20W 8 Ohm 100mm Full Range Speaker

Product Code: 3312

Quick Overview

This is a high quality 10 cm (4") Full Range 8ohm 20W Speaker with tweeter cone. The sound quality from this speaker is excellent. Cut-out diameter 94 mm.

Availability: In Stock.

Excl. VAT: $9.727 Incl. VAT: $11.672
  • Buy 10 for $8.910 ($10.692 incl. VAT) each and save 9%

This is a high quality 10 cm (4"), 8ohm, full-range speaker with tweeter cone and European standard basket. Simple fitting in cases/vehicles with cut-outs for 10 cm speakers.

The sound quality from this speaker is excellent and is ideal for many audio applications.

- Moisturisedcone
- Metal basket

Technical spec:

Manufacturer Visaton
Manufacturer part number FR 10 HM 8 OHM
Rated power 20 W
Maximum power 30 W
Nominal impedance Z 8 Ohm
Frequency response 9522000Hz
Mean sound pressure level 86 dB (1W/1m)
Opening angle (-6 dB) 86/4000Hz
Height of front pole-plate 2 mm
Voice coil diameter 14 mm
Height of winding 5 mm
Cut-out diameter 94 mm
Net weight 0,34 kg
D.C. resistance Rdc 7,2 Ohm
Mechanical Q factor Qms 5,89
Electrical Q factor Qes 1,91
Total Q factor Qts 1,44
Inductance of the voice coil L 0,2 mH
Temperature range -25 ... 70 C


Posted by Patryk, Tuesday, 27 May 2014 on product 20W 8 Ohm 100mm Full Range Speaker


Hi I want to buy these speakers for my build but I also have 2x5w speakers spare, is it possible that I make,a stereo 5w amp and a stereo 20w amp and join the source together ? my worry is that i want to have one potentionometer that will control the volume of both amps is it possible to do that without blowing up 5w speakers or having a terrible distortion?


  • Posted by Aaron Sturman on Tuesday, 27 May 2014
    I wouldn't recommend it. It would be very difficult to use one potentiometer to control the volume of both kits. Also they might not play the music at the same time, one may play a fraction of a second later giving a weird echo effect.
Posted by Maria SN, Friday, 11 April 2014 on product 20W 8 Ohm 100mm Full Range Speaker


Hi, I was thinking about using these speakers instead of the standard speakers you get with the Deluxe Stereo Amplifier Kit, would this increase the overall sound quality? Thank You.


  • Posted by Matt Macleod on Friday, 11 April 2014
    Hi Maria, these speakers are too big to be optimal for the stereo amplifier kit. The stereo amplifier kit outputs 1W per channel so 20W speakers won't give a good response. If you are looking to get the most out of the stereo amp kit I would reccomend running it from a 12V supply like this one http://www.kitronik.co.uk/index.php?cID=712 and swapping the speakers for these http://www.kitronik.co.uk/products/components/audio/speakers/5w-6-5cm-full-range-speaker/ although they can output up to 5W they provide a really good volume and quality of sound when ran from the stereo amp kit.
Posted by James, Monday, 25 November 2013 on product 20W 8 Ohm 100mm Full Range Speaker


i am making a docking station for my project and i would like to know if i could use two of these


  • Posted by Aaron Sturman on Monday, 25 November 2013
    Hi James, you will have to be more specific. What do you want to use two of them with?
Posted by Sheil M, Friday, 1 March 2013 on product 20W 8 Ohm 100mm Full Range Speaker


what kind of size would the box for the speaker have to be?


  • Posted by Aaron Sturman on Friday, 1 March 2013
    The dimensions of the speaker can be found in a drawing under the main image. I?d recommend going a little bigger than the size of the speaker to give yourself some room, a size of 13cm x 13cm x 8cm is a good guideline. If the material you are making the box out of is very thick though you may wish to go a little bigger.
Posted by Ryan C, Monday, 20 February 2012 on product 20W 8 Ohm 100mm Full Range Speaker


i have just ordered two of these, i hope they are good because honestly, i might have to underpower these speakers, as i think my amp is 10watt p/channel or it might be 20watt p/channel..questions= A: do you know the wattage of the sony lbt-d117 ?? b: will these be alright using that voltage ?? thanks, Ryan C


  • Posted by Geoff Hampson on Monday, 20 February 2012
    I?ve not managed to find a full specification of the system you will be using with these speakers, but have been able to see that it outputs 20W, which is presumably 10W per channel. Running the speakers at 10W per channel will be fine, as you say the speakers won?t be running at their full potential, but the stereo will be. As well as checking the power you should also check the impedance of the system. These speakers are 8 ohms and most home audio systems are designed to drive in to 8 ohms. So in this case I suspect that they are likely to be correct, but a quick check on the back of the audio system would indicate the impedance. It?s always worth checking not all equipment is 8 ohms, for instance car stereos use 4 ohm speakers.

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