the main reason to do something like this is what sensitivity ? how does this effect the ts if at all ?
Qts gets a little bit down and sensitivity possibly by one and a half decibels up.
There is an own thread discussing bigger magnets on the 15 inch Fane Sovereign 15 300tc:
https://www.diyaudio.com/community/threads/interest-check-custom-fane-15-full-range.327120/
I proposed there to offer a variation of the big Fane with shorter cone travel what is ok for people listening only with some small watt sources like tubes and mini chip amps.
There is an own thread discussing bigger magnets on the 15 inch Fane Sovereign 15 300tc:
https://www.diyaudio.com/community/threads/interest-check-custom-fane-15-full-range.327120/
I proposed there to offer a variation of the big Fane with shorter cone travel what is ok for people listening only with some small watt sources like tubes and mini chip amps.
did some measurements to be seen here
promised to make some measurement of the Fane 15 300tc.
It is sandwich aluminized, double cones are one sided.
damped 70 liter polypropylen box.
But I think I will house them one day in nice wooden boxes.
measured in near field 20cm on axis outside, so no walls only on the floor.
no tweeter active here!
First listening test - its needs with this F response close walls maybe even corner placement and a FBQ 1502 from Behringer won't hurt.
Burst decay is in 25 db but because of the rising response I show 35 db too, to see the mids.
Nice clean mids up...
It is sandwich aluminized, double cones are one sided.
damped 70 liter polypropylen box.
But I think I will house them one day in nice wooden boxes.
measured in near field 20cm on axis outside, so no walls only on the floor.
no tweeter active here!
First listening test - its needs with this F response close walls maybe even corner placement and a FBQ 1502 from Behringer won't hurt.
Burst decay is in 25 db but because of the rising response I show 35 db too, to see the mids.
Nice clean mids up...
sound pretty nice in a car.
The rising response fits perfectly for car hifi.
Also the bass bump due to small enclosure makes sense in a car - the bass must be louder than the motor noise
at the moment I see no need for any EQ, even bass and treble knobs rest in original position.
A small 30 watt class D amp powers them
The rising response fits perfectly for car hifi.
Also the bass bump due to small enclosure makes sense in a car - the bass must be louder than the motor noise
at the moment I see no need for any EQ, even bass and treble knobs rest in original position.
A small 30 watt class D amp powers them
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the resolution of this driver is on a high level - its revealing the character of every record.
At a second listen the treble is reduced by 2db and bass gets +2db.
Only the deep bass is lacking but this could be corrected by some smartfone EQ.
The 5db bump at 85hz is of no harm in a car hifi application.
At a second listen the treble is reduced by 2db and bass gets +2db.
Only the deep bass is lacking but this could be corrected by some smartfone EQ.
The 5db bump at 85hz is of no harm in a car hifi application.
Did the aluminium foil boost the treble by that much? That's a good trick to have in the toolbox!
now listened some time with different sorts of music the big fane in my car.
The car environment is a good match for the rising response of the big Fane so no eq at all was adapted.
The resonances to be seen in the previous post mainly above 4 khz and are whizzer cone induced are in practice not audible.
The ear seems to be forgiving at these frequencies.
Maybe it helps that the resonances are well distributed.
The car environment is a good match for the rising response of the big Fane so no eq at all was adapted.
The resonances to be seen in the previous post mainly above 4 khz and are whizzer cone induced are in practice not audible.
The ear seems to be forgiving at these frequencies.
Maybe it helps that the resonances are well distributed.