NEWS: Martin Logan develops the world's first fully active electrostatic speaker

US-based speaker specialist Martin Logan has unveiled what it claims is the world's first fully active hybrid loudspeaker. The £2090 Purity model (above) has a built-in 200W digital power amplifier, meaning that no external power amps are needed to drive the speakers.

And because the Purity has a line-level input, it can be connected directly to any line-level source component with its own volume level control, such as an iPod/portable media player, flatscreen TV, PC or CD player with output controls.

Alternatively, the Purity can be used in a conventional hi-fi separates system by connecting the speakers to a separate preamp. Or if you wish to bypass the internal amplification, you can connect them to an external power amp at speaker level via the supplied binding posts, just like a conventional speaker.

For those who want an affordable electrostatic speaker design without internal amplification, Martin Logan now offers the £1599 Source.

Unlike conventional cone/dome speakers, electrostatic designs incorporate a thin electrostatic panel that is charged with electric current to vibrate the air.

Both the Purity and the Source share the following technology:

  • CLS Generation 2 electrostatic panel
  • MicroPerf stators
  • AirFrame technology
  • High-rigidity, high-excursion woofer
  • Vojtko crossover
  • Dipole sound radiation
  • Tool-less binding posts
  • Adjustable base and spikes
  • Choice of dark cherry or black finishes
  • In addition, the Purity has an internal 200W amp, low-distortion aluminium-cone woofers and +/- 3dB bass control.
  • Both models are distributed in the UK by Absolute Sounds (0208 971 3909).
Andy Clough

Andy is Global Brand Director of What Hi-Fi? and has been a technology journalist for 30 years. During that time he has covered everything from VHS and Betamax, MiniDisc and DCC to CDi, Laserdisc and 3D TV, and any number of other formats that have come and gone. He loves nothing better than a good old format war. Andy edited several hi-fi and home cinema magazines before relaunching whathifi.com in 2008 and helping turn it into the global success it is today. When not listening to music or watching TV, he spends far too much of his time reading about cars he can't afford to buy.

Latest in Speakers
Fyne Audio F502S
Fyne Audio's mid-range F500S speakers aim for serious increases in sonic performance, not price
Neat Iota II speakers in white
Neat Iota II are ultra-tiny speakers with big ambitions and are ideal for small spaces
Apple HomePod 2 vs Apple HomePod
The affordable iPhone 16e is all well and good, but where's my new HomePod, Apple?
Piega Premium 701 Gen 2
Piega's latest loudspeaker duo teases cutting-edge performance no matter where you put them
Bowers & Wilkins Zeppelin Pro Edition wireless speaker
The B&W Zeppelin Pro Edition makes a glaring omission – but it doesn't detract from its five-star performance
Fyne Audio F501E floorstanding speakers
Fyne Audio F501E
Latest in News
Musical Fidelity B1xi
Musical Fidelity's new stereo amplifier houses HDMI ARC and a built-in phono stage
A close-up of the FiiO FT7 headphones' earcups.
FiiO's FT7 flagship headphones take the fight to pricier rivals
A grey WiiM Vibelink Amp on a wooden cabinet between two bookshelf speakers.
The WiiM Vibelink Amp is WiiM's first integrated amp with no streaming elements
Q Acoustics 3050i
Save £650 on this five-star Q Acoustics 5.1 home cinema setup
Optoma Photon Go on white background
Optoma's new on-the-go projector is set to be one of the cheaper USTs on the market
Marantz Cinema 30 AVR
Our Award-winning reference Marantz AVR is still selling at its best price ever