Hello Friends,
I have 2 18 inches sub driver and wants to design for them. I have the parameters and tried my best to design on a software but was unsuccessful.
If anybody can please give me a design dimensions I’ll be grateful.
Driver 18 inch 1500 W 4.5 inch in out coil. Pure paper cone.
I have 2 18 inches sub driver and wants to design for them. I have the parameters and tried my best to design on a software but was unsuccessful.
If anybody can please give me a design dimensions I’ll be grateful.
Driver 18 inch 1500 W 4.5 inch in out coil. Pure paper cone.
| NOMINAL DIAMETER: | 18 inch / 457 mm |
| RATED IMPEDANCE: | 8 ohms |
| PROGRAM POWER: | 3600 W |
| POWER HANDLING CAPACITY: | 1800 W |
| SENSITIVITY: | 97.0 dB |
| FREQUENCY RANGE: | 30 – 1000 Hz |
| EFFECTIVE PISTON DIAMETER: | 395 mm / 15.55 inch |
| MAX. EXCURSION BEFORE DAMAGE: | 54 mm / 2.13 inch |
| MINIMIM IMPEDANCE: | 6.8 ohm |
| VOICE COIL DIAMETER: | 4.5 inch / 114 mm |
| VOICE COIL WINDING MATERIAL: | Copper |
| VOICE COIL LENGTH: | 34 mm / 1.34 inch |
| NUMBER OF LAYERS: | 2 |
| Thiele - small parameters | |
| RESONANCE FREQUENCY (FS) | 30 Hz |
| DC RESISTANCE (RE) | 5.40 ohm |
| MECHANICAL FACTOR | 6.70 Qms |
| ELECTRICAL FACTOR (QES) | 0.29 Qes |
| TOTAL FACTOR | 0.28 Qts |
| BL FACTOR (BL) | 30.50 T x m |
| EFFECTIVE MOVING MASS (MMS) | 260.0 g |
| EQUIVALENT CAS AIR LOADED (VAS) | 220.0 liters |
| EFFECTIVE PISTON AREA (SD) | 0.120 m2 |
| MAX. LINEAR EXCURSION (XMAX) | 14.0 mm |
| VOICE COIL INDUCTANCE @ 1KHZ (LE1K) | 1.38 mH |
| HALF-SPACE EFFICIENCY (EFF) | 1.90% |
| Mounting Information | |
| OVERALL DIAMETER | 465 mm / 18.31 inches |
| BOLT CIRCLE DIAMETER | 442-447 mm / 17.4-17.6 inch |
| BOLT HOLE DIAMETER | 7 mm / 0.28 inch |
| FRONT MOUNT BAFFLE CUT-OUT | 424 mm / 16.69 inch |
| REAR MOUNT BAFFLE CUT-OUT | 424 mm / 16.69 inch |
| VOLUME OCCUPIED BY THE DRIVER | 6.5 liters / 0.26 ft3 |
| CE MARKING | Yes |
| SIZE | |
| WEIGHT | 15.2 kg / 33.51 lbs |
| HEIGHT | 212 mm / 8.35 inches |
| DIAMETER | 465 mm / 18.31 inches |
RCF LF18X451 by the looks of it.
It will help others to help you if you tell us a bit more info.
What kind of encvironment will it be used in - eg home, live gigs, outdoors vs indoors etc.
What kind of program material will you mainly use it for - eg mainstream music vs EDM vs Movies etc
Do you have any other limitations such as max size or limited amp power available?
HTH,
David.
It will help others to help you if you tell us a bit more info.
What kind of encvironment will it be used in - eg home, live gigs, outdoors vs indoors etc.
What kind of program material will you mainly use it for - eg mainstream music vs EDM vs Movies etc
Do you have any other limitations such as max size or limited amp power available?
HTH,
David.
Thanks for the reply..
It will be used for home theater
Mainly for Movies… music sometimes
No limitation of Amplifier I built it myself 5000 w RMS at 4 ohms.
It will be used for home theater
Mainly for Movies… music sometimes
No limitation of Amplifier I built it myself 5000 w RMS at 4 ohms.
Indeed, it's designed for either a huge high power sub, mid-bass horn or mid-bass sealed or vented alignment. Otherwise put it in an acoustically tiny (20* Vas*Qts^3.3 = ~66 L net) sealed box and use DSP to frequency shape it to suit.
Glad to hear from you… Thank You
However is it possible to make it 2 port vented and I have the DSP to set it up.
However is it possible to make it 2 port vented and I have the DSP to set it up.
Two 18" subs in vented cabs driven by 5000 watts...for home theater? Seriously? Do you live in a stadium? 🤔
Mike