Unfortunately, we cannot recommend any specific brand of amplifier to use with our Residential products as a matter of company policy, however, we hope the below information will help guide you in your decision. We also recommend consulting your local Hi Fi dealer who will be able to provide additional information on this subject.We recommend that you check the specifications of both the amplifier and loudspeaker to ensure they are compatible paying close attention to power rating and impedance values. In general it is easier to damage a loudspeaker with an under powered amplifier driven into clipping distortion, than with a high power amplifier with headroom in reserve, and used responsibly. The specification in your Instruction Manual will give some guidelines.Remember, human hearing is roughly logarithmic, and to double subjective loudness requires a 6dB rise in sound pressure level (SPL), meaning that the amplifier power must be quadrupled. So all things being equal, a 60W amplifier wont sound any louder than a 50W amplifier.Having sufficient output power depends on the size of your room, the sensitivity of your speakers, and how loud you like to listen. More information on this, and some thoughts on amplifier design philosophy can be found in our white paper, which you can request by getting in touch with us here.