TF1525
15-inch pressed steel chassis, ferrite magnet bass/mid driver
- 15in bass and mid-range speaker driver unit providing 98dB sensitivity and
Specifications
500W
Continuous power rating
98dB
Sensitivity
2.5in
Voice coil diameter
Nominal diameter
381mm / 15in
Power rating
250W
Continuous power rating
500W
EIA power rating
400W
Rated impedance
8Ω
Sensitivity
98dB
Frequency range
40-3000Hz
Chassis type
Pressed steel
Magnet type
Ferrite
Magnet weight
1.2kg / 42oz
Voice coil diameter
64mm / 2.5in
Voice coil material
Round copper
Former material
Polyimide
Cone material
Kevlar loaded paper
Surround material
Cloth-sealed
Suspension
Single
Gap height (Hg)
8mm / 0.31in
VC winding height (Hvc)
13mm / 0.51in
Parameters
Sd
855.30cm2 / 132.57in2
Fs
47.60Hz
Mms
77.93g / 2.75oz
Qms
3.835
Qes
0.565
Qts
0.493
Re
5.15Ω
Vas
148.41l / 5.24ft3
BI
14.57Tm
Cms
0.14mm/N
Rms
6.08kg/s
Le (at 1kHz)
0.90mH
Xmax
4.5mm / 0.18in
Mounting Information
Overall diameter
385mm / 15.16in
Overall depth
153mm / 6in
Cut-out diameter
351mm / 13.82in
Mounting hole dimensions
9.2x6.2mm / 0.36x0.24in
Number of mounting holes
8
Mounting hole PCD
369mm / 14.56in
Unit weight
5.2kg / 11.5lb
Packed Dimensions & Weight
Single pack size W x D x H
410mm x 410mm x 180mm / 16.1in x 16.1in x 7.1in
Single pack weight
6.0kg / 13.2lb
Multi pack qty
45
Multi pack size W x D x H
1200mm x 1000mm x 980mm / 47.2in x 39.4in x 38.6in
Multi pack weight
270kg / 595lb
Frequency Response and Impedance Curves
Topmost curve: Frequency response on axis | Secondary curve: Frequency response at 45° off axis
Power rating: Tested for two hours using a continuous, band-limited pink noise signal as per AES standard. Power calculated on minimum impedance. Loudspeaker tested in free air.
Continuous power rating: Defined as 3dB greater than the AES rating.
Sensitivity: Measured on axis at 1W, 1m in 2π anechoic environment.
Parameters: Measured after unit subjected to pre-conditioning signal.
Xmax: 0.5*(Hvc-Hg) + 0.25*Hg
