When it comes to valve amplifiers, power outputs of around 30W to 50W tend to be the norm. In some instances, this figure might rise to around the 100W mark. But Audio Research’s new Reference 330M ...

At $2,199, the TEAC AP-507 power amplifier can be configured for two channel stereo, bi-amp, or bridged. The TEAC AP-507 is primarily designed to be a companion to the above-mentioned previously ...

In the case of a preamplifier it will usually be designed to work with high impedances in the order of 50 kΩ at both input and output, while in a power amplifier designed to drive speakers or ...

At $1,999, Orchard Audio Valencia is a balanced desktop power amplifier designed for headphones, but powerful enough for speakers. Having just driven past an orange grove in Florida earlier this week, ...