Quad voice coils on DD 9515f

[transamfan 10+ year member]

Anyone heard of DD running quad voice coils? The sub is supposed to be 4 1 ohm coils. I have never had a sub with 4 coils, so could I run this at 1 ohm? Also, the sub is a f motor but has triple stacked magnets. Could this be true?

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[Redlineaudio 10+ year member]

They had a Quad Option for a while, I have been told that it is no longer available.

 

[BigJoker 10+ year member]

Anyone heard of DD running quad voice coils? The sub is supposed to be 4 1 ohm coils. I have never had a sub with 4 coils, so could I run this at 1 ohm? Also, the sub is a f motor but has triple stacked magnets. Could this be true?

there is alot of subs with quad coils.

E & F motors are double stack. might be a d motor.