Recent content by amirm

It is and a point I made to Eric when I quoted that law. However, I would imagine this sets the atmosphere under which such cases are looked at. My review is different than other kind of journalism.

Very nice looking!

Hard to comprehend the scale of this engine:

It is coconut coir.

You can't be serious. By that notion I can have an amplifier with 0.0001 milliwatts of power and have any SPL I want to have? Given the same drive level, higher sensitivity will produce higher SPL. Lower the power and SPL will drop.

Common fallacy in these arguments. There is no such thing as "switch from 600 to 32 ohm." A lot of things will change in that transformation.

It is amazing how they can keep re-writing the firmware this far away.

We are not talking about strain. We are talking about inability to create power. High impedance headphones are enemy of low voltage source amplifiers. I gave you example of this. A dongle with 1 volt output would not be strained but simply not produce much loudness at high impedance loads.

You can't compare headphones to speakers. Headphones have a massive impedance range from 8 ohm to over 600 ohm. That causes current to be an issue at one end of the spectrum and voltage at the other. Voltage is routinely a barrier to SPL as evidenced by anemic power you get out of Sennheiser...

True and hence the reason any such technical talk needs to be about sensitivity, not efficiency. I don't care how much power comes out the back of the headphone even though that gets included in efficiency. We care about how loud the headphone sound is as it is perceived by our ear. Not total...

While your concluding statement is true, the situation is a bit different here. Erin and I can be considered part of "press" and hence, enjoy the precedence set by Supreme Court on freedoms we enjoy as a result of that. From the Wiki...

Why are you talking about current? Weak sources like dongles are limited by output voltage. Many for example max out at 1 volt. Power = V^2/R. Increase R and you will have less power. As to sensitivity, it is in the frequency response: At 20 Hz, we are 4 dB lower than at 425 Hz which...

So? I am using a very powerful/high-voltage headphone amp to drive it. A voltage limited source may not be to maintain that constant SPL.

JBL has. For the M2 speakers you can use their pro crown amps or mark levinson consumer amps. They don't support other brands though.

I think if you listen at mild to medium levels, you get better performance out of a DSP active speaker than a passive system you can put together in the same price range. That is, if you like their looks. There, you have many choices of active. If you go beyond this playback level, then it...