Less is More,
relax and enjoy the music
with our Mosaic UV, Cube SE and No-Box OB
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USB DAC
Mosaic UV

  • Discrete 24 bit Mosaic multibit DAC
  • UAC1 44.1 kHz - 96 kHz
  • Passive volume control with optional IR remote
  • Headphone buffer
  • Bit perfect test
  • Integrated linear power supply
  • RCA sockets variable + fixed output

Affordable top performance USB DAC

With the introduction of digital music in 1982 we were promised music without crackles and without noise, true, but it soon became clear that something was missing. The music was clean but had lost all musical involvement. In 2002, we decided to develop audio equipment that could retrieve this musical involvement. After many prototypes and products, we managed to retrieve this musical involvement in our Mosaic UV multibit USB DAC.

The Mosaic UV multibit USB DAC contains our new discrete digital to analog converter using a passive resistor matrix to produce the analog output signal.

We developed our own microcontroller firmware solution for the USB to Mosaic conversion. We got rid of I2S all together and reduced the complexity of the USB to Mosaic conversion to a bare minimum. The whole system runs on a single XTAL.

The result is a DAC that sounds extremely quiet, incredibly musical and very accurate. When we started with our minimal design we could never have imagined it would sound so good. As it turns out Less is More, The Mosaic UV, an affordable top performance USB DAC.

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AMPLIFIER
Cube SE

  • MOSFET amplifier
  • Single ended
  • No global feedback
  • 300B alternative
  • 10 W RMS
  • Output impedance 0.4 Ohm
  • Drives speakers of 4 Ohm and up
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A modest amplifier with a big sound

The flawless reproduction of even the smallest details, optimal control over the lowest bass and uncolored reproduction of the entire sound spectrum requires a special approach in the design of an amplifier. We looked at the design solutions that have already been applied in the first tube amplifiers but paid particular attention to preserving the musical character of these amplifiers.

In order to reproduce even the smallest details we must prevent any crossover distortion and for this we use a simple single-ended MOSFET design. In order to preserve the musical character of these first tube amplifiers we can not use global feedback. The final design is amazingly simple and again Less is More. The Cube SE, a modest amplifier with a big sound.

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SPEAKERS
No-Box OB

  • Open Baffle
  • Single point source driver
  • Two woofers for low-end
  • Cross-over frequency 200 Hz
  • Passive filtering
  • Impedance 4 Ohm - 32 Ohm

Open baffle speaker with an unbelievable natural sound

From diy speakers, omni-directional speakers to bass-reflex speakers we tried them all. In the end we found that open-baffle speakers that were used in old tube radios and even now in guitar amplifiers somehow sound best. With new developments in speaker drivers we are now able to use a point source driver to produce everything above 200 Hz. By using two big woofers for the low-end we are rewarded with a very natural and uncompressed bass reproduction.

Building an open baffle speaker looks easier than building a closed cabinet speaker. Unfortunately getting the passive cross-over right is much harder and took a long time to get right. The No-Box OB, Open baffle speaker with an unbelievable natural sound

Although the No-Box OB development has been completed, it is not in production yet.

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