ACR124D - Subwoofer Planet Audio - Free user manual and instructions
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USER MANUAL ACR124D Planet Audio
www.planetaudiousa.com
ACR124D
all specifications subject to change without notice
© 2012 Planet Audio
USER'S MANUAL
Planet Audio®
ACR124D
12" Dual Voice Coil Subwoofer
Recommended Enclosures
Please note : Our recommended box volumes are given for internal air requirements.
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| Frequency (Hz) | Amplitude Response (dB/Hz) | | -------------- | -------------------------- | | 34 | 3 |Frequency
Sealed Enclosure (RECOMMENDED)
Box Volume : 1.5 Cu Ft
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Technical line drawing of a mechanical component with no visible text or symbolsBox is given as internal air volume including driver displacement
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| Frequency (Hz) | Amplitude Response (dB/Hz) | | -------------- | -------------------------- | | 32 | 32 |Frequency
Ported Enclosure
Box Volume : 1.8 Cu Ft
natural_image
Technical line drawing of a mechanical component with no visible text or symbolsBox is given as internal air volume including driver displacement
Port Frequency : 39 Hz
Port Diameter : 4 Inches
Port Length : 9 Inches
Product Specifications
| Speaker Impedance | table | 2ohms | 8ohms |
| Free Air Resonance | (Fs) | 31 | 31 |
| Total Q Driver @ FS including all resistance's | (Qts) | 0.918 | 0.945 |
| Q of the Driver @ FS including non electrical resistance only | (Qms) | 6.04 | 6.397 |
| Q of the Driver @ FS including electrical resistance only | (Qes) | 1.082 | 1.109 |
| The Driver's compliance expressed as an equivalent | (Vas) | 2.132 | 2.099 |
| Volume of all (cubic Ft.) | |||
| The Driver's linear displacement (inches) | (Xmax) | 0.356 | 0.356 |
| The DC resistance of the driver's twin voice coils(ohms) | (Re) | 1.8 | 7.2 |
| Thermal Power rating of Driver (R.M.S./Peak) | (Pe) | 1100W/2200W | 1100W/2200W |
| The Driver's sensitivity (dB) | (Sens) | 96 | 96 |
Calculating Enclosures
It is difficult to give exact box dimensions that are universal for all cars and trucks. It is for this reason that you must be able to calculate the space in which you have available in order to achieve the proper air volume required.
It is recommended to build your enclosure from 3/4" thick MDF (medium density fiberboard). Make sure the enclosure is sealed air tight.
Calculating External Volume
1) To calculate box volume, measure the outside Width x Height x Depth of the enclosure. Example 12" x 14" x 9" = 1512"
2) Next you must convert cubic inches into cubic feet. To do this, You must divide the cubic inch total by 1728". Example 1512 ÷ 1728 = .875 Cubic feet
Calculating Internal Volume
1) To calculate the internal (net) volume of the above box you must first multiply the thickness of the wood you are using by Two (2) Example; 3/4" x 2" = 1.5"
2) Next Subtract 1.5 from each of the outside measurements of the box.
Width 12-1.5=10.5 Height 14-1.5=12.5 Depth 9-1.5=7.5
3) Multiply the new totals (H x W x D) Example : 10.5 x 12.5 x 7.5=984.375
4) Next you must convert cubic inches into cubic feet. To do this, you must divide the cubic inch total by 1728" Example 984.375÷1728=. 5696 Cubic feet
Wiring
Please take every precaution to wire your DVC woofers for the correct impedance
2 ohms 8 ohms
12" (305mm) Subwoofer
(1100 Watts RMS Sealed Enclosure)
■ 12" (305mm) Dual Voice Coil Subwoofer
■ 2200 Watts Peak Power/1100 Watts RMS
■ Frequency Response: 28Hz-2.5kHz
■ Sensitivity: 96 dB (1 Watt/1 Meter)
■ Impedance: Dual 4 OHMS
■ Cone Material: Color Chrome Treated Poly Injection
■ Butyl Rubber Surround
■ Dual 2" (51mm) High Temperature KAPTON Voice Coil
■ Mounting Depth: 5-1/8" (130mm)