Powersoft M-Force Specs Now Available - diyAudio
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Old 19th January 2015, 09:53 AM   #1
ErnieM is offline ErnieM  United States
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Default Powersoft M-Force Specs Now Available

Impressive specs on these monsters...and you'll pay for it dearly knowing how much their amps cost.

M-System - Powersoft Audio

These are suitable for horn loading. Maybe some of you HornResponse guys can sim what they might be capable of.
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Old 19th January 2015, 09:59 AM   #2
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any idea about cost?
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Old 19th January 2015, 10:17 AM   #3
ErnieM is offline ErnieM  United States
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I can only guess. Several grand at a minimum for the whole package. A B&C Ipal 21 is something like $1500. Their amps are a few grand a piece.

Approaching $10,000 is probably not too out of line. Hopefully someone with real knowledge can let us know.
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Old 20th January 2015, 12:16 AM   #4
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Qts .089
good lord
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Old 20th January 2015, 12:34 AM   #5
sine143 is offline sine143  United States
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hehehe

keep in mind, this is without the cone attached I believe. the added mass and the suspension of the surround should impact qts.
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Old 20th January 2015, 12:36 AM   #6
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Nope, that was WITH the diaphragm.
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Old 20th January 2015, 04:18 AM   #7
sine143 is offline sine143  United States
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oh, only the one with the absolute smallest diaphragm lol.
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Old 20th January 2015, 04:50 AM   #8
sine143 is offline sine143  United States
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the only way to get them to work in a horn (with their massivly low qts) is with an insanely high compression ratio.... (like, 15:1)) though, perhaps the cones are up to it :/
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Old 20th January 2015, 05:40 AM   #9
sine143 is offline sine143  United States
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darnit why does the edit button go away so quickly. for all I care the last 2 posts can be deleted

it looks like for the mforce 1, 40", reverse cone (3rd column) I've simmed a 1600 liter tapped horn (too much motor for front loaded horns...). it extends down to 29hz, and has 101 db sensitivity at the low corner (rising above to 103db at 70db, where tapped horns **** starts to happen).

It handles 65 volts... 15kw at impedance minima and stays within xmax of 15mm. 2 of them should slay 12 labhorns.... I only have paint on this computer. will post graphs tmrw
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Old 20th January 2015, 08:58 AM   #10
Calvin is offline Calvin  Germany
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HI,

donīt mix Powersofts IPAL with M-Force.
The IPAL is a system of a current mode Amplifier, differential pressure motional feedback control system and a (truely) specialized high efficiency dynamic bass driver.
Current mode and high efficiency require the unusual low Rdc and Qt of the driver.
M-Force is different in that it concentrates around a specialized drive system of the bass driver.
Instead of fixed magnets and moving coils as typical, M-Force does the plain opposite.
The coils are fixed and the diaphragm is connected to a moving magnet structure.
Taking the integration idea further, a amp is included into the coil/magnet cabinet and the IPAL idea of motional feedback may also be applied.

jauu
Calvin
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