Waversa Systems' Multi-Layer Energy Transfer (WMLET)


Industry Expert
Feb 29, 2016

*Full-Balanced WE408A Western Electric V DAC by Waversa Systems - the original WMLET Technology application.

Channel separation technology for the audio frequency range (WMLET – Waversa Multi-Layer Energy Transfer)

Waversa Systems has introduced two unique technologies that make optimal use of the ES9038PRO’s 32-bit 8-channel Digital to Analog conversion capabilities. One is a source estimation algorithm that operates at 32Bit / 1.5MHz. The other is Range Separation Technology (WMLET).

Figure 4: Waversa Multi-Layer Energy Transfer (WMLET) bypassing ES9038PRO input and oversampling filter stages

Rather than using the commercially available ES9038PRO chip as designed, D/A conversion is the only function of this chip in Waversa’s setting. The circuits of the ES9038PRO input and oversampling filter stages are bypassed and a fundamentally different processing algorithm is applied within the in-house designed Waversa Audio Processor. The WAP data stream is then passed on to the ES9038PRO by another key processing technique: Range channel separation technology (WMLET-Waversa Multi-Layer Energy Transfer).

As the transfer technology’s name implies, the auditory frequency band is divided into high, mid-high, mid-low, and low ”layers”, bands, at the digital stage for each of the left and right channels, then passed through all eight channels of the ES9038Pro for processing. Instead of 8 channels, in conventional signal processing only the left and right channels are processed together and more energy is concentrated in the mid-band. To prevent this, WMLET regulates the energy distribution evenly across four channels per frequency band and creates a band balance that cannot be felt with conventional DACs. Distortion caused by energy bias is reduced, revealing subtle musical elements that are otherwise unrealized. This approach to digital processing is unique to Waversa products.

  • The energy concentrated in the mid-band is evenly distributed, and the band balance is excellent.
  • The resolution increases with each band, taking advantage of the nuances of band separation and creating a more natural presentation of music.
  • Implementation of a wider music signal dynamic range and broadband frequency reproduction.
  • A natural balance of the sound can be maintained, and the original quality of the tone is maintained.

Waversa Multi-Layer Energy Transfer (WMLET) is currently implemented in WVDAC, WDAC3T, and the WDAC3C. ("T" - Tube, "C" - Compact)


Well-Known Member
Jan 8, 2014
Hi There, you wrote about bands, is this meant as Frequence bands like bass, midrange and high frequency? Englisch is not my mother language And I'm not so ultra deep in DAC Technology, but I want to understand it :)
Best Armin


Industry Expert
Feb 29, 2016
Armin, you are correct. Think of it as multiple cores in a CPU. Waversa tasks each distinct channel for a specific task. Eight channels allows for individually processing 4 defined frequency bands per channel.

About us

  • What’s Best Forum is THE forum for high end audio, product reviews, advice and sharing experiences on the best of everything else. This is THE place where audiophiles and audio companies discuss vintage, contemporary and new audio products, music servers, music streamers, computer audio, digital-to-analog converters, turntables, phono stages, cartridges, reel-to-reel tape machines, speakers, headphones and tube and solid-state amplification. Founded in 2010 What’s Best Forum invites intelligent and courteous people of all interests and backgrounds to describe and discuss the best of everything. From beginners to life-long hobbyists to industry professionals, we enjoy learning about new things and meeting new people, and participating in spirited debates.

Quick Navigation

User Menu

Steve Williams
Site Founder | Site Owner | Administrator
Ron Resnick
Site Co-Owner | Administrator
Julian (The Fixer)
Website Build | Marketing Managersing