Full size powerful speaker - FRS7 S
This speaker has an excellent sound with balanced frequency response and very good highs.
- Waterproof cone
- Metal basket
- 212°F heat resistance
Size: 2 11/16" x 2 11/16"
Mounting Hole: (ctr-ctr) 2 3/16"
Height: 1 3/8"
Rated power 8 W
Maximum power 15 W
Nominal impedance Z 8 Ohm
Frequency response 200–20000 Hz
Mean sound pressure level 88 dB (1 W/1 m)
Opening angle (-6 dB) 149°/4000 Hz
Excursion limit +/−1,5 mm
Resonance frequency fs 250 Hz
Magnetic induction 1,2 T
Magnetic flux 160 µWb
Height of front pole-plate 2 mm
Voice coil diameter 14 mm
Height of winding 3,5 mm
Cutout diameter 61 mm
Net weight 0,2 kg
D.C. resistance Rdc 7,2 Ohm
Mechanical Q factor Qms 3.32
Electrical Q factor Qes 2.08
Total Q factor Qts 1.28
Equivalent volume Vas 0.3 l
Effective piston area Sd 22 cm²
Dynamically moved mass Mms .8 g
Force factor Bxl 2.1 T m
Inductance of the voice coil L 0.6 mH
Temperature range −13 ... 212 °F
This speaker is made in Germany by the German manufacturer Visaton, a company that I personally know for more than 30 years. I build my first studio speakers with speakers from Visaton and they lasted for 15 years until I sold them - and they probably perform still today. So it is no surprise, when entering into the garden railroad sounds, I found Visaton again - and they are great!