Amazon has added Echo Link and Echo Link Amp to the list of its Alexa compatible Echo devices. The two new products are designed to upgrade a home stereo system with voice control functionality. The Echo Link is made for the users who already have and audio or AV receiver, while the Echo Link Amp, provides the whole package, adding a 60W, 2-channel stereo amplifier to the same DAC found in the smaller device. They don’t come with a microphone to summon Alexa, though, as the idea is still that the function would be provided by an existing Amazon Echo or Echo Dot connected to the Link or Link Amp through line-in input. In other words, the two devices are meant to deliver higher quality sound than what would be achievable by simply connecting an Echo or an Echo Dot to a generic audio receiver. The target for Echo Link (£190) and Echo link Amp (£290) is the lower tier of the audiophile market. They’re currently available in the UK, Germany, Japan, India, Canada, Australia and New Zealand.