At what impedance should I get an amp?
For optimal sound with all types of headphones the headphone amplifier’s output impedance should be as low as possible, ideally no more than 2 ohms to ensure adequate electrical damping even with 16 ohms headphones. A dedicated high quality headphone amplifier should achieve this.
Can I use headphone out as line out?
So can a headphone output be a workable substitute for a line level output in other situations? Sure, in a pinch it will usually work okay. Headphone amps usually aren’t as free from noise and distortion as good line amps, but in many situations they can be used without significant degradation in overall sound quality.
What is the impedance of line level?
Line outputs usually present a source impedance of 100 to 600 ohms. The voltage can reach 2 volts peak-to-peak with levels referenced to −10 dBV (300 mV) at 10 kΩ. The frequency response of most modern equipment is advertised as at least 20 Hz to 20 kHz, which corresponds to the conventional range of human hearing.
Is line out amplified?
The signal from your mp3 player, CD player or other outboard devices is traveling into the amp. Similarly, the “line out” jack on the back of your amp is just that–an output. The signal is traveling out of your amp to some other destination, such as a PA system or recording gear.
What happens if you do not connect speakers to your amp?
Tubes are happy. If you are on the 8 ohm tab with a 4 ohm load, the same transformer will put a 600 ohm load on the tubes and they will not perform correctly. Now, if you do not connect a load, the transformer can not reflect a load and the tubes will only see the wire in the transformer and a big coil as a load.
What happens if you leave your amp on for too long?
If there is no load, all that energy has nowhere to go, so instead it will be fed back to the power tubes causing damage. Usually the tubes will go into a growing oscillation that eventually burns them. Most of the time the output transformer is ok, but if left on long enough it can also be damaged.
What happens when speaker impedance is higher than output impedance?
If the speaker load is higher than the output impedance you have a greater chance of flyback voltages damaging the transformer, output tubes and other parts than when you’re mismatching the other way. But a lot depends on the nature of the transformer itself.
What should I do if my Headphone is not connected to my amp?
Even so, you should consult your manual or just turn the master down if it does not affect the headphone output. This is always a good rule and if the amplifier section can be turned down without affecting the headphone or DI outputs it is good to turn it down.