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How many amps do I need to drive an 8 ohm speaker?
Matching Amps to Speakers This means a speaker with a “nominal impedance” of 8 ohms and a program power rating of 350 watts will require an amplifier that can produce 700 watts into an 8-ohm load. For a stereo pair of speakers, the amplifier should be rated at 700 watts per channel into 8 ohms.
How much voltage does a speaker need?
Over 20 volts.
What drives a speaker voltage or current?
Voltage is the force that drives the current and, as has been noted, power is voltage times current. If either one is zero, you have no power. No, to drive a speaker the voltage is definitely not static, it is an AC voltage which is proportional to the sound in frequency and amplitude.
What’s the difference between 4 ohm and 8 ohm speakers?
From the formula already provided by Mark, you can see if you run a few numbers, that the power to 8 ohms is going to be half the power to 4 ohms. But remember in either case, the amp is providing the same voltage signal. The amp is limited by available voltage and the ability to deliver current.
Can a turntable be connected to an 8 ohm speaker?
Technics: Turntable (almost fully decommissioned), Cassette Deck (connected, but never used). Assuming your new 8 Ohm speakers are at least 2 way there may be a bit of a sound quality issue with the crossovers in the speaker cabs. I’m no expert but I think damage is unlikely at the sort of volumes you speak of.
How many volts can a 1 watt speaker handle?
If you used a push-pull circuit and a capacitor decoupler, a 1 watt speaker at 8 ohms impedance could be expected to handle about 2.828V RMS or 8 volts peak to peak. The better circuit would be about 7dB louder and have less distortion.
How many ohms are in a Sony dav-sc8?
The old all-in-one unit is a Sony DAV-SC8, but unfortunately the manual doesn’t give sensitivity figures for the bundled speakers. The amp though seems capable of 100W per channel (4 ohms at 1 kHz). The new speakers are rated at 85dB (2.83V/1m), which seems to be slightly on the insensitive side of ‘typical’. Thanks again for your post.