The PRV Audio FR Series sets a new standard of value in high-performance Full Range drivers. The 69FR250-4 full-range driver is an excellent choice when space is at an absolute minimum, eliminating the need for a tweeter.
This loudspeaker has a dual cone design, the primary cone handles low to midrange frequencies while the smaller secondary cone increases high-frequency response from 75 Hz to 18,000 Hz. The combination of a low-distortion motor system with a copper ring and a unique woven-cloth dust cap provides exceptional clarity, detail, and dynamics at an impressive 94 dB of sensitivity.
Nominal Impedance: 4 Ohms
Rated AES Power Handling (RMS): 125 Watts
Program Power: 250 Watts
Sensitivity (1W/1m): 94 dB
Voice Coil Diameter: 1.5″
Technical Details
GENERAL SPECIFICATIONS
Nominal Diameter
6″ x 9″ (159 x 228 mm)
Nominal impedance
4 Ohms
Rated AES Power Handling (RMS)
125 Watts
Program Power
250 Watts
Sensitivity 2.83V at 1m
94 dB
Recommended Hi Pass Crossover** **For Full Power Handling
80 Hz** **12db Per Octave Crossover
Frequency Response at -10dB
75 – 18,000 Hz
Voice Coil Diameter
1.5″ (38 mm)
Voice Coil Wire
CCAW
Voice Coil Winding Depth
10.0 mm
Former Material
Kapton
Magnetic Gap Depth
6.0 mm
Frame Material
Aluminum
THIELE-SMALL PARAMETERS
Equivalent Volume
Vas
13.9 l
Excursion (mathematical)***
Xmax
3.50 mm
Free Air Resonance
Fs
82.12 Hz
Mechanical Factor
Qms
15.28
Electrical Factor
Qes
0.74
Total Factor
Qts
0.70
Cone Area
Sd
200 cm²
Mechanical Mass
Mms
15.1 g
Bl Factor
Bl
6.1 Tm
Dc Resistance
Re
3.5 Ohms
Inductance
Le
0.160 mH at 1 kHz
Mechanical Mass Without Air
Mmd
13.48 g
Mechanical Compliance
Cms
0.18 mm/N
***Xmax=(Voice coil winding depth-Magnetic Gap depth)/2+ Mgnetic Gap Depth/4
