More worryingly for WiiM, the Stereo 70s contrasts the AMP Ultra as sounding thinner and tonally greyer when playing Was (Not Was)’s “Wheel Me Out”; and the Marantz soounds less strident in the upper ...

Integrated optical amplifier is a key component for the development of large-scale integrated optical systems. Here we propose and demonstrate an integrated broadband optical parametric amplifier by ...

The MTI100 Sun Records Limited Edition turntable comes with a Sumiko Olympia Moving Magnet cartridge and two vacuum tubes.

McIntosh’s MTI100 isn’t your average turntable — it’s better, more beautiful, more versatile and definitely more expensive. Released in early 2019, the MTI100 is unique because it’s integrated with a ...

This isn't the first time we have seen an amp brand team up with Two Notes to modernise their tube amp designs. In 2019, Revv unveiled the D20, the world's first amp head equipped with Two Notes ...

Quad has unveiled its latest integrated power amplifier, the Quad 3. Following the launch of the two-box 33/303 amplifier pair, which revived classic models from the 1960s with a fresh outlook, the ...

An active network with the property that the impedance on a terminal pair is negative is called as a negative impedance, and many active circuits, such as amplifiers, filters and oscillators, contain ...