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Powering the subwoofer

In relation to powering the subwoofer what's your preferred technology

  • Class A with linear power supply

    Votes: 0 0.0%
  • Class A with smps

    Votes: 0 0.0%
  • Class A/B amplifier with tracking smps

    Votes: 0 0.0%
  • Class A/B amplifier with normal smps

    Votes: 0 0.0%
  • Class A/B amplifier with linear class H tracking power supply

    Votes: 0 0.0%
  • Class D amplifier with linear power supply

    Votes: 0 0.0%

  • Total voters
    14
  • This poll will close: .

modulardesign

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Mar 17, 2022
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Bass quality is affected by many things including amplifier, bass driver and room.
 

osscar

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I like class AB and linear power supply.
High transient peak margin/power reserve and reliability.
Of course - heavy weight and low energy efficiency.
I've seen a lot of dead class SMPS/D subwoofers.
 

voodooless

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Since all of these options can yield audibly transparent results (results may vary depending on implementation), especially at low frequency where distortion is very hard to hear, one should go for the most efficient option. Also given the fact that one usually needs copious amounts of power.

There are usually more important things to worry about than what amplifier technology is used. The implementation itself is far more important than the topology.
 

FeddyLost

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Class A/B (and especially A) in case of typical decent subwoofer means a lot of heat and heatsinks at least.
Good active customer subwoofers have amps of ~ 1 KWt and I see no sane way of anything but class D for such powers.
I've owned Halo A21 and I doubt that something equal to it in AB class (750 watts RMS x 1, 20 Hz - 20 kHz, 8 Ω) will fit active sub smaller than good fridge.
 

osscar

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Of course, for high powers - class D is the right solution. But for a home user (up to 200w) - class AB/B is ok.
I have seen branded subwoofers - which work in class B with small heatsinks - very basic 4-transistor circuits with Darlington transistors at the output.
 
OP
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modulardesign

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Mar 17, 2022
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Thanks for your input. We have three more months to go to see how this stacks up. Just like Apple vs Android :)
The brain decides how we hear or what we perceive. Keep sharing your perceptions .
 
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