Basically, yes. Many Teufel speakers with 4 ohms are also commonly used with amplifiers or AV receivers designed for speakers rated at 6 ohms or higher. At normal volume levels, this is often possible without any issues. You can find more information in the article What Does the Impedance Rating "4-8 Ohms" Mean?.
However, keep in mind that the amplifier may be more heavily loaded when driving 4-ohm speakers. This is especially true at high volume levels or during prolonged use near the device’s power limit. In such cases, the device may heat up more or automatically shut down to protect itself. Learn more about how speakers and amplifiers work together in the blog article Impedance – how amplifiers and speakers work together.
Especially Important When Upgrading Speakers
If you upgrade from smaller speakers to larger models, you might want to increase the volume on the amplifier to reach your desired listening level. This requires the amplifier to deliver more power and increases its load. Combined with 4-ohm speakers, this can cause the receiver to overheat and switch to protection mode.
A common misconception is that larger speakers always play louder at the same volume setting. In reality, volume and power requirements depend on several factors. You can read more about this in the article Watt really matters – facts about electrical performance.
Our Recommendation
✅ For regular music listening, TV, and home theater in a living room setting, operation is usually unproblematic.
⚠️ Ensure adequate ventilation for the amplifier and avoid consistently very high volume levels.
✅ If you regularly use high volume levels, it is recommended to use an amplifier or AV receiver that is explicitly approved for 4-ohm speakers.
Tip: Always compare the impedance ratings of the speakers with the amplifier manufacturer’s specifications before purchasing. When in doubt, follow the amplifier manufacturer’s guidelines.