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5W 4 Ohm 65mm Full Range Speaker

by Kitronik

This is a high quality 6.5 cm (2.5") full-range 4 ohm speaker with minimal mounting depth and small magnet.

  • Balanced frequency response and high efficiency.
  • Very good high range response.
  • Suitable in machines and other equipment where space is at a premium.
  • The sound quality from this speaker is excellent and is ideal for many audio applications.


  • Moisturised cone
  • Metal basket

Technical spec:

Manufacturer Visaton
Manufacturer part number FR 7 4 OHM
Rated power 5 W
Maximum power 10 W
Nominal impedance Z 4 Ohm
Frequency response 130 to 20000Hz
Mean sound pressure level 86 dB (1W/1m)
Opening angle (-6 dB) 86/4000Hz
Height of front pole-plate 2,5 mm
Voice coil diameter 14 mm
Height of winding 2,5 mm
Cut-out diameter 61 mm
Net weight 0,092 kg
D.C. resistance Rdc 3,4 Ohm
Mechanical Q factor Qms 7.05
Electrical Q factor Qes 3,61
Total Q factor Qts 2,39
Inductance of the voice coil L 0,1 mH
Temperature range -25 ... 70 C

Why not try it with Yukon?

Looking for a controller for your project? Yukon is a high-power modular robotics and engineering platform, built around RP2040 and designed to drive the most ambitious robots, props and devices.

Yukon is a standalone controller that can be equipped with up to six interchangeable modules capable of driving high-powered hardware - this is made possible by the unique pin capabilities of Raspberry Pi's multitalented RP2040 chip. This flexibility means you can drive many unique combinations of motors, servos, steppers, speakers, LED strips and more, all from a single Yukon host!