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ElectroTos

New digital audio interface and protocol

Backwards compatible with Toslink interface and S/PDIF protocol. Our new electro-optical digital audio interface and low jitter protocol eliminates -unwanted- jitter in digital audio source, digital audio interlink, and all DAC circuits even when significant crosstalk is present. It has to be generated directly by software (UPL96ETL and U192ETL).


U192ETL

USB transport with ElectroTos/Toslink interface and low jitter ElectroTos protocol

Backwards compatible with Toslink interface and S/PDIF protocol. Supports asynchronous USB audio Class 2, 44.1/16 to 192/24. Based on XMOS XU208. Low jitter system and audio clocks, 24MHz, 22.5792MHz, 24.576MHz. Each oscillator has separate RF supply noise filtering. Advanced synchroniser / driver circuit for XMOS jitter attenuation. USB bus powered (5V).


UPL96ETL

Very clean USB memory stick -reference- transport with ElectroTos/Toslink interface and ElectroTos low jitter protocol.

Backwards compatible with Toslink interface and S/PDIF protocol. PC app for controlling the UPL96ETL over USB. Supports WAV files using ID3v2.3.0 metadata with jpeg/png cover-art. User interface with CD display on USB memory stick and lookup/seach in all CDs on all USB memory sticks that have metadata imported previously. Supports 44.1/16 to 96/24. Based on STM32 ARM. Low jitter system and audio clocks, 24MHz, 22.5792MHz, 45.1584MHz, 24.576MHz, 49.152MHz. Each oscillator has separate RF supply noise filtering. Advanced synchroniser / driver circuit for jitter attenuation. USB bus powered (5V).


DA96ETF

Discrete, ultra low noise multi-pattern fractal DAC with ElectroTos input.

The DA96ETF pairs with U192ETL or UPL96ETL, these support the ElectroTos low jitter protocol. Note: the DA96ETF does not support standard Toslink protocol, it will only produce noise when attempting to drive it with standard Toslink sources. Sample rate support: 44.1, 48, 88.2, and 96 KHz. Bit depth: automatic (ElectroTos protocol). Standard digital audio protocols are no longer used / generated anywhere in the DA96ETF. D/A converter type: Fractal multi-pattern converter, 32 bit core / channel (this type of converter is -completely- different from all existing audio D/A converters). Fractal multi-pattern converters offer extreme long term accuracy (with given component tolerances), low output impedance (375 OHms), and extremely low digital interface switching noise because of the parallel data interface (highest switching frequency equals the sample rate / ELE latch signal). System: unfiltered NOS (fully passive output circuit). By using 88.2 or 96 KHz, 2 x oversampling can be obtained. Included power supply: external, 5V/100mA (4.8 ... 5V5), connection USB-B (large).


SVC24

Passive stepped volume attenuator.

Manual operated 24 step volume attenuator for our DA96ETF.


SVC24U

Passive stepped universal volume attenuator.

Manual operated 24 step universal volume attenuator for existing DACs.


SHPB10

High resolution headphone amplifier using a large bandwidth servo system to drive the headphone speakers.

The high resolution headphone amplifier uses a servo system that produces no cross-over distortion at all and consumes constant power (power ratio method). The speaker distortion basically vanishes and offers the most realistic detailed high resolution music reproduction.


OBS100

Active open baffle speaker based on a servo amplifier.

The OBS100 is an active open baffle speaker that is based on a servo amplifier, similar to the one used in the SHPB10. The OBS100 senses and corrects speaker membrane movement. The ac voltage generated by the voice coil is used as feedback signal for the servo. The result is much lower overall distortion, higher resolution and compensation for voice coil temperature changes and related distortion. The servo amplifier soft clips similar to a tube amplifier. The audio spectrum is mainly reproduced by one 8" full range speaker that acts as point source, this helps to get clean coherent music reproduction. Two large 15" bass speakers only support the lowest frequencies below 100Hz. The servo ensures that bass reproduction is unexpectedly good for an open baffle speaker. The OBS100 offers realistic music reproduction and high resolution.


Connections

Howto connect our audio components to each other, and howto connect them to existing audio components.

Our audio components are designed to perfectly complement each other. Using one of our transports in combination with our DAC, volume attenuator and headphone amplifier or our active open baffle speaker will produce music instead of sound. With this combination you can exactly hear what we hear and enjoy music like never before, just like we have for the last couple of months.
Apart from buying a whole set you could also start with improving your current setup. Our two transports can be used with any DAC equipped with a Toslink input, the UPL96ETL and the U192ETL will introduce you to ElectroTos technology and could already improve sound quality significantly. Also our SVC24U stepped volume attenuator and our SHPB10 headphone amplifier / OBS100 active open baffle speaker could also be a big improvement in sound quality with existing audio components. Check out the connection diagram below to see how to connect our audio components to each other, or howto connect them to existing audio components.

When connecting our U192ETL or UPL96ETL transports to an existing Toslink DAC make sure to disconnect all other inputs from the DAC !