Home Speaker Asylum

General speaker questions for audio and home theater.

How about this design?

Well, I did a little more research, with the help of some of those guys you mentioned, and decided to go with a different design. Here's what I've come up with.

MCM 8" Carbon Fiber: 2 for each speaker wired in parallel.
Power Capacity: 75W/150W RMS/peak
Sensitivity: 92dB (W/M)
Impedance: 8ohm
Re: 6.0ohm
Le: 1.92mH
Frequency response: 30Hz ~ 8KHz
Fs: 29Hz
Qts: 0.17
Qes: 0.17
Qms: 8.73
Vas: 80.46 (liters)
Xmax: 1.5mm

Vifa XT25BG60-04:

Power handling: 90 watts RMS/140 watts max • VCdia: 1" • Impedance: 4 ohms • Re: 2.9 ohms • Frequency response: 1,500-40,000 Hz • Fs: 630 Hz • SPL: 92.4 dB 2.83V/1m • Dimensions: Overall diameter: 4.125", Cutout diameter: 3.125", Depth: 2.20".

I'm going to use a Linkiwitz-Riley 2nd order 2-way design, crossed over at 3900Hz or 3300hz (still on the fence). Chosen due to manufacturer measurements and suggestions.

I'm having to go all out with this design because it's going to be powered by a 330watt per channel amp (at 4ohm), with a pre-amp without a sub out. Therefore, these speakers must do everything. Specifically these speakers would be powered by the Yamaha MX-1000U amp, and I'm not sure these speakers can handle it. I keep getting conflicting information about what constitutes a speakers power handling capability.

Suggestions, while knowing that, at least for this project, I won't be independently measuring the components due to lack of funds/equipment. I designed the box using Bass Box Pro 6, basic crossover design using basic calculators and some info from PCD.

Edits: 03/22/12 03/22/12

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