Choosing the Right Receiver/Amplifier
To give you the best balance of power and performance, select an amplifier or receiver that delivers continuous watts (many times also referred to as “RMS”) in accordance with the speaker’s continuous power handling rating.
For example, a Klipsch RP-8000F is a floorstanding speaker with a nominal impedance of 8 Ohms, rated at 150 Watts continuously. So, any receiver or amplifier that delivers right around 150W per channel at 8 Ohms with full frequency bandwidth (20Hz - 20,000Hz) would be a good match.
NOTE: To ensure you do not damage your speakers, Klipsch recommends the AV receiver or amplifier you choose is no less than 80% of the recommended continuous power handling, and no more than double the continuous power handling. For example, the RP-8000F requires an AV receiver with a bare minimum of 120W per channel (8 ohms), and no more than 300W per channel (8 ohms).
However, don't be misled; although a speaker’s peak power rating can be much higher (in the RP-8000F, for example, it's 600 Watts), remember that peak power means exactly that…a momentary exposure. Trying to make any speaker perform for more than an instant at peak power is an open invitation for damage.
The right amplifier, one that has it's power well-matched to the speakers, will also eliminate the need to overdrive components (play them too loud). Which, over-driving can cause clipping, which distorts the signal and can cause serious damage to the tweeter or possibly even the woofer.
In addition, believe it or not, under-powering speakers can cause as much risk for damage as too much power can. For example, if listening to an under-powered system at a loud volume, you will be running a high risk of damaging or blowing the tweeter(s) altogether. So, just make sure your receiver/amp's power output rating is right around what the speaker's continuous power rating is.
If you have multiple speakers in your system, all with different power ratings, then you will want to gauge the receiver's output power rating based off of the highest-powered speaker in your system. This will usually be your Front Left, Front Right or possibly even your Center channel speaker.
However, it is also important that the RMS of your chosen receiver is not more than double the minimum continuous power of the smallest speaker. This is why it is important to make sure your speakers in your system are not drastically different in size and power handling.
Horn-driven speakers, such as Klipsch, are much more efficient than their direct radiating counterparts and require less power to create great sound. Just be sure to keep the receiver’s output closely matched to speaker specifications to ensure years of trouble-free performance.
For questions regarding powering your system properly, please reach out to Klipsch Product Support for direct assistance - How To Contact Us for Support