Hello good people.. FTH-12 plans please!?

(going to post this in another section as well as to build up my 10 posts so I can post build pics)

Hi guys.. Having some trouble finding the answers to a few questions....

First I am torn between building Tony Wilkes FTH-12 and the THAM-12 for a few reasons that I am trying to clear up.

1ST..

I am making sure that this will be the proper build for my needs.. I DJ and I want to be able to travel with these subs in my car so I

would like to stay with one of the two 12" enclosure builds. I also play guitar in a band and we tune low. To a low C on some songs

and others drop D, so my concerns are that if I wanted to mic up will these be capable of hitting the lows from the bass guitar.>?

Secondly..

The reccomended driver for FTH 12 IS THE "FaitalPRO 12HP1020 12" Neodymium Professional Woofer 8 Ohm" and I really don't

want to shell out $349 dollars a piece on these right now. Tony origionally started the build with the "Celestion FTR12-4080HDX

12" Professional Cast Frame Speaker 1000W" before a falling out with Celestion, and then changed the build to adjust accordingly

for the FaitalPro. (From what I have gathered he has changed the size a bit to compensate as well for this driver)

Now I am very curious..... Everyone is saying that both the FTH 12 and the THAM 12 are very similar but the FTH 12 from what I

have read can hit lower frequencies... This is what is drawing me to this build over the THAM 12. Also I want to help keep Tony's

memory alive as I am sure everyone will be asking about these little subs, and I would like to pay it back to him as well as Mr BEE for

his help..

Also curious about this... Seeing as there are many trials with different speakers for the THAM 12, and only 2 that I have found for

the FTH-12..

Now... Being that they are so similar will the THAM 12 speaker reccomendations work equally as well in the FTH12?

I am unsure how precise these speakers have to be to fully utilize these enclousures so forgive me if I seem like I am over

complicating myself here... I just want to do this once and do it right.

This is what is mainly holding me back on the build right now..

Some of the options for suggested woofers are just not available in the states..

Heres what I have to work with here ...

Tony's Origional build speaker Celestion FTR12-4080HDX 12" Professional Cast Frame Speaker 1000W

(THIS is available for $199) @ parts express

Product Specifications

Nominal Diameter12"Power Handling (RMS)1,000 Watts

Power Handling (max)2000 WattsImpedance8 ohms

Frequency Response47 to 3,000 HzSensitivity93 dB 2.83V/1m

Voice Coil Diameter4"Magnet Weight110 oz.

Thiele-Small Parameters

Resonant Frequency (Fs)61 HzDC Resistance (Re)6.05 ohms

Voice Coil Inductance (Le)1.92 mHMechanical Q (Qms)2.23

Electromagnetic Q (Qes)0.45Total Q (Qts)0.37

Compliance Equivalent Volume (Vas)0.88 ft.³Mechanical Compliance of Suspension (Cms)0.06 mm/N

BL Product (BL)23.81 TmDiaphragm Mass Inc. Airload (Mms)3.8g

Moving Mass Of Diaphragm (Mmd)3.59Maximum Linear Excursion (Xmax)8 mm

...............................................................................................................................................................................

His last build was created for the "FaitalPRO 12HP1020 12" Neodymium Professional Woofer 8 Ohm"

($349 available @ parts express)

Product Specifications

Nominal Diameter12"Power Handling (RMS)700 Watts

Power Handling (max)1400 WattsImpedance8 ohms

Frequency Response55 to 3,150 HzSensitivity97 dB 1W/1m

Voice Coil Diameter4"

Thiele-Small Parameters

Resonant Frequency (Fs)55 HzDC Resistance (Re)5.5 ohms

Voice Coil Inductance (Le)1.1 mHMechanical Q (Qms)9.4

Electromagnetic Q (Qes)0.28Total Q (Qts)0.27

Compliance Equivalent Volume (Vas)1.19 ft.³Mechanical Compliance of Suspension (Cms)0.09 mm/N

BL Product (BL)24.3 TmDiaphragm Mass Inc. Airload (Mms)86g

Moving Mass Of Diaphragm (Mmd)79.3Maximum Linear Excursion (Xmax)9 mm

Surface Area of Cone (Sd)494 cm²

....................................................................................................................................................................

Here are the speakers that are readily available to me in the states that are suggested for the THAM 12 plans..

I will be powering 2 of these with a Crown CE4000 power amp

The Crown CE4000 Power Amp delivers 1,400W per channel @ 2 ohms, 1,200W @ 4 ohms, and 600W @ 8 ohms, 2,800W @ 4 ohms

bridgd mono, 2,400W @ 8 ohms.

So I would like to utilize this amps power as well as possible, as well as not fry it...

Would it be best to run dual 4ohm speakers @ a 2ohm load?

I am reading that this particular amp runs very cool at a stable 2ohm load.

THAM 12 SPEAKER RECCOMENDATIONS.....

.................................................................................................................................................................................

"Eminence Kappalite 3012LF-4 High Power Neo 12" Subwoofer 4 Ohm"

($184.99 parts express)

Product Specifications

Nominal Diameter12"

Power Handling (RMS)550 Watts

Power Handling (max)1100 WattsImpedance4 ohms

Frequency Response41 to 2,000 HzSensitivity92.9 dB 1W/1m

Voice Coil Diameter3"

Thiele-Small Parameters

Resonant Frequency (Fs)36 HzDC Resistance (Re)3.89 ohms

Voice Coil Inductance (Le)0.66 mHMechanical Q (Qms)8.38

Electromagnetic Q (Qes)0.32Total Q (Qts)0.31

Compliance Equivalent Volume (Vas)3.79 ft.³Mechanical Compliance of Suspension (Cms)0.26 mm/N

BL Product (BL)14.27 TmDiaphragm Mass Inc. Airload (Mms)72g

Maximum Linear Excursion (Xmax)9.1 mmSurface Area of Cone (Sd)545.4 cm²

.................................................................................................................................................................................

"Eminence Definimax 4012ULF-8 12" Cast Frame Driver"

(219.99 available @ parts express)

Product Specifications

Nominal Diameter12"Power Handling (RMS)1,200 Watts

Power Handling (max)2400 WattsImpedance8 ohms

Frequency Response37 to 200 HzSensitivity90.7 dB 1W/1m

Voice Coil Diameter4"Magnet Weight109 oz.

Thiele-Small Parameters

Resonant Frequency (Fs)40 HzDC Resistance (Re)6.2 ohms

Voice Coil Inductance (Le)4.32 mHMechanical Q (Qms)12.13

Electromagnetic Q (Qes)0.32Total Q (Qts)0.31

Compliance Equivalent Volume (Vas)1.46 ft.³Mechanical Compliance of Suspension (Cms)0.1 mm/N

BL Product (BL)27.38 TmDiaphragm Mass Inc. Airload (Mms)153g

Maximum Linear Excursion (Xmax)6.7 mm

..................................................................................................................................................................................

"B&C 12PS100 12" Woofer"

($211.61 available @ parts express)

Product Specifications

Nominal Diameter12"Power Handling (RMS)700 Watts

Power Handling (max)1400 WattsImpedance8 ohms

Frequency Response45 to 1,000 HzSensitivity93 dB 1W/1m

Voice Coil Diameter4"

Thiele-Small Parameters

Resonant Frequency (Fs)44 HzDC Resistance (Re)5.3 ohms

Voice Coil Inductance (Le)2 mHMechanical Q (Qms)3.9

Electromagnetic Q (Qes)0.29Total Q (Qts)0.27

Compliance Equivalent Volume (Vas)1.6 ft.³BL Product (BL)22.5 Tm

Diaphragm Mass Inc. Airload (Mms)106gMaximum Linear Excursion (Xmax)8 mm

Surface Area of Cone (Sd)531 cm²

Materials of Construction

Cone MaterialPaperSurround MaterialCloth

Voice Coil Wire MaterialCopperVoice Coil FormerFiberglass

Magnet MaterialFerrite

...................................................................................................................................................................................

"B&C 12NW76 12" Neodymium Woofer"

($238.25 available @ parts express)

Product Specifications

Nominal Diameter12"Power Handling (RMS)500 Watts

Power Handling (max)1000 WattsImpedance8 ohms

Frequency Response40 to 2,000 HzSensitivity99 dB 1W/1m

Voice Coil Diameter3"

Thiele-Small Parameters

Resonant Frequency (Fs)40 HzDC Resistance (Re)5.3 ohms

Voice Coil Inductance (Le)1.25 mHMechanical Q (Qms)3.7

Electromagnetic Q (Qes)0.17Total Q (Qts)0.16

Compliance Equivalent Volume (Vas)2.7 ft.³BL Product (BL)25.5 Tm

Diaphragm Mass Inc. Airload (Mms)77gMaximum Linear Excursion (Xmax)8 mm

Surface Area of Cone (Sd)522 cm²

..........................................................................................................................................................................

B&C 12BG100 12" Neodymium Subwoofer"

(299.90 available @ parts express)

Product Specifications

Nominal Diameter12"Power Handling (RMS)1,000 Watts

Power Handling (max)2000 WattsImpedance8 ohms

Frequency Response40 to 1,000 HzSensitivity93 dB 1W/1m

Voice Coil Diameter4"

Thiele-Small Parameters

Resonant Frequency (Fs)39 HzDC Resistance (Re)5.1 ohms

Voice Coil Inductance (Le)1.6 mHMechanical Q (Qms)6.8

Electromagnetic Q (Qes)0.35Total Q (Qts)0.33

Compliance Equivalent Volume (Vas)1.45 ft.³BL Product (BL)23 Tm

Diaphragm Mass Inc. Airload (Mms)152gMaximum Linear Excursion (Xmax)10.5 mm

Surface Area of Cone (Sd)522 cm²

....................................................................................................................................................................

FaitalPRO 12FH500 12" Neodymium Professional Woofer 4 Ohm"

($262 available @ parts express)

Product Specifications

Nominal Diameter12"Power Handling (RMS)500 Watts

Power Handling (max)1000 WattsImpedance4 ohms

Frequency Response45 to 4,000 HzSensitivity97 dB 1W/1m

Voice Coil Diameter3"

Thiele-Small Parameters

Resonant Frequency (Fs)45 HzDC Resistance (Re)3.3 ohms

Voice Coil Inductance (Le)0.63 mHMechanical Q (Qms)9.09

Electromagnetic Q (Qes)0.23Total Q (Qts)0.23

Compliance Equivalent Volume (Vas)2.44 ft.³Mechanical Compliance of Suspension (Cms)0.2 mm/N

BL Product (BL)15.5 TmDiaphragm Mass Inc. Airload (Mms)60.9g

Moving Mass Of Diaphragm (Mmd)54.7Maximum Linear Excursion (Xmax)7.25 mm

Surface Area of Cone (Sd)487 cm²

...........................................................................................................................................................

FaitalPRO 12FH510 12" Professional Woofer 8 Ohm"

($220 availavle @ parts express)

Product Specifications

Nominal Diameter12"Power Handling (RMS)500 Watts

Power Handling (max)1000 WattsImpedance8 ohms

Frequency Response45 to 3,150 HzSensitivity98 dB 1W/1m

Voice Coil Diameter3"

Thiele-Small Parameters

Resonant Frequency (Fs)45 HzDC Resistance (Re)5.1 ohms

Voice Coil Inductance (Le)0.9 mHMechanical Q (Qms)10.9

Electromagnetic Q (Qes)0.25Total Q (Qts)0.24

Compliance Equivalent Volume (Vas)2.46 ft.³Mechanical Compliance of Suspension (Cms)0.2 mm/N

BL Product (BL)18.9 TmDiaphragm Mass Inc. Airload (Mms)61g

Moving Mass Of Diaphragm (Mmd)54.9Maximum Linear Excursion (Xmax)7.5 mm

Surface Area of Cone (Sd)489 cm²

.........................................................................................................................................................................

RCF LF12G301 12" Woofer Speaker"

($258 available a@ parts express)

Product Specifications

Nominal Diameter12"Power Handling (RMS)450 Watts

Power Handling (max)900 WattsImpedance8 ohms

Frequency Response40 to 2,000 HzSensitivity97 dB 2.83V/1m

Voice Coil Diameter3"

Thiele-Small Parameters

Resonant Frequency (Fs)43 HzDC Resistance (Re)5.8 ohms

Voice Coil Inductance (Le)2 mHMechanical Q (Qms)4.6

Electromagnetic Q (Qes)0.23Total Q (Qts)0.22

Compliance Equivalent Volume (Vas)3.43 ft.³BL Product (BL)19 Tm

Diaphragm Mass Inc. Airload (Mms)56gMaximum Linear Excursion (Xmax)6.8 mm

Surface Area of Cone (Sd)530 cm²

Materials of Construction

Cone MaterialPaperSurround MaterialCloth

Voice Coil Wire MaterialCopperVoice Coil FormerFiberglass

Magnet MaterialFerrite

......................................................................................................................................................................

Please let me know what you guys think on any of these questions, and I am open to your suggestions.

Thank you in advance and have a great day/morning/evening.........Where every you are at... ;)

Sorry for swamping you guys with the questions... Trying my best to learn this here.. much more involved with these builds then I thought there would be....

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
bee Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 14 June 2011 Location: Middlesex Status: Offline Points: 4549	Post Options Post Reply Quote bee Report Post Thanks(0) Quote Reply Posted: 17 October 2016 at 7:51pm
	@demonKnight pm me on facebook (seach bar) elements audio or email me @ ben dot wells at elements-audio dot com.... ill email over the plan to you... thank you for the donation.
	https://www.elements-audio.com

bee Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 14 June 2011 Location: Middlesex Status: Offline Points: 4549	Post Options Post Reply Quote bee Report Post Thanks(0) Quote Reply Posted: 18 October 2016 at 10:19am
	plan sent, thank you for the donation. Please feel free to post pics of your build, Forum members love a bit of speaker porn...
	https://www.elements-audio.com

DemonKnight Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 16 October 2016 Location: Chicago IL Status: Offline Points: 41	Post Options Post Reply Quote DemonKnight Report Post Thanks(0) Quote Reply Posted: 19 October 2016 at 9:26pm
	Sorry for the late response here, but I have been collaborating with Mr. Bee through email a bit as I had a few more questions for the build, and I have been swamped with work. Thank you very much Mr Bee, and thank you to those of you who have taken the time to reply and share your knowledge as well! Much appreciated! (Mr APW) I would love to see a pic or video of your last event with your 4 THAMS it does sound very impressive indeed! When I came across this website in search of building my own enclosures I had just thought that you guys were fellow audio enthusiasts like myself who share a passion for great sound, and music.. I had no idea the extent of knowledge, and experience some of you have when it comes to understanding all that goes into building an enclosure to a speakers specifications.. It is quite an impressive challenge it seems from what I have been reading. Through Mr Bee, and I's collaboration I did have the opportunity to check out his website ( Elements Audio ) and Facebook page. His work, and craftsmanship is truly second to none. You can definitely see that he has a deep passion for what he does and it reflects in his work, and builds.. It means a lot when people like yourselves, and Mr Bee can take time from your busy schedules and go out of your way to help a complete stranger. For that I salute you! I am patiently awaiting a few questions on Tony's FTH-12 plans from Mr. Bee, and in the process of getting my materials together, as certain things are not readily available in the states, (certain drivers, PLY wood sizes, and materials ect).. that I may need to find equivalent substitutions for. I know this all plays an important role in the outcome of the build, so I want to be certain that all is in order before I begin. I will be glad to share my build pics and progress, and I am sure I will have more questions as I go.. I do hope my pictures are "speaker porn worthy" Hah! (love the reference BTW) Thank you all again, and I look forward to any and all feedback, and responses... Have a great day...

DemonKnight Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 16 October 2016 Location: Chicago IL Status: Offline Points: 41	Post Options Post Reply Quote DemonKnight Report Post Thanks(0) Quote Reply Posted: 21 October 2016 at 2:31am
	(going to post this in another section as well as to build up my 10 posts so I can post build pics) Hi guys.. Having some trouble finding the answers to a few questions.... First I am torn between building Tony Wilkes FTH-12 and the THAM-12 for a few reasons that I am trying to clear up. 1ST.. I am making sure that this will be the proper build for my needs.. I DJ and I want to be able to travel with these subs in my car so I would like to stay with one of the two 12" enclosure builds. I also play guitar in a band and we tune low. To a low C on some songs and others drop D, so my concerns are that if I wanted to mic up will these be capable of hitting the lows from the bass guitar.>? Secondly.. The reccomended driver for FTH 12 IS THE "FaitalPRO 12HP1020 12" Neodymium Professional Woofer 8 Ohm" and I really don't want to shell out $349 dollars a piece on these right now. Tony origionally started the build with the "Celestion FTR12-4080HDX 12" Professional Cast Frame Speaker 1000W" before a falling out with Celestion, and then changed the build to adjust accordingly for the FaitalPro. (From what I have gathered he has changed the size a bit to compensate as well for this driver) Now I am very curious..... Everyone is saying that both the FTH 12 and the THAM 12 are very similar but the FTH 12 from what I have read can hit lower frequencies... This is what is drawing me to this build over the THAM 12. Also I want to help keep Tony's memory alive as I am sure everyone will be asking about these little subs, and I would like to pay it back to him as well as Mr BEE for his help.. Also curious about this... Seeing as there are many trials with different speakers for the THAM 12, and only 2 that I have found for the FTH-12.. Now... Being that they are so similar will the THAM 12 speaker reccomendations work equally as well in the FTH12? I am unsure how precise these speakers have to be to fully utilize these enclousures so forgive me if I seem like I am over complicating myself here... I just want to do this once and do it right. This is what is mainly holding me back on the build right now.. Some of the options for suggested woofers are just not available in the states.. Heres what I have to work with here ... Tony's Origional build speaker Celestion FTR12-4080HDX 12" Professional Cast Frame Speaker 1000W (THIS is available for $199) @ parts express Product Specifications Nominal Diameter12"Power Handling (RMS)1,000 Watts Power Handling (max)2000 WattsImpedance8 ohms Frequency Response47 to 3,000 HzSensitivity93 dB 2.83V/1m Voice Coil Diameter4"Magnet Weight110 oz. Thiele-Small Parameters Resonant Frequency (Fs)61 HzDC Resistance (Re)6.05 ohms Voice Coil Inductance (Le)1.92 mHMechanical Q (Qms)2.23 Electromagnetic Q (Qes)0.45Total Q (Qts)0.37 Compliance Equivalent Volume (Vas)0.88 ft.³Mechanical Compliance of Suspension (Cms)0.06 mm/N BL Product (BL)23.81 TmDiaphragm Mass Inc. Airload (Mms)3.8g Moving Mass Of Diaphragm (Mmd)3.59Maximum Linear Excursion (Xmax)8 mm ............................................................................................................................................................................... His last build was created for the "FaitalPRO 12HP1020 12" Neodymium Professional Woofer 8 Ohm" ($349 available @ parts express) Product Specifications Nominal Diameter12"Power Handling (RMS)700 Watts Power Handling (max)1400 WattsImpedance8 ohms Frequency Response55 to 3,150 HzSensitivity97 dB 1W/1m Voice Coil Diameter4" Thiele-Small Parameters Resonant Frequency (Fs)55 HzDC Resistance (Re)5.5 ohms Voice Coil Inductance (Le)1.1 mHMechanical Q (Qms)9.4 Electromagnetic Q (Qes)0.28Total Q (Qts)0.27 Compliance Equivalent Volume (Vas)1.19 ft.³Mechanical Compliance of Suspension (Cms)0.09 mm/N BL Product (BL)24.3 TmDiaphragm Mass Inc. Airload (Mms)86g Moving Mass Of Diaphragm (Mmd)79.3Maximum Linear Excursion (Xmax)9 mm Surface Area of Cone (Sd)494 cm² .................................................................................................................................................................... Here are the speakers that are readily available to me in the states that are suggested for the THAM 12 plans.. I will be powering 2 of these with a Crown CE4000 power amp The Crown CE4000 Power Amp delivers 1,400W per channel @ 2 ohms, 1,200W @ 4 ohms, and 600W @ 8 ohms, 2,800W @ 4 ohms bridgd mono, 2,400W @ 8 ohms. So I would like to utilize this amps power as well as possible, as well as not fry it... Would it be best to run dual 4ohm speakers @ a 2ohm load? I am reading that this particular amp runs very cool at a stable 2ohm load. THAM 12 SPEAKER RECCOMENDATIONS..... ................................................................................................................................................................................. "Eminence Kappalite 3012LF-4 High Power Neo 12" Subwoofer 4 Ohm" ($184.99 parts express) Product Specifications Nominal Diameter12" Power Handling (RMS)550 Watts Power Handling (max)1100 WattsImpedance4 ohms Frequency Response41 to 2,000 HzSensitivity92.9 dB 1W/1m Voice Coil Diameter3" Thiele-Small Parameters Resonant Frequency (Fs)36 HzDC Resistance (Re)3.89 ohms Voice Coil Inductance (Le)0.66 mHMechanical Q (Qms)8.38 Electromagnetic Q (Qes)0.32Total Q (Qts)0.31 Compliance Equivalent Volume (Vas)3.79 ft.³Mechanical Compliance of Suspension (Cms)0.26 mm/N BL Product (BL)14.27 TmDiaphragm Mass Inc. Airload (Mms)72g Maximum Linear Excursion (Xmax)9.1 mmSurface Area of Cone (Sd)545.4 cm² ................................................................................................................................................................................. "Eminence Definimax 4012ULF-8 12" Cast Frame Driver" (219.99 available @ parts express) Product Specifications Nominal Diameter12"Power Handling (RMS)1,200 Watts Power Handling (max)2400 WattsImpedance8 ohms Frequency Response37 to 200 HzSensitivity90.7 dB 1W/1m Voice Coil Diameter4"Magnet Weight109 oz. Thiele-Small Parameters Resonant Frequency (Fs)40 HzDC Resistance (Re)6.2 ohms Voice Coil Inductance (Le)4.32 mHMechanical Q (Qms)12.13 Electromagnetic Q (Qes)0.32Total Q (Qts)0.31 Compliance Equivalent Volume (Vas)1.46 ft.³Mechanical Compliance of Suspension (Cms)0.1 mm/N BL Product (BL)27.38 TmDiaphragm Mass Inc. Airload (Mms)153g Maximum Linear Excursion (Xmax)6.7 mm .................................................................................................................................................................................. "B&C 12PS100 12" Woofer" ($211.61 available @ parts express) Product Specifications Nominal Diameter12"Power Handling (RMS)700 Watts Power Handling (max)1400 WattsImpedance8 ohms Frequency Response45 to 1,000 HzSensitivity93 dB 1W/1m Voice Coil Diameter4" Thiele-Small Parameters Resonant Frequency (Fs)44 HzDC Resistance (Re)5.3 ohms Voice Coil Inductance (Le)2 mHMechanical Q (Qms)3.9 Electromagnetic Q (Qes)0.29Total Q (Qts)0.27 Compliance Equivalent Volume (Vas)1.6 ft.³BL Product (BL)22.5 Tm Diaphragm Mass Inc. Airload (Mms)106gMaximum Linear Excursion (Xmax)8 mm Surface Area of Cone (Sd)531 cm² Materials of Construction Cone MaterialPaperSurround MaterialCloth Voice Coil Wire MaterialCopperVoice Coil FormerFiberglass Magnet MaterialFerrite ................................................................................................................................................................................... "B&C 12NW76 12" Neodymium Woofer" ($238.25 available @ parts express) Product Specifications Nominal Diameter12"Power Handling (RMS)500 Watts Power Handling (max)1000 WattsImpedance8 ohms Frequency Response40 to 2,000 HzSensitivity99 dB 1W/1m Voice Coil Diameter3" Thiele-Small Parameters Resonant Frequency (Fs)40 HzDC Resistance (Re)5.3 ohms Voice Coil Inductance (Le)1.25 mHMechanical Q (Qms)3.7 Electromagnetic Q (Qes)0.17Total Q (Qts)0.16 Compliance Equivalent Volume (Vas)2.7 ft.³BL Product (BL)25.5 Tm Diaphragm Mass Inc. Airload (Mms)77gMaximum Linear Excursion (Xmax)8 mm Surface Area of Cone (Sd)522 cm² .......................................................................................................................................................................... B&C 12BG100 12" Neodymium Subwoofer" (299.90 available @ parts express) Product Specifications Nominal Diameter12"Power Handling (RMS)1,000 Watts Power Handling (max)2000 WattsImpedance8 ohms Frequency Response40 to 1,000 HzSensitivity93 dB 1W/1m Voice Coil Diameter4" Thiele-Small Parameters Resonant Frequency (Fs)39 HzDC Resistance (Re)5.1 ohms Voice Coil Inductance (Le)1.6 mHMechanical Q (Qms)6.8 Electromagnetic Q (Qes)0.35Total Q (Qts)0.33 Compliance Equivalent Volume (Vas)1.45 ft.³BL Product (BL)23 Tm Diaphragm Mass Inc. Airload (Mms)152gMaximum Linear Excursion (Xmax)10.5 mm Surface Area of Cone (Sd)522 cm² .................................................................................................................................................................... FaitalPRO 12FH500 12" Neodymium Professional Woofer 4 Ohm" ($262 available @ parts express) Product Specifications Nominal Diameter12"Power Handling (RMS)500 Watts Power Handling (max)1000 WattsImpedance4 ohms Frequency Response45 to 4,000 HzSensitivity97 dB 1W/1m Voice Coil Diameter3" Thiele-Small Parameters Resonant Frequency (Fs)45 HzDC Resistance (Re)3.3 ohms Voice Coil Inductance (Le)0.63 mHMechanical Q (Qms)9.09 Electromagnetic Q (Qes)0.23Total Q (Qts)0.23 Compliance Equivalent Volume (Vas)2.44 ft.³Mechanical Compliance of Suspension (Cms)0.2 mm/N BL Product (BL)15.5 TmDiaphragm Mass Inc. Airload (Mms)60.9g Moving Mass Of Diaphragm (Mmd)54.7Maximum Linear Excursion (Xmax)7.25 mm Surface Area of Cone (Sd)487 cm² ........................................................................................................................................................... FaitalPRO 12FH510 12" Professional Woofer 8 Ohm" ($220 availavle @ parts express) Product Specifications Nominal Diameter12"Power Handling (RMS)500 Watts Power Handling (max)1000 WattsImpedance8 ohms Frequency Response45 to 3,150 HzSensitivity98 dB 1W/1m Voice Coil Diameter3" Thiele-Small Parameters Resonant Frequency (Fs)45 HzDC Resistance (Re)5.1 ohms Voice Coil Inductance (Le)0.9 mHMechanical Q (Qms)10.9 Electromagnetic Q (Qes)0.25Total Q (Qts)0.24 Compliance Equivalent Volume (Vas)2.46 ft.³Mechanical Compliance of Suspension (Cms)0.2 mm/N BL Product (BL)18.9 TmDiaphragm Mass Inc. Airload (Mms)61g Moving Mass Of Diaphragm (Mmd)54.9Maximum Linear Excursion (Xmax)7.5 mm Surface Area of Cone (Sd)489 cm² ......................................................................................................................................................................... RCF LF12G301 12" Woofer Speaker" ($258 available a@ parts express) Product Specifications Nominal Diameter12"Power Handling (RMS)450 Watts Power Handling (max)900 WattsImpedance8 ohms Frequency Response40 to 2,000 HzSensitivity97 dB 2.83V/1m Voice Coil Diameter3" Thiele-Small Parameters Resonant Frequency (Fs)43 HzDC Resistance (Re)5.8 ohms Voice Coil Inductance (Le)2 mHMechanical Q (Qms)4.6 Electromagnetic Q (Qes)0.23Total Q (Qts)0.22 Compliance Equivalent Volume (Vas)3.43 ft.³BL Product (BL)19 Tm Diaphragm Mass Inc. Airload (Mms)56gMaximum Linear Excursion (Xmax)6.8 mm Surface Area of Cone (Sd)530 cm² Materials of Construction Cone MaterialPaperSurround MaterialCloth Voice Coil Wire MaterialCopperVoice Coil FormerFiberglass Magnet MaterialFerrite ...................................................................................................................................................................... Please let me know what you guys think on any of these questions, and I am open to your suggestions. Thank you in advance and have a great day/morning/evening.........Where every you are at... ;) Sorry for swamping you guys with the questions... Trying my best to learn this here.. much more involved with these builds then I thought there would be....

DemonKnight Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 16 October 2016 Location: Chicago IL Status: Offline Points: 41	Post Options Post Reply Quote DemonKnight Report Post Thanks(0) Quote Reply Posted: 21 October 2016 at 2:40am
	Forgot to add... If a box is tuned to 45hz or 50hz will putting a speaker in it forsay an " Eminence Kappalite 3012LF-4 High Power Neo 12" Subwoofer 4 Ohm low frequency driver" "Frequency Response 41 to 2,000 HzSensitivity92.9 dB 1W/1m Drop the over all tuning or does the box tuning keep the frequency stable? Inquiring minds want to know.....

bee Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 14 June 2011 Location: Middlesex Status: Offline Points: 4549	Post Options Post Reply Quote bee Report Post Thanks(0) Quote Reply Posted: 21 October 2016 at 11:32am
	Thank you, glad I can be of help. Good luck with the build, cant wait to see some pics of this project. Feel free to ask away for any help advice.
	https://www.elements-audio.com