[Sayek]

I have sale pair of Harmon Kardon subs.

I bought these to upgrade the Base setup 6inch sub and compliment the Alpine kit for my E92.

I did not realise until i purchased that E9x Harmon Subs are 4ohms but the Fx Harmons are 8ohms.

I collected the subs today from a owner of 2015 F30. He upgraded his HK sub with Focals so reused the factory enclosure.

Does anyone know if they are worth connecting since thy are high speaker ohms, i am think they will only draw half the power from the amp, any feedback appreciated.

If no point looking to sell or swap for 4 ohms version

[makkan00]

Originally Posted by Sayek

I have sale pair of Harmon Kardon subs.

I bought these to upgrade the Base setup 6inch sub and compliment the Alpine kit for my E92.

I did not realise until i purchased that E9x Harmon Subs are 4ohms but the Fx Harmons are 8ohms.

I collected the subs today from a owner of 2015 F30. He upgraded his HK sub with Focals so reused the factory enclosure.

Does anyone know if they are worth connecting since thy are high speaker ohms, i am think they will only draw half the power from the amp, any feedback appreciated.

If no point looking to sell or swap for 4 ohms version

My understanding is that on high impedance, there will be less percussion at a given wattage. In simple words, at a give watts 200w there will be less sound.

In other words more stress on your amp.

[Sayek]

Originally Posted by makkan00

My understanding is that on high impedance, there will be less percussion at a given wattage. In simple words, at a give watts 200w there will be less sound.

In other words more stress on your amp.

Appreciate the reply. I am only going by what i read but put my hands up if incorrect.

I thought if you try to run a 2ohm speaker on amp that only capable of 4ohm stable you will stress the amp too far and kill it.
Would it not be the opposite effect if running speaker higher ohms.
Hopefully a F30 owner with damaged subs will take it off my hands

I read a very usefull review from yourself of the alpine kit that the amp produce only 40watts per channel.
As for a replacement sub based on your experience what sub would be ideal for the alpine kit based on 40watts output.

Appreciate the feedback

[makkan00]

Originally Posted by Sayek

Appreciate the reply. I am only going by what i read but put my hands up if incorrect.

I thought if you try to run a 2ohm speaker on amp that only capable of 4ohm stable you will stress the amp too far and kill it.
Would it not be the opposite effect if running speaker higher ohms.
Hopefully a F30 owner with damaged subs will take it off my hands

I read a very usefull review from yourself of the alpine kit that the amp produce only 40watts per channel.
As for a replacement sub based on your experience what sub would be ideal for the alpine kit based on 40watts output.

Appreciate the feedback

https://www.lifewire.com/speaker-impedance-3134705


Night time read especially the last paragraph.

Anything b/w 2-4 ohm subs are good if your amp can handle it. Alpine amp specifications are not released to the public therefore it is hard to say whether it will work with 2 ohms or not, so safer bet is 4 ohms.

[Sayek]

Originally Posted by makkan00

https://www.lifewire.com/speaker-impedance-3134705


Night time read especially the last paragraph.

Anything b/w 2-4 ohm subs are good if your amp can handle it. Alpine amp specifications are not released to the public therefore it is hard to say whether it will work with 2 ohms or not, so safer bet is 4 ohms.

Thanks for the feedback

[Sayek]

Bump
£100 with free UK mainland postage.

[Sayek]

NOW SOLD