Piano World Home Page Forums Our Most Popular Forums Digital Pianos - Electronic Pianos - Synths & Keyboards What headphones do you use?

When you use the headphone with your Digital piano, do you notice that echo sound too Dezafinado?

Thanks.
Trihai

Question regarding higher impedance headphones: Will a small mixer, like a Mackie 1202, serve the same purpose in boosting the signal of headphones as a headphone amp?

Second question, regarding impedance: Will a 300 ohm set of headphones require half the signal boost as a 600 ohm set? (AKG K240DF/600ohms vs Sennheiser HD600/300ohms)

I don't notice any echos with my PF500, even with the volume at maximum. It could be that the sound of the decay on your piano sounds like an echo.

Q1: Mixer should help with higher impedance HPs. If you're into HiFi HPs, a dedicated Amp is an excellent idea. This is something I'm looking into in the near future because most of the top-end HPs have higher impedance.

Q2: Ohm rating is the resistance. You also need to find out the efficiency or sensitivity rating (sound pressure level or "db SPL/mW"). It's kinda like car engines - horsepowers per liter. Assuming 2 HPs having the same "db SPL/mW", one at 300 ohms requires 1/2 the power to drive than one at 600 ohms to produce the same sound level.

Calculator: http://www.headphone-amplifier.com/calculator.htm

dezafinado, Thanks for the help. I've been following this thread for a while and have found it very informative.

Just a follow-up to my own questions on this thread, and perhaps a reference to previous questions. I've just gotten a set of Sennheiser HD 600 headphones to use with my Roland RD700-SX. These headphones have an impedance of 300 Ohms, and when I plugged them directly into the keyboard, they work great, with the volume on the keyboard only about 1/3 of the way up. I'm using my mixer with them, for a bit of additional control, but the combination of signal strength from the keyboard and the 300 ohms rating of the Sennheiser seems to be a perfect match.

Excellent HPs!

Though high impedance, they are efficient (97 db/mW). And your keyboard HP output is probably low resistance too.

Yes, they really are nice. The knowledge regarding nominal impedance and signal level at the headphone jack was new to me, and guided my purchase. Much appreciation.