Using a 8 ohm speaker with a 4 ohm amp

Most midfi receptors may have problems driving a 4-ohm load adequately. However, many of today’s better receipts have enough electricity, heat sink area and current capacity to accommodate 4 ohm loads in the amp areas.

The entire “Medium” setting of the switch reduces the rail voltage, so that when UL checks the amplifier at a specified distortion level, the amplifier will get to the distortion level faster because it will run out of the headroom more quickly than in the “High” (8 ohm or more). This in turn produces less heat because the amplifier is not powered so hard. You do not really buy any protection for driving low impedance loads because you simply run the risk of cutting out the amplifier more quickly. The switch is available for certification.


Some receivers have a selector impedance switch. In most cases, using an 8 ohm speaker with a 4 ohm amp are recommended. The supplier provides them with UL/CSA approvals and alleviates user issues concerning the driving of low impedance loads. These switches lower the power supply to the power parts, reducing dynamics and overall loyalty. Keep the switch set to 8 ohms regardless of your speakers’ impedance and ensure that the receiver has adequate ventilation.

Unique power amps

Many of them actually running a 4-ohm amp to n 8 ohm speaker with when their architecture is sufficiently robust to pump out the extra current. Again, ensure that you do not fry eggs over the amp and that you risk thermal meltdown.

Using bass control and reduce all speakers. This allows the starving bass to be fed to your driven subwoofer and thus maintains the dynamic range of the internal receiver amps.

What additional requirements are applicable to your speakers?

While a certain loudspeaker can be rated to 4 ohms, it can actually provide an amplifier with more stable load than another 8 ohms rated ladder. This is due to the inductive nature of the loudspeaker systems. The impedance of a speaker varies according to the frequency. An unsuitable loudspeaker can have bad impedances at certain frequencies. This will cause an amp to oscillate if it becomes too troublesome. Typically a well-built 4 ohm speaker system provides an amplifier with a better load than an 8 ohm speaker with a bad design.