RFZ2408/2808
RFZ2410/2810
RFZ2412/2812
RFZ2415/2815
Specification
Reference
Sheet
S
PECIFICATIONS
Specifications subject to change without notice
8” Punch Woofer
10” Punch Woofer
12” Punch Woofer
15” Punch Woofer
F
EATURES
•
Stamped Basket
– A speaker basket manufactured using a
stamped Cold Rolled Steel process for durable and lightweight con-
struction
•
Dual Laminated Foam Surround
– A durable suspension com-
ponent that adds mechanical strength to the woofer.
•
Aluminum Voice Coil Former
– Improves
thermal
power han-
dling by efficiently dissipating heat away from the voice coil.
Recommended Enclosures
•
Hyper-Extended Pole Piece
– Lowers distortion and provides better
low frequency response by operating the voice coil in a very linear fashion
thoughout its travel in the magnetic field.
•
Vented Bumped Back Plate
– Allows more excursion by allowing
the speaker to travel farther without bottoming out and increases power
handling by circulating cool air around the voice coil assembly.
•
Polypropylene Cone
– Provides improved durability while being
lightweight and rigid.
®
®
RFZ2408
RFZ2808
RFZ2410
RFZ2810
RFZ2412
RFZ2812
RFZ2415
RFZ2812
Nominal Impedance
4
8
4
8
4
8
4
8
Voice coil diameter
1.5
1.5
1.5
1.5
1.5
1.5
2
2
Fs (Hz)
30
33
31
32
27
27
22
22
QTS
0.47
0.630.69
0.81
0.62
0.68
0.67
0.67
VAS (cu. Ft.)
1.4
1.2
2.6
2.6
4.7
5.1
11.1
11.1
VAS (liter)
40.8
34.9
74.7
73.4
133.0
143.8
313.3
313.3
Xmax (in)
0.2
0.2
0.2
0.2
0.28
0.28
0.24
0.24
Xmax (mm)
5
5
5
5
7
7
6
6
SPL (dB @ 1w/1m)
85.2
84.8
86.8
86.388.0
88.0
88.5
88.5
Power (Watts RMS)
100
100
100
100
100
100
150
150
Power (Watts Peak)
200
200
200
200
200
200
300
300
Mounting Dia (in)
7-1/8
7-1/8
9-5/16
9-5/16
11-1/8
11-1/8
14
14
Mounting Dia (mm)
181
181
237
237
283
283
356
356
Mounting Depth (in)
3-1/2
3-1/2
4 - 3/16
4 - 3/16
4-29/32
4-29/32
6-5/16
6-5/16
Mounting Depth (mm)
89
89
106
106
125
125
160
160
Speaker Disp (cu. ft.)
0.05
0.05
0.06
0.06
0.09
0.09
0.1130.113
Speaker Disp (liter)
1.415
1.415
1.698
1.698
2.547
2.547
3.1979
3.1979
Sealed Box Vol (cu. ft)
0.30.3
0.75
0.75
1.25
1.25
2.5
2.5
Sealed Box Vol (liter)
8.49
8.49
21.225
21.225
35.375
35.375
70.75
70.75
Vented Box Vol (cu.ft.)
0.625
0.625
1
1
2
2
2.5
2.5
Vented Box Vol (liter)
17.6875
17.6875
28.328.3 56.6
56.6
70.75
70.75
Sealed
Sealed enclosures are the simplest to build. The most important part of
building a sealed enclosure is to make sure that the enclosure is airtight.
Using glue and some type of sealant on all seams will ensure solid construc-
tion and prevent air leaks. The box volume will directly impact the perform-
ance of the speaker. Larger enclosures will provide flatter response and
deeper bass where smaller boxes will provide a bump in the response curve
and generally higher output for greater SPL.
Advantages of sealed enclosures:
-Small enclosures
-Linear (Flat) Response
-No port noise
-High power handling at all frequencies
-Excellent for sound quality
Vented
Vented enclosures vary only from the sealed enclosure in that a vent or port
is added to “tune” the enclosure. The enclosures recommended are
designed for great overall performance. Larger boxes tend to be easy to tune
to lower frequencies while medium and small boxes are easier to tune to
higher frequencies. The vented design is less linear in response than the
sealed box but with noticably more output at the tuning frequency.
Advantages of vented enclosures
-Higher average output than sealed
-Tuning frequency can be easily adjusted by changing port length
-Deep bass response with lower power requirements
-Great for high output with limited power
