Hi,
just curious, GT commented that the 9 cubic feet of the 4345 contributed to the less than articulate bass of the 4345, why then is the B460 designed with only 8 cubic feet ?
thanks
Hi,
just curious, GT commented that the 9 cubic feet of the 4345 contributed to the less than articulate bass of the 4345, why then is the B460 designed with only 8 cubic feet ?
thanks
http://www.audioheritage.org/vbullet...l=1#post110349
GTimbers: "........... It also had a reputation for less than detailed bass, which I have always thought was due to the enclosure not being quite large enough. I haven't thought about these things in years ..."
Regards
Ivica
". . . as you have no doubt noticed, no one told the 4345 that it can't work correctly so it does anyway."—Greg Timbers
May be our member
ZELJKOR ( http://www.audioheritage.org/vbullet...?11146-zeljkor )
can give us more words as his 4345 has 340Lit (12ft3) box volume with 2245H installed
http://www.audioheritage.org/vbullet...l=1#post342742
regards
ivica
". . . as you have no doubt noticed, no one told the 4345 that it can't work correctly so it does anyway."—Greg Timbers
The 4345 was an empirical design and the marketing guys had input in term of the passive crossover option and box dimensions.
The first thing to understand is the 4345 won't work well in full passive mode and bass definition suffers.
The L250 on the other hand needed far less volume and was not hurt by passive mode in the sale way.
Greg Timbers designed both so the comments are best viewed in the context of those designs.
To an extent a larger box would help in full passive mode as the Dcr of the Xover raises the total Q and that means a larger box to avoid ripple.
From that point of view a fixed box size is a compromise of trying to be the best of both worlds for passive and active.
I have an 8 cu foot factory sub box tuned to 30 hertz. The tuning is quite aggressive and is great or HT.
The 9 cu ft net 4345 tuned to about 28 hertz is less aggressive but with the woofer being lower to the floor boundary room placement can be an issue because the box is quite bulky.
The 10.3 cu ft tuning to 27 hertz offers two things. The slight fall in the curve does help with placement and IMHO offers a more natural extended response.
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