Does a powered subwoofer need an amplifier?

Most people choose powered subwoofers because they come with built-in amplifiers and don’t need help from another receiver or amplifier to work. This ensures they are easy to use in combination with the average home-theatre receiver. All home theatre receivers come with pre-amp line outputs.

Are powered subwoofers any good?

Powered subwoofers are a perfectly matched Subwoofer, Amp, and Box. They sound great and are usually VERY reliable. Due to this reliability, the setup dosent push the Db, Bass, and Sound limits as much as you could using your own custom setup.

What is the difference between passive and powered subwoofers?

The difference between passive and active subwoofers is that passive subwoofer depends on an external amplifier, while an active subwoofer contains a built-in amplifier. The passive subwoofer is usually smaller and less bulky than the active subwoofer, although it produces a less intense sound.

Is it better to wire speakers in parallel or series?

As a general rule, parallel speakers are louder than series speakers. That’s because: Wiring speakers in series increases the total speaker impedance (Ohms) load, decreasing how much electrical current (amps) can flow. This means the amp or stereo’s power output will be lower.

What size amplifier do I need to power two subwoofers?

Don’t choose an amplifier based on a power rating at an impedance your subwoofers cannot provide Just because your amplifier will do 1,000 watts RMS doesn’t mean it’s the right amp to power two subwoofers that have a power handling of 500 watts each.

Are 4 ohm speakers safe to run on a receiver?

However, many of the better Receivers today have a large enough power supply, heat sink area, and current capability in the amp sections to handle 4 ohm loads. You are usually safe running these speakers on the Flagship Receiver models from: {Yamaha, Denon, Onkyo, Harman Kardon, NAD, Nakamichi).

How much power does a 2 ohm voice coil subwoofer need?

RMS power handling of a 55 series 12” dual 2 ohm voice coil subwoofer is 400 watts. Two of these subwoofers would mean you need 800 watts of power at to the total circuit impedance. In this case, let’s say we are going to wire them to a total, effective impedance of 2ohms.

Why won’t my subwoofers work with my amp?

Most of the 1000 watts of current will be restricted by the additional resistance of 8 ohms and the amplifier would more likely be delivering 250-watts to the subwoofers when wired in this fashion. Wiring subwoofers to the wrong, or unmatched, amplifier impedance is a VERY common cause of blowing amplifiers and burning voice coils in subwoofers.