Hertz, JL, ID sub testing

[Jake Papa 10+ year member]

Subs tested...

JL W6v2 12"

JL W3v3 12"

Hertz HX300d 12"

Image Dynamics IDQ 12"

.. All pairs and dual 4 ohm (W3v3s are dual 2ohm)

Amps

2 - Zapco DC REF 500.1s (500x1@2ohm)

Headunit

Alpine double din its the W505 i think.. ill have to ask

Mic

Audiocontrol SA 3055. We couldnt get ahold of a TL... working on it tho. The A/C is still a very accurate mic for the testing.. just note the TL scores might be different.

Electrical

200amp alt (not sure what brand) 1 kinetik HC 1400 (hood) and 2 kinetik HC800s (back).

Vehicle

2006 or 2007 Ford Explorer Eddie Bauer edition

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To start things off this is all in my friends car and all of his equipment.. All I did was help him with the boxes and running the test. He was running the JL w6s the past few months and liked the sq but wanted a little more power.

The W6v2's box is 3.2cuft tuned to 33hz with 2 4" aero ports. Everything is firing back to the SUVs hatch.

Hertz box 2.4cuft tuned to 36hz with 2 3" aeros. The subs are shooting up the ports back. (TINY box for 2 12s i might add...)

Test 1 - SPL on music

All scores are on music with random rap CDs.. whatever hit the highest score we kept. Not all of the subs hit the same on each song.

Direct drop in scores with the W6 box...

JL W6v2 - 142.3dB

JL W3v3 - 139.8dB (wired at 4ohm not 2ohm)

Hertz HX300d4 - 144.1dB

IDQ 12 - 141.3dB

Direct drop in scores with the Hertz box...

JL W6v2 - 141.5dB

JL W3v2 139.1dB (still wired at 4ohm)

Hertz HX300d4 - 143.6dB

IDQ 12 - 140.9dB

Test 2- Peak SPL with 30-60hz sweep 1 second intervals.

Direct drop in scores with the W6 box...

JL W6v2 - 143.9dB

JL W3v3 - 141.4dB (4ohm)

Hertz HX300d4 - 145.5dB

IDQ 12 - 142.3dB

Direct drop in scores with the Hertz box...

JL W6v2 - 142.6dB

JL W3v2 140.0dB (still wired at 4ohm)

Hertz HX300d4 - 144.9dB

IDQ 12 - 141.9dB

The scores on the tones seemed a little off to me on the mic. Compared to the music notes I would expect them to be higher but then again this was after 15-20 min of testing already. We NEED to get a TL so we can get more accurate numbers.

Test 3- SQ rankings on Roses by Outkast

We did all of the SQ stuff without knowing which sub was being played... had a 3rd party hook them up and let us listen. Mark is in the drivers seat, im in the passenger.

JL box (me)

1. Hertz

2. IDQ

3. JL w6

4. JL w3

JL box (mark)

1. Hertz

2. JL W6

3. IDQ

4. JL w3

Hertz box (me)

1. Hertz

2. IDQ

3. JL w3

4. JL w6

Hertz (mark)

1. Hertz

2. IDQ

3. JL W6

4. JLw3

Test 4 SQ on Con Te Partiro - Andrea Bocelli

JL box (me)

1. Hertz

2. W6

3. IDQ

4. JL w3

JL box (mark)

1. Hertz

2. JL W6

3. IDQ

4. JL w3

Hertz box (me)

1. Hertz

2. IDQ

3. JL w6

4. JL w3

Hertz Box(mark)

1. Hertz

2. JL W6

2. IDQ

(tied)

4. JLw3

Test 5 - SQ Gravedigger - dave matthew's band

Jl box (me)

1. Hertz

2. IJL W6

3. IDQ

4. JL w3

JL box (mark

1. W6

1. hertz

(tie)

3. IDQ

4. JL w3

hertz box (me)

1. Hertz

2. IDQ

3. JL w6

4. JL w3

hertz (mark)

1. Hertz

2. IDQ

3. JL W6

4. JLw3

Final words on SQ

When it comes to the Hertz box... not even remotely a close battle. The HX300 dominated all the others it wasnt even funny.

JL box was much closer with the Hertz, W6v2 and IDQ but there was still a clear winner in each.

Final notes...

The test took like 4 f-ing hours, we swapped subs out so many times I felt like shooting myself in the end.

Mark took some pics but he has them, i don't. Ill post um when i get them.

Feel free to ask questions... sorry its so long.

Click to read more...

 

[strong*I*bumpin 10+ year member]

what version IDQ?

 

[Jake Papa 10+ year member]

Sorry about that, IDQ V3 dual 4.

I personally like the IDQs, I wish we had a box designed for them.

Theres always next time.

 

[microhaxo 10+ year member]

nice info, thanks. Would have been sweet to have some video!

 

[tinmanchris217 10+ year member]

Nice info. As objective as you can do these things.

Things I noticed, all the subs were louder in the bigger box with bigger ports. This makes sense for efficiency, I'm just surprised that the JL's responded more strongly to the added breathing room.

Oh, and that the W3 just got TKO'd... good to know that it can't compete with the big boys. Still a good offering for entry level, though.

 

[FJF 10+ year member]

Ummm...how did the subs sound? Any relevant comments? What sonic determinates drove the numerical ranks? //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

 

[Jake Papa 10+ year member]

The JL W3s didnt really have a fair fight in the SPL because they were getting a little more than half the power.

The numerical ranks are honestly just accuracy, overall tone, and a constant flat sound. Mark and myself had a piece of paper and just wrote down notes and did a 1/10 on how we thought they sounded. After hearing all four subs we just ranked them 1,2,3,4. Not the best way to do it, but for how much time we had and because there was just 2 of us for most of the time, it worked out ok.

I forgot to mention, his front stage is Dynaudio 240MK2 with a Zapco ref (not DC like the others) 750x2.

 

[spiroh 10+ year member]

Thanks for taking the time to do this.

 

[Horsemanwill 10+ year member]

i think the test needs to be redone with a proper box built for the IDQs

 

[okiedokie 10+ year member]

prefab boxes ****

but where are those pics??

 

[Jake Papa 10+ year member]

Horseman I wish we had one, I personally love the IDQs in a small sealed box. Very very good speakers. Mark is thinking about doing 3 12s of the Hertz subs in a sealed box, instead of running ported. If we do a sealed box ill make sure to toss the IDQs in and give a listen/review.

No one mentioned prefab boxes...

Still waiting on the pics, honestly not sure when ill get them. Mark does nothing with online forums so whenever he puts them on his comp ill have 'um.