant from the wall behind the speakers. Equidistant height above the floor with the high frequency drivers at seated ear height if wall or cabinet mounted.
    Angle speakers toward the listener and even with or forward of any adjacent obstructions.
    Placing them near a corner or wall provides the greatest amount of bass while moving the speakers away from room boundaries reduces bass energy.
    Asymmetrical placement of a pair of speakers from adjacent side walls can smooth room-induced bass unevenness.
    Experiment with the above guidelines to suit your taste and to compensate for your room's acoustic characteristics.

    I hadn't seen those guidelines before. Thank-you for sharing them.

     

    Where did they come from? (I don't disagree, I'd just like to know more).

    • Thanks 1
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