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Eminence Lab15 - Sound Quality
Eminence Lab15 - Sound Quality
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Old 15th February 2019, 12:37 AM   #1
mortron is offline mortron  Canada
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Default Eminence Lab15 - Sound Quality

Hi there. I'm curious about the sound quality of Eminence Lab15 and the other Lab subs. Are they good music woofers? I'm not overly experienced with high end drivers in the sub frequency. I would be crossing under 100hz, likely closer to 50hz if possible to a large pro woofer.

It looks good on paper but I have had mixed results with some Eminence drivers. Probably too high of expectations combined with inexperience so looking for opinions from others who have more experience with this driver or anything to offer.

Thanks
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Old 15th February 2019, 01:29 AM   #2
academia50 is offline academia50  Argentina
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Here you have some information

Eminence LAB 15 + Hypex DS8.0 sealed box
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Old 15th February 2019, 05:22 AM   #3
tonskulus is offline tonskulus  Finland
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Eminence lab 12/15 series is good. They are not xmax monsters for producing the lowest notes with big authority but at least good down to 25-30Hz.

Sound quality wise, it's more to do with room acoustics and enclosure design etc.. lab does the job just fine as it is. Depending also whats your taste
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Old 15th February 2019, 09:15 AM   #4
mortron is offline mortron  Canada
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I am considering them, but find shopping for bass drivers is tricky.

I like sealed in theory more for music than ported, but the bass goes lower ported. I can't see a sealed Lab15 working without DSP, as is the case with many sealed subs IME.

I listen to everything, but my goal is to get a nice low distortion speaker built that is capable of sounding big when it needs to, and still play nice when I'm just taking it easy. Fast isn't a word I want to use, but attack comes to mind too. Something I think of when it comes to big light mid pro cones. Good attack. I don't like the idea of a super heavy cone, but seems a necessary evil for a good sub, ya?

Last edited by mortron; 15th February 2019 at 09:18 AM.
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Old 15th February 2019, 09:49 AM   #5
tonskulus is offline tonskulus  Finland
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good attack (kick, mid bass) and lots of sub when needed, almost impossible from single enclosure / driver. Well, it depends how much you really need max spl etc..

Yes, it is possible to get lots of spl from sealed subs down to lowest notes but it just requires lots of power, cone area and xmax.
Think about that you have a sealed sub which has -10dB point at 30Hz compared to lets say 45Hz. To get flat response, you need to boost 30Hz +10dB with eq/dsp. There we have it, nice flat response down to 30Hz. But power requirements for 30Hz is now almost ten times compared to 45Hz! as example, 100watt for 45Hz, 1000watt for 30Hz. Not to mention the maximum excursion needed to keep up those low notes..
Still not enough..flat to 20Hz? Oh my.. driver will be killed!
Smaller the enclosure, more power required to flatten the response down to what ever you need. That's why I prefer reflex/horn designs when ever big SPL levels is necessary.

How about two-way bass? One heavier cone for sub and another lighter cone/high efficiency driver for midbass/kick to give some chest pounding kick.

Last edited by tonskulus; 15th February 2019 at 10:00 AM.
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Old 15th February 2019, 07:54 PM   #6
Zwiller is offline Zwiller  United States
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LAB15 is good and by that I mean that the specs are legit. Good points made already. I have a LAB15 in Art Welter's Keystone and it is very impressive. I think you will need to spend a lot more for a better driver. As always, depends on application.
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Old 15th February 2019, 08:53 PM   #7
mortron is offline mortron  Canada
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I am planning on using a 15" midbass like JBL 222* variant with a horn up top. I'm thinking that's where lots of the "speed and punch" will be coming from. Obviously using a mid like that will require a little low end reinforcement even tho I'm thinking bass reflex on the JBL. I've considered 18" drivers as well, but am contemplating the Lab15 as I can get a good price on em.

Getting flat to 20hz isn't priority #1... Room gain and such will hopefully factor in to help things down there some.

As mentioned, I've owned some Eminence that were a bit... Meh. I dunno how to describe but they left something wanting and I wasn't sure if the Lab15 would be more of that or if it would do what I hope. Naturally I'm going to be active crossing the Lab15 to the mains but am still just kind of brainstorming at this point.

It sounds like the Lab15 is flexible enough that beyond music it would have other good applications should the results be less than favourable. Not that I need to hoard anymore drivers... But who am I kidding? Hah

Last edited by mortron; 15th February 2019 at 08:57 PM.
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Old 15th February 2019, 09:07 PM   #8
phivates is offline phivates  United States
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You don't have to have dsp to eq the bottom end. That's just the current best ever for all time. And flat to 20 Hz will actually be flatulent in an ordinary room.
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Old 16th February 2019, 03:04 PM   #9
mortron is offline mortron  Canada
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I am beginning to wonder if I am better off pursuing a driver like the JBL 2245 for hifi use. There is also the added benefit of efficiency and ability to play higher up.
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Old 17th February 2019, 09:15 AM   #10
Crashpc is offline Crashpc  Czech Republic
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Labs ara awesome drivers. But in my country, they are bloody expensive. You definitely can find some beast drivers with more motor force and displacement volume than these. And If one is about to throw some audio money to the bin (meaning you just want it, but there is no way it pays back), then I would not pick these for their value. IŽd put some more peanuts and bought mightier drivers. My choice would be some 18" RCF or B&C in that price. Even B&C 15BG100 is cheaper driver. Due to the /usually/ strong motors, you can close many of these drivers in 120-130l enclosure, and dig 30Hz with it no problem...
Second 21DS115 arrived to my house last week for that reason.

If you really wanted to go more hi-fi, I would look more into Peerless and Dayton.
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