maybe the long acoustic port like tml is mainly a maketing feature and only secondary a useful alignment.
And they keep to the resonant sound most people are used to and associate falsely with bass response.
And they keep to the resonant sound most people are used to and associate falsely with bass response.
It is not "favoring", low frequency tuning demand long ports.
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It is common marketing practice, to present big wattage numbers for amps - for example, 500W @ 10% THD. But it does not means the same amplifier has 10% THD at 200W, more likely it is 0.1% THD.
Besides distortion, one very important parameter is for how long can that amp provide clean power.
I seriously doubt it will ouput 500 watts continuously. Will its switching power supply survive continuous demand of ~600 watts? Not likely.
They measure short term output, assuming music is dynamic, with just peaks of power.
Thats fine, but spec means absolutely nothing if not standardized.
Amp cramped in such small space without proper cooling will eventually self destruct.
I seriously doubt it will ouput 500 watts continuously. Will its switching power supply survive continuous demand of ~600 watts? Not likely.
They measure short term output, assuming music is dynamic, with just peaks of power.
Thats fine, but spec means absolutely nothing if not standardized.
Amp cramped in such small space without proper cooling will eventually self destruct.
Neither do I.
Wait, in the video they showed the chip specified at 2x300 watts, or 400 watts mono.
Wait, in the video they showed the chip specified at 2x300 watts, or 400 watts mono.
Using short ports would require them to be tiny, they would blow wind rather than make bass at high drive levels.
SVS uses DSP, equalizing for a flat response is no problem within the usable pass band of a ported or sealed sub.
That said, there is a very large difference in the low frequency maximum output potential between the SVS PB-13 Ultra's three modes of operation: 20Hz, 15Hz, and sealed, when measured outdoors:
https://data-bass.com/systems/5b11c1e3a201f10004e39d67#c9ff193c8e3d2c0dd791b4a1ffe6ae4e
In the 12.5 to 40Hz range, the ported modes would sound as much as four times louder, while having only a fraction of the distortion:
Ports are a lot cheaper than drivers and amplifiers 😉
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