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phusis

Responses from phusis

Subwoofer speed is in the room, not the box
@mijostyn wrote: I have no experience with horn subwoofer. For most of us they are impractical do to size constraints. For sure distortion will be lower for any given size driver due to efficiency. They problem is low bass will rattle and resona... 
Subwoofer speed is in the room, not the box
@mijostyn wrote: You want the sub running certainly up to 80 Hz and I will go no lower than 100 Hz. The solution to this problem is running steeper filters, not lowering the crossover point. The problem here is analog filters are terrible at thi... 
Subwoofer speed is in the room, not the box
@sfgak wrote: Hadn't hear of Xilica before. Looks very interesting. Which model(s) do you have?  The XP-3060. It's controlled wirelessly via my laptop, which makes setting filter values for every driver section on the fly from the listening po... 
Finally...subwoofer that's aesthetically pleasing!
@james633 wrote: Just and FIY, the subs are passive. They had the 2000 watt Mac amps driving the sub section… @mganga wrote: $750K and the subs are passive. What a day we live in. But whoever buys these doesn’t even care as value is not even... 
Subwoofer speed is in the room, not the box
@erik_squires wrote: The efficiency of a driver in a cabinet is determined by the driver, not the box. Except with horns. The cabinet/horn does the heavy lifting, not the driver - very neat. When the driver has the sole burden to carry, you he... 
Dd67000 crossover points?
My Electro-Voice main speakers are crossed at just over 600Hz to a large format midrange/tweeter horn (2" exit) that runs up to 17-18kHz. An important takeaway here is that the Constant Directivity horn controls directivity all the way down to the... 
Subwoofer speed is in the room, not the box
@gdaddy1 wrote: After many, many tests...I respectfully disagree. So does REL. From REL..."Almost 100% of the time, newcomers will set the crossover too high and the gain (volume level) too low. This will result in a sound that is fatter, boomi... 
Subwoofer speed is in the room, not the box
@gdaddy1 wrote: You will never find tight punchy bass by setting a crossover high near 80hz or higher and then having to lower the volume to remove boominess. Like stepping on the brakes trying to go faster. That's completely backwards and is NO... 
Finally...subwoofer that's aesthetically pleasing!
Correction to above post of mine: It seems the Suprema system is only semi-active - that is, the subs only and not the main speakers, although the electronic crossover offers a high-pass function of the main towers.    
Finally...subwoofer that's aesthetically pleasing!
@yesiam_a_pirate wrote: $750K for subs?  Are there that many people rich enough or foolish enough to plop down $750,000 for these?  It is my understanding that's the price for the entire mains + subs (and electronic crossover) system, not that... 
Subwoofer speed is in the room, not the box
@erik_squires wrote: No one wants peaks or nulls, but IMHO and experience, peaks are worse. Of course, mathematically we can compute power differences for each, but peaks are bad because they tend to force the listener to keep the overall subwoo... 
How does bi-wiring work?
@panzrwagn -- +1  
Subwoofer speed is in the room, not the box
@erik_squires wrote: The biggest problems I’ve heard/seen have been excessively large peaks in the subwoofer range. Sometimes those peaks put out 20x more power into a room than the rest of the subwoofer. Think about that!! Your 1000 W sub is pu... 
Horns and 2in Drivers
It’s confusing when compression driver size is mentioned without specifying whether exit or diaphragm diameter is meant. What I can reiterate is that a 2" exit compression driver (with a bigger diaphragm as well - usually 3 or 4") makes a signifi... 
All speakers have a little EQ built in
That’s one of the cool aspects of outboard actively configured speakers and controlling the filter parameters with an external DSP at the listening position, on the fly from your network connected laptop; every filter tweak here is done via the al...