New Mach 5 Audio IXL info - Page 21

Where should I place the meter prongs? I'm using speakon connectors, so should I just go back a little to the actual wire and test the speaker wire before the connectors? Positive to positive and negative to negative?

The amp does not have regular speaker terminals only speakons.

I have done a test similar without a meter. I just tried to clip the other channels and the one channel and was able to do so each time at the same AVR db setting both ways.

I'm curious about bridging it at both 8ohms and 4ohms.

If bridging it at 8ohms will give me a little more head room for the vcl then that would solve the problem if the amp is just outputting its max voltage for the 150v setting (which is the max setting). Is that correct? Although I dont understand how bridging it will change that from 150v to 300v squared devided by 8. I would think that it would make it 150v x2 which would still equal out to 300v but still devided into two subs. Thats where bosso confused me. I'm ignorant to how that works for sure. But if thats the case and how it works then

150x2, 300vsquared devided by 8ohms would bring the output up from aprox 2000 watts to aprox 5500 watts per driver which would be fine as long as I found their limits.
Edited by audiovideoholic - 6/16/12 at 12:52am

take the cable and there should be 2 wires strip a small section off and test between them dont short anything one probe to each wire and the wire different pair of wire nor the probes should touch each other.

Speakons have screw terminals inside, so undo the bushing and slide the chuck back and measure onto the terminals in the Speakon.
Crown have a nifty little wiring guide that will make the visuals easier.

Make sure the probes don't bridge across terminals as this could short the amp (one probe touching 2 terminals at the same time). Tones are best for this test as rapidly changing source material levels will be too fast for a DVM to read as they usually take some time to respond and display. They will not track in real time in any useful way.

Saw an update on the IST site about the UXL-18 availability but there was something else mentioned that caught my eye ...

Interesting. I wonder what changes will be made.

I hope they will still be good candidates for Riccis Gjalerhorn.

Lol, exactly.

Still trying to decide between four UXLs and four FTWs. Good to see the UXLs may be shipping again soon

No, not really a cost factor. The difference between the two wouldn't break the bank. For me it's box size limitations. I'd have no problems with the FTWs up front, but I don't have room for 6 - 7 cu. ft. for the back pair. Max I could do for the rear boxes is ~ 5.8 cu. ft (not counting driver volume), and that's pushing it.

I meant the dimensions for the proposed 5.8 cu. ft. boxes may be pushing the max allowable for at least one location. It is nice to hear that as low as 5 cu. ft. could still work well. Something more to ponder.

Whatever 4 I go with, they'll likely be powered with a 10000Q clone. The UXLs are probably more than enough for my room, but I don't want any regrets or what-ifs later on

Would either the uxl or ftw run well in a sealed 8 cf box powered by an ep4000?

If so what could I expect for a result

Have amp and wood so far

I had that thought as well, but I'm a little concerned about integrating different drivers. I was under the impression that four identical drivers would be best. Not as big of an issue as I think?
Edited by VEXXD - 7/4/12 at 8:38pm

N8DOGG,

With 2x FTW21 driven with an EP4000, what box size would you recommend?
Problem is they would be connected to the EP4000 @ 8ohms though.

thanks

Only 650w per driver? Hmm...you could go up to 20cuft per driver if that's the case. I would highly suggest against that and plan to use more power eventually.

Agreed. Aim for comfortable power input within the 1-2kw range with these guys.

Ya, thanks guys,

I'll go with 6-7 cube and will upgrade my amp later on.
I have 2 EP4000 right now but the other one will be used to drive the 4x MFW-15's that are going in the front.
I'll have the other EP4000 driving the FTW21's that are going to be placed in the back room.

Thanks guys...I appreciate the feedback.

Would someone be so kind as to give me a couple dimensions for the FTW-21?

1) Center-to-center spacing of the mounting holes (precise, if possible)
2) Depth of flange for flush mounting?
3) Mounting hole diameter - curious to know what size bolt would fit.

Thank you.

I am interested in two IXL-18 drivers & planning to use them in 2600sqft room in a sealed configuration. Can somebody help me with box dimensions for IXL-18 is sealed configuration? I am looking for decent extension & output down to 20Hz.
Thanks,

Anyone have the original t/s parameters for the uxl 18? Trying to see what the differences are in comparison with the new specs listed.

Ricci may have them on his website? I'm not sure if I saved the file anywhere.

When talking with Mark he thought the performance of these would be near identical.

Whats the word on the LLE-18?