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Dave MacKay

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  • Gender
  • Location
    Mississauga, Ontario, Canada
  • My System
    1986 La Scalas
    - Crites AA networks
    - SMAHL tweeters & lenses
    2 x THTLP subwoofer
    Bluesound Node streamer
    Yamaha R-N803 receiver

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  1. If you do, and if you have the necessary gear, would you please take some measurements with REW before and after making the change? I'm interested in this topic but (unless I missed something) all of the feedback about improvement has been anecdotal and subjective. I'd find it interesting to see the actual difference that the damping makes.
  2. Most of the restorers I spoke with were not keen on doing veneer. I think that their typical work involves stripping and refinishing so that they didn't have the tools (e.g., vacuum press) that they felt would be needed for a large veneer job. The only one (Johnny's) that was prepared to consider the work has a wait list of about 6 months. He estimated that veneering and refinishing my La Scalas would cost about $3000. At the time I thought that was high (I only paid $2800 for the speakers) but I've come to appreciate that it was likely pretty reasonable. If you'd like to bounce ideas, share tools, or work together send me a PM. I'm in the Port Credit area of Mississauga.
  3. That would be fantastic! If held on-line (e.g., as a Zoom session or a pre-recorded seminar) people could participate from anywhere.
  4. Are you sure it's ouputting AC, not DC? Almost all LEDs require DC, not AC. Also, it would be very odd to use 4 AA batteries to produce AC (at any frequency).
  5. You misunderstood the intent of my post. Not all spaces will accommodate an ideal configuration. Mine won't. I wanted to explain what I'm working with, and what I've done to try to improve the acoustics. Short of selling my house, or moving walls, doors and windows, do you have any suggestions that might be applicable for my space?
  6. I'm sure you have a point, and I welcome the suggestions. Unfortunately, some of them aren't feasible for my space; I'm working with what is viable, not what would be ideal. My listening room is 22'4" long x 11'7" wide x 8'2" high. In the centre of one of the long walls is a pair of french doors; there is a fireplace opposite it. The short wall has another set of french doors at the rear, and a large window (plus hot water radiator) at the front. I regard the Main Listening Position as being mid-way between my wife's chair and mine. That point is in the centre of the room, about 2/3 of the way from the front. It's far from an ideal listening space. But it is what I have to work with. Some of your suggestions aren't feasible for my space. For instance: My La Scalas won't fit in the corners of my room because of the space taken up by the hot water radiator that heats the room. Since I can't put the subwoofers in the middle of a doorway and a window, I've put them in diagonal corners. The other corners have floor-to-ceiling bass traps. Although I don't have an equilateral triangle between the speakers and the centre of my listening position, I'm pretty close: instead of 60-60-60, I have about 70-70-40. Putting the chairs in the centre of the room would interfere with the ability to move around the room (because of the space taken up by the doors and the fireplace hearth), so that the listening position is back from the centre of the room. However, the distance from the listening position and the speakers is close to the same as it would have been if the speakers were in the corners and the listening position was in the centre of the room. The La Scalas are toed in so that they point at the listening position. That's about 25-30 degrees. The electrical polarity of my speakers (and drivers) is correct. Unfortunately, I currently lack the means to add a delay between the speakers and subwoofers.
  7. I hope you have better luck finding such a professional than I did. I called all of the furnture restorers within a reasonable radius (I live near Toronto, Canada) trying to find one to veneer my La Scalas. None would do the work. As a result, I'll be doing the veneering myself.
  8. It may be that the YPAO capability is differentiated (gets better) as one goes up Yamaha's product line. My experience with a lower-end Yamaha receiver has been that YPAO improves performance above 1 kHZ but significantly impairs bass performance (below about 150 Hz). Here's a link to the post where I shared what I measured (red line on chart uses YPAO settings; the blue line on chart is "pure direct"):
  9. @ricktate What veneer is shown in the photo? Also, what finish? It looks good. I plan to do something similar to my La Scalas. They are Raw Birch and had been coated with polyurtehane. To repair some damage (and address resonance) I stripped the finish and laminated 3/8" Baltic Birch panels to the top, bottom and sides. It turned out nicely, but they aren't cosmetically as appealing as I'd like. I haven't been able to find anyone to veneer the speakers, so that I'll do the veneering and finishing myself. However, I'm concerned that my skills aren't up to the challenge of veneering the bass bin. For that reason, I was thinking about just applying a fresh birch veneer so that I could leave the bass bin as it is and have a reasonable match. I like the look of what's in the photo. Did you veneer the bass bin along with the rest of the speaker?
  10. My experience, albeit with a different tool, has been similar to yours. I found that the Yamaha YPAO on my receiver made some odd settings, and that I couldn't override some of them. I've stopped using YPAO and am now running in "Pure Direct" mode where the input signal completey bypasses all processing and tone controls. I'm using REW and an external DSP to tailor the sound to my room.
  11. Room is 22' 4" long x 11' 7" wide. Ceilings are 8' 2". Two La Scalas are on the short wall. One THTLP subwoofer is in the corner behind one La Scala, the second THTLP subwoofer is in the diagonal corner. No room treatment (yet) but it's definitely needed.
  12. Here's a photo: I plan to veneer and refinish the speakers this spring.
  13. You can hardly go wrong. I have an even less expensive Yamaha (R-N803) driving my La Scalas. It addressed almost everything I wanted (except a pre-out and HDMI input) for CAD$999. You could likely find it for less. If I were to replace it, I would certaily want to try some of the new low-cost SS amps like Aiyima or the Topping PA5, which have had rave reviews on this forum. In any event, there's no need to rush into anything. Your new speakers will sound fine with what you have.
  14. I found that Yamaha's YPAO system made it much harder for me to integrate my subwoofers with my La Scalas. I ended up running my Yamaha receiver in "Pure Direct" mode (where all EQ and tone controls are bypassed). Try doing the same and see how it affects the sound. I would recommend that you download REW (Room EQ Wizard, it's free) and get a calibrated mic (e.g., UMIK-1) so that you'll be able to see exactly what your system and room are producing. With that, you'll be able to proceed systematically.
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