TF1520 (Legacy)
15-inch pressed steel chassis, ferrite magnet bass/mid driver
- Versatile 15in bass and mid-range speaker drive providing 96dB sensitivity
Specifications
15in
Diameter
300W
Continuous power rating
8Ω
Rated impedance
96dB
Sensitivity
Nominal diameter
381mm / 15in
Power rating
150W
Continuous power rating
300W
EIA power rating
250W
Rated impedance
8Ω
Sensitivity
96dB
Frequency range
45-4000Hz
Chassis type
Pressed steel
Magnet type
Ferrite
Magnet weight
1.1kg / 40oz
Voice coil diameter
50mm / 2in
Voice coil material
Round copper
Former material
Polyimide
Cone material
Kevlar loaded paper
Surround material
Cloth-sealed
Suspension
Single
Gap height (Hg)
8mm / 0.24in
VC winding height (Hvc)
14.5mm / 0.57in
Parameters
Sd
855.30cm2 / 132.57in2
Fs
54.90Hz
Mms
65.49g / 2.31oz
Qms
5.165
Qes
0.840
Qts
0.723
Re
5.79Ω
Vas
132.98I / 4.70ft3
BI
12.48Tm
Cms
0.13mm/N
Rms
4.37kg/s
Le (at 1kHz)
0.80mH
Xmax
3mm / 0.12in
Mounting Information
Overall diameter
385mm / 15.16in
Overall depth
158mm / 6.2in
Cut-out diameter
352mm / 13.86in
Mounting hole dimensions
9.4x6.3mm / 0.37x0.25in
Number of mounting holes
8
Mounting hole PCD
370mm / 14.57in
Unit weight
5.0kg / 11.0lb
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
5.5kg / 12.1lb
Multi pack qty
4
Multi pack size W x D x H
750mm x 340mm x 440mm / 29.5in x 13.4in x 17.3in
Multi pack weight
22kg / 48lb
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: Hvc-Hg/2
