Förslag: JBL 15" Bas(ar) + 10" JBL mellanbas(ar) + x st. RAVEN R3.2 över 800 Hz
Varför inte i WMTMW som föreslogs tidigare. Aktiva filter förstås !!
Delning vid 200 och 800 Hz typ...
Misstänker att det skulle kunna låta fruktansvärt bra....
RAVEN
Dessa element pratas det ju lyriskt om (har tyvärr ingen egen erfarenhet, men sneglat på dom länge.) Hög känslighet -- 98.5 dB (ja kanske inte i en JBL-jämförelse då), tar allt från 800 Hz och uppåt, superrak frekvensgång. Dock dyrt = 1750 USD.
Stacka en så där 4st/kanal om ljudtrycket inte räcker (finns byggexempel på nätet med multipla RAVEN R3. Även JBL+RAVEN verkar vara en vanlig kombination.
The new Raven R3.2 MMX
The new Raven R3.2 MMX is a complete new design. Impedance is 8 ohms with 98.5 dB efficiency. On an 18 inch wide cabinet, the frequency response is 0.75 dB from 650 Hz to 19kHz. The ribbon is a new type of metal called MMX. MMX is about 5 times stronger than pure aluminum, has lower density, higher internal damping and a stronger restoring spring force. The MMX advantage is lower distortion, higher power handling and longer life. The new MMX ribbon is also 20 mm longer to reduce flex fatigue and reduce distortion. Ribbon surface area is 29 cm, equal to a 60 mm Dome.
Recommended crossover is 800 Hz, 24 dB per octave Linkwitz-Riley. We completely redesigned the magnetic circuit. The new design increased the flux density in the gap for higher efficiency. The steel shape was changed to minimize parasite flux leakage, this greatly reduced the steel weight.
Other steel shape changes result in a much smoother frequency response. This new design also led to all new gasket design and aluminum design to reduce mechanical resonance and reduce size.
Dimensions;
222.25 W x 222.25 H x 9.5 D , Magnet assembly
181 W x194 H x 177 D
Weight is 35 pounds.
The new R3.2 MMX is 1/2 the weight of the old Raven R3.1
(3.1 beskrivs här --->
http://www.orcadesign.com/companys%20products/ravendrivers/raven3.html#
Komplett fel ??
krellfan
