Eminence Lab12

smallangryboy · 16th March 2005, 02:22 PM

I've heard very good things about this driver the EMINENCE LAB12 and speaking to BK electronics in the UK, they seem to think it would work in a 50 litre sealed box, similar to the Adire Shiva.

I wondered what plate amp I could use to partner up with it ? Parts Express sell the driver, and also some switchable voltage plate amps at about 250w and I wondered if this would be enough to drive it, seeing as though I could order both at the same time and shave a little off shipping charges.

Dave Jones · 16th March 2005, 06:40 PM

Post the T/S parameters.

smallangryboy · 16th March 2005, 06:52 PM

Resonant Frequency (fs) 22Hz
Impedance (Re) 4.29Ohms
Coil Inductance (Le) 1.48mH
Electromagnetic Q (Qes) 0.39
Mechanical Q (Qms) 13.32
Total Q (Qts) 0.38
Compliance Equivalent Volume (Vas) 125.22litres
Mechanical Compliance of Suspension (Cms) 0.35mm/N
BL Product (BL) 15.0 T-M
Voice Coil Overhang (Xmax) 13mm
Surface Area of Cone (Sd) 506.7cm2

Dave Jones · 16th March 2005, 07:10 PM

x

smallangryboy · 16th March 2005, 07:45 PM

Dave

Seems as though this would benefit from the same 4dB boost at 20 Hz that you applied when modelling the Dayton Titanic's response.

Dave Jones · 16th March 2005, 07:54 PM

Quote:

Originally posted by smallangryboy
Dave

Seems as though this would benefit from the same 4dB boost at 20 Hz that you applied when modelling the Dayton Titanic's response.

Yes, but I think it kind of wants a bigger box. Here it is in the 50Liter box with 4dB boost at 20Hz:

smallangryboy · 16th March 2005, 07:58 PM

You don't hang around ! Just compared it to the one you did with the Dayton and the Titanic seems to just edge ahead.

mike.e · 17th March 2005, 03:57 AM

EQing sealed box + high SPl requirement =

use ported. When comparing the subwoofers keep SOMETHING equal eg : box Vb required for maximally flat alignment for all,or equal volume for all to compare efficiency and cutoff....

Use winisd pro + patch to see excursion soar due to EQ applied to high excursion sealed box area below Fcb

Dave Jones · 17th March 2005, 07:54 PM

Quote:

Originally posted by mike.e
EQing sealed box + high SPl requirement =

use ported. When comparing the subwoofers keep SOMETHING equal eg : box Vb required for maximally flat alignment for all,or equal volume for all to compare efficiency and cutoff....

Use winisd pro + patch to see excursion soar due to EQ applied to high excursion sealed box area below Fcb

He didn't say he required high SPL.

mike.e · 17th March 2005, 09:28 PM

True he smallangryboy didnt state what SPL he requires.

16th March 2005, 02:22 PM	#1
smallangryboy diyAudio Member Join Date: Dec 2004 Location: Oxfordshire	Eminence Lab12 I've heard very good things about this driver the EMINENCE LAB12 and speaking to BK electronics in the UK, they seem to think it would work in a 50 litre sealed box, similar to the Adire Shiva. I wondered what plate amp I could use to partner up with it ? Parts Express sell the driver, and also some switchable voltage plate amps at about 250w and I wondered if this would be enough to drive it, seeing as though I could order both at the same time and shave a little off shipping charges.

16th March 2005, 06:40 PM	#2
Dave Jones diyAudio Member Join Date: Jul 2003 Location: Silicon Valley	Post the T/S parameters. __________________ Davy Jones

16th March 2005, 06:52 PM	#3
smallangryboy diyAudio Member Join Date: Dec 2004 Location: Oxfordshire	Thiele-Small Parameters Resonant Frequency (fs) 22Hz Impedance (Re) 4.29Ohms Coil Inductance (Le) 1.48mH Electromagnetic Q (Qes) 0.39 Mechanical Q (Qms) 13.32 Total Q (Qts) 0.38 Compliance Equivalent Volume (Vas) 125.22litres Mechanical Compliance of Suspension (Cms) 0.35mm/N BL Product (BL) 15.0 T-M Voice Coil Overhang (Xmax) 13mm Surface Area of Cone (Sd) 506.7cm2

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16th March 2005, 07:45 PM	#5
smallangryboy diyAudio Member Join Date: Dec 2004 Location: Oxfordshire	Dave Seems as though this would benefit from the same 4dB boost at 20 Hz that you applied when modelling the Dayton Titanic's response.

16th March 2005, 07:58 PM	#7
smallangryboy diyAudio Member Join Date: Dec 2004 Location: Oxfordshire	You don't hang around ! Just compared it to the one you did with the Dayton and the Titanic seems to just edge ahead.

17th March 2005, 03:57 AM	#8
mike.e diyAudio Member Join Date: Sep 2004 Location: NZ	EQing sealed box + high SPl requirement = use ported. When comparing the subwoofers keep SOMETHING equal eg : box Vb required for maximally flat alignment for all,or equal volume for all to compare efficiency and cutoff.... Use winisd pro + patch to see excursion soar due to EQ applied to high excursion sealed box area below Fcb

17th March 2005, 09:28 PM	#10
mike.e diyAudio Member Join Date: Sep 2004 Location: NZ	True he smallangryboy didnt state what SPL he requires.

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