March Audio Sointuva AWG Stand Mount Speakers

We are very excited to represent an update to March Audio's award winning Sointuva WG speaker.  The new AWG variant now features Purifis’ incredible PTT6.5W04-NAA-07 aluminium woofer which provides even lower bass extension and distortion compared to the previous fibre/polypropylene variant previously used in the WG.  March Audio have also improved and further optimised the crossover providing a more linear frequency response and smoother sound power.

Sointuva is a Finnish word meaning “musical harmony” and March Audio believes this very aptly describes the performance of the Sointuva AWG speaker.

The design objective was to produce a speaker that is moderate in size yet possessed exceptionally deep and warm bass, with sweet crystal-clear high frequencies and very low distortion.

The stunning performance and sound of the original Sointuva WG culminated in winning Sound And Visions “Best Standmount Speaker 2023” award.  The new Sointuva AWG refines this amazing performance and sound still further.

Technology

To achieve this objective we investigated and tested a great number of drivers, but none came close in performance to the Purifi PTT6.5W04-NAA-07.  This driver is a 6.5” driver that truly cracks the extended-stroke code. PURIFI’s research has identified the parameters that have so far prevented extended stroke drivers from breaking through in truly high performance audio.

Purifi has taken care to optimize the various distortion mechanisms separately, thus guaranteeing that any measured improvement truly reflects a real audible improvement no matter what the signal is. Accurate mathematical models are developed for the motor, suspension and the vibro-acoustics of the dome and surround. These models clearly explain several distortion mechanisms in each domain, which provides fundamental insights into better ways of constructing the motor, cone and suspension. Finally, the same models are used to numerically fine-tune the geometry. This way of working reliably reduces multiple distortions mechanisms which secures low IMD for complex signals.

The combination of the above characteristics results in a compact long-stroke driver that delivers complex sound with a clarity and lack of effort that was previously the exclusive province of large-cone short-stroke drivers. Additionally, thanks to the small cone size, the driver has excellent midrange reproduction.

Dual Purifi PTT6.5PR-NF1-01 passive radiators are used to on the rear of the speaker to extend the low frequency response.  They also eliminate some of the problems associated with ported designs such as port noise.  They provide the tightness of bass associated with closed boxes with the added extension of ported designs.

These small speakers behave like much bigger devices and the anechoic low frequency response is only -3dB down at 37Hz.  This equates to an in room response that reaches well below 30Hz. This extended response negates the need for a sub woofer when used with music.

To complement the exceptional performance of the Purifi woofer we needed an exceptional tweeter.  The SB Acoustics Satori TW29BNWG Beryllium Dome Tweeter fitted the bill perfectly. Sweet and detailed with exceptional clarity and very low distortion.