taloyd

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  • Participant
    taloyd on · in reply to: FS: 2x AE IB15 HT, 2 for local pickup in Los Angeles #11334

    Sold, thanks!

    -Tal


    Participant
    taloyd on · in reply to: Sealed vs Ported enclosure for my AE TD12s & AE TD6m #11358

    Hello,

    Looks like you have all the ingredients to built a very, very nice speaker (especially the MiniDSP, as without that you’d be quite handicapped with passive crossovers).

    I’d recommend posting on the DIYAudio.com site, as there will be much more visibiblity, and you’ll get much more response than here. You can even copy/paste the message.

    Best,
    Tal


    Participant
    taloyd on · in reply to: Stryker Custom Mini Thunder 4 Sale #11276

    Dave,

    I’d also try the DIYAudio.com forum.

    -Tal


    Participant
    taloyd on · in reply to: Jl audio 12w3v2 single 15" passive radiator build help #11265

    I’d try posting this on DIYAudio.com.

    I’d also download Unibox, find the T/S parameters, and play with that.

    Best,
    Tal


    Participant
    taloyd on · in reply to: W-baffle for IB 15 #11152

    Hello,

    I’d make the satellites sealed boxes that will naturally provide a high-pass filter by virtue of the air-spring. Then get any plate amplifier with high-level (amplified speaker level) inputs, and just run some additional wires from the amplifier going to the satellites to the subwoofers. Fiddle with the low-pass frequency dial on the subwoofer plate amplifier until it sounds nice. Something like Mark Audio drivers would be great with a low power (Tripath, etc.) amplifier.

    Any plate amplifier with less than 300 watts RMS probably won’t be able to drive the woofers anywhere near Xmax – so distortion would be low simply because it’s only utilizing a % of the capability of the subwoofers.

    Cheers,
    -Tal


    Participant
    taloyd on · in reply to: TD18+ datas on AE page versus Data-Bass??? #11033

    Hello,

    Just offhand – I can’t imagine the Fs is 18 Hz. – that implies a diaphragm with more mass – which would lower the efficiency a lot. Since the efficiency is pretty high – it’s MUCH more likely that the Fs is the 29 Hz. stated by AE. And so the Vas is also more likely the AE figure. Just my $0.02.

    cheers,
    -Tal


    Participant
    taloyd on · in reply to: Pair of TD12H as subwoofers #10931

    You’re talking about using >$500 of speakers for <50 Hz. of bandwidth (Fs to 80 Hz.) when a variety of other speakers would be more practical. The biggest problem I see is that they'd require a larger box than a single dedicated woofer. Anything crossed over that low doesn't need to be the most fantastic driver in the world (ie: the AE drivers). To get an accurate system – the system design is key. Getting the crossover right, and picking the most practical, applicable drivers. Just my $0.02.

    cheers,
    -Tal


    Participant
    taloyd on · in reply to: td6m=sealed chamber or open back ? #10930

    What frequency range are you running the mids?

    John Kreskovsky has a quick writeup on how to calculate the maximum depth of the tunnel <<>> to avoid the resonance that sets the ceiling of the frequency range – it’s 2393/Fxo to give the maximum length in inches for the desired crossover frequency. But that’s for woofers not midranges – for the latter there’s much debate as to the baffle width setting the ceiling, in the context of constant directivity (CD) – the problem there is finding a tweeter robust enough to go low enough to match that very demanding requirement.

    Be a shame to cross the TD6 so low, and so perhaps a sealed chamber is the best idea (Earl Geddes would surely think so).

    Much has been said about the Bonded Logic UltraTouch recycled cotton insulation:

    http://www.diyaudio.com/forums/multi-way/190412-dampening-material-my-loudspeaker.html

    Some more:

    http://techtalk.parts-express.com/showthread.php?230227-Damping-Material-Testing

    cheers,
    -Tal


    Participant
    taloyd on · in reply to: FS QSC PLX2-1804 amplifier, perfect for stereo subwoofers #10682

    Price drop to $405 shipped!

    This is actually still available. I ended up purchasing a pair of NHT A1 monoblocks to replace it. They have less than one half the power (300 RMS @ 4 ohms vs. 800) but are convection cooled. Hope that’s enough power for 2 x IB15 in a dipole configuration per amp.

    Cheers,
    -Tal Allweil


    Participant
    taloyd on · in reply to: Do I need a brace or not #8232

    Cylindrical shapes do not need bracing – even a 1/8″ thick Sonotube will not resonate – as it is cylindrical. It’s definitely in the realm of overkill/diminishing-returns… that’s my $0.02.

    cheers,
    -tal


    Participant
    taloyd on · in reply to: My open baffle speakers using the AE OB12 #3605

    How do you feel about the SPL limitations using only a flat baffle?

    If you’re happy about the one OB12 per side, I guess I shouldn’t be worried, as I ordered the 4 pack of IB15s!

    I think the configuration I’m going to go with is using one IB15 in a 12″ U-frame (16″ Sonotube glued to the back) per side low-passed at 150 Hz to a full-range driver, and then having a pair in a Linkwitz W-frame (http://www.linkwitzlab.com/images/graphics/d_woof1.gif) as a “subwoofer” crossing <70 or so Hz…

    cheers,
    -tal


    Participant
    taloyd on · in reply to: Anyone out there into building fast cars? #1880

    Have a Volvo 740 turbo wagon (RED for extra speed!) as a race car. Just ran a 1:56 at Willow Springs International (http://www.willowspringsraceway.com/trackinformation/maps.asp). Wasn’t passed by Vipers in anything but the straights, and passed a supercharged Corvette Z06 on some of the faster turns. Admittedly, that’s all driver, as cars by themselves don’t get anywhere, but still… a 1990 Volvo wagon has no right to threaten a Viper…

    Motor is completely stock, although I’m throwing a bigger turbo and more aggressive camshaft on it before the next event (HATE passing people in the turns and getting passed in the straights)…

    Pretty fun car. RWD, have a locker in the back. Motor is a 2.3L 4 cylinder 8 valve… old-tech, but has a lot of torque… currently it’s only running around 160 wheel horsepower. After the new turbo, intercooler, and tune (going to be running Megasquirt, tuned by a wideband O2 sensor and yours truly) should be running around 250 – 300 wheel…

    Suspension is fairly simple: Koni yellow (single-adjustable) all around, some “sport” springs of unknown rate (likely 230/150 front/rear). Poly bushings strategically throughout the car. 25mm anti-sway bar in front, none in back. Adding roll resistance in the back just reduces traction, even with the additional rear weight of a wagon. Getting roll-center correction fabricated for the front, although there’s little bump-steer as is…

    Car is 2900 lbs. right now, should get it down to 2800 relatively soon. Here’s some pics of the event:
    http://www.flickr.com/photos/taloyd

    Was my first time out to the track. Ran on street tires, although nice ones (Hankook Z212). Could out-brake and out-turn just about everyone in my run group.

    cheers,
    -Tal

Viewing 12 posts - 1 through 12 (of 12 total)