Weiss DAC502-4Ch "Mk2"

Weiss DAC502-4Ch "Mk2"

The powerhouse in a new version - the ultimate network renderer, DAC and headphone amplifier in a compact housing, DAC502-4Ch, with DSP for EQ and room correction on board, now with 4 Channels.

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Color: silber
€12,550.00
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ACCURATE AND FLEXIBLE

The DAC502-4Ch is not only one of the best converters on the market, providing an accurate and sensitive representation of the music.

It also includes user-configurable settings from room EQ to de-essing and crosstalk attenuation, loudness and vinyl emulation.

HIGH CONNECTIVITY

The DAC502-4Ch has digital inputs in numerous formats and both balanced and unbalanced analog outputs. All common sampling frequencies up to 384 kHz as well as DSD x64 and x128 are supported.

The device also functions as a preamplifier, headphone amplifier and streamer (UPnP/ROON).

 

The DAC502-4Ch also integrates seamlessly with the JPLAY iOS app - so you can enjoy your favorite tracks from Qobuz, Tidal and your local collection in a single library.

PRODUCT COMPARISON

The DAC501(-4Ch) and the DAC502(-4Ch) are identical, apart from the fact that the latter has a larger housing and an additional 4-pin headphone socket on the back of the device. Both models are available in aluminum or black.

WHAT ARE THE 4 CHANNELS FOR THEN?

The simple explanation is that the new DAC chip itself supports 4 channels. This alone leads to an improvement in the stereo signal, as 2 DAC channels can simply be used for one signal channel each, and only the better signal is output after an internal comparison.

Since the main difference in the new version is this module here, plus the matching software, any 501/502 can also be upgraded to the 4Ch version.

Weiss also asks themselves: what else is possible?

Note: These are not current functions of the DAC, but could be added later via a software update if there is enough interest!

  • 2 channel front speakers, 2 channel rear speakers for surround playback. This setup adds another pair of speakers at the back for an enveloping sound.
  • 2 channel front speakers, 2 channel front speakers at a different angle. A very interesting setup for a more enveloping sound. Based on a design by the Swiss audio company “Pawel Acoustics”.
  • 2 channel front speakers, 1 channel front center speaker, 1 channel subwoofer. In early stereo times there have been made 3 channel recordings with left, right and center channels. The center channel is of great use for a realistic reproduction. The fourth channel can be configured to feed a subwoofer speaker.
  • 2 channel front speakers, 2 channel subwoofers. For a decent full range system, based on satellites and subwoofers, the use of a stereo instead of a mono subwoofer is advantageous.
  • 2 channel front speakers with crosstalk cancellation, 2 channel rear speakers with crosstalk cancellation. Crosstalk Cancellation (XTC) means that a pair of speakers becomes kind of a headphone in that the left speaker only reaches the left ear and the right speaker only reaches the right ear – similar to a headphone. This has the effect of generating a huge soundstage in front of the listener with a very life-like reproduction of a life recording. By adding a second pair of XTC speakers at the back an enveloping life-like scenery can be achieved.
  • 2 channel headphones type A, 2 channel headphones type B for two persons listening simultaneously with two different headphone models. Allows two persons to listen to the same music program each with his/her own set of headphones and signal processing.

Some more “exotic” ideas which need some refinement in the design process:

  • 2 channel front speakers, 2 channel front elevated speakers. Another way to generate a more live – like sound with a sound stage which extends to the space above the listener. Similar to a concert hall speaker setup.
  • 2 channel front speakers, 2 channel headphones for simultaneous listening via speakers and headphones. With extremely open headphones it is possible to listen to speakers and headphones simultaneously. This makes for a new listening sensation not experienced before.

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DIGITAL INPUTS

The DAC502-4Ch has a total of five digital stereo inputs:

  • • AES/EBU or S/PDIF via XLR, Toslink and RCA sockets.
  • • UPnP/DLNA via Ethernet.
  • • USB.
  • • Roon Ready.

Accepted formats: PCM 44.1kHz up to 384 kHz, DSD 64x / 128x.

ANALOG OUTPUTS

  • • Line out unbalanced on RCA connector.
  • • Line out balanced on XLR connector.
  • • Headphone out on 1/4" jack
  • • Headphone out on 4-pin XLR
  • Discrete output stages for both line and headphone outputs are employed.
  • The output levels can be set in a coarse manner with four steps to adapt for the amplifier or headphone connected. The levels can be set independently for line and headphone outputs.
  • No sound degrading servo mechanisms are used.

DIGITAL SIGNAL PROCESSING

The DAC502-4Ch uses a built-in digital signal processing (DSP) chip for its audio processing. These algorithms are included: 

• Room Equalizer - to suppress room modes for more accurate bass reproduction.

• Creative Equalizer - a tone control with low boost/cut, high boost/cut, and mid boost/cut. Very useful to correct those recordings which do not quite sound right.

• De-Essing - the automatic removal of overly bright sibilances from human voices. The sibilance effect can be more or less pronounced depending on your speakers or room acoustics.

• Constant Volume - adjusts the audio volume (loudness) to a constant value across all tracks played. Useful for "party mode" when the volume control should stay untouched.

• Vinyl Emulation - get that special sonic character of a record player based playback chain. We also employ an emulation of the DMM-CD procedure offered by the Stockfisch label.

• Crosstalk Cancelling (XTC) - for the playback of dummy head recordings or live recordings via speakers for an incredible live sensation. Dummy head recordings usually are listened to via headphones because they only work properly if the left channel goes to the left ear only and the right channel to the right ear only. With speakers this is difficult to achieve as the left channel goes to the left and the right ear. But with some clever signal processing of the speaker channels is is possible to suppress the crosstalk, i.e. the audio going from the left speaker to the right ear and vice versa. If that works properly then the recording sounds as if one would be in the space where the recording has taken place. All the reverberation and 3D representation of the sound sources is there.(For speaker based playback only.)

• Loudness Control - a listening volume dependent equalization of the audio.

• Headphone Equalizer - to adapt any headphone to the listener's ears in terms of frequency response.

• Crossfeed - to emulate a speaker based playback impression on headphones.

FRONT PANEL CONTROLS

  • A rotary encoder knob for changing parameters and for powering the unit on/off.
  • A touch screen colour LCD display.
  • An 1/4 inch headphone socket.
  • An IR receiver.

BACK PANEL ELEMENTS

• Analog outputs on XLR and RCA connectors.

• Digital inputs on XLR, RCA, TOSLINK, USB, and Ethernet connectors.

• USB type-A connector for various applications.

• Mains connector with fuses.

DIMENSIONS

DAC501

  • Depth: 30 cm / 11.8 inches
  • Width: 45 cm / 17.7 inches
  • Height: 6.6 cm / 2.6 inches
  • Height with feet: 7.4 cm / 2.9 inches

IR Remote Control

  • Depth: 2.1 cm / 0.83 inches
  • Width: 4.5 cm / 1.78 inches
  • Height: 16.6 cm / 6.53 inches

POWER SUPPLY

A powerful non-switching power supply is used. All sensitive voltages have their own regulators which are separated between left and right channels. The result is an analog output free of "digital noise" and channel crosstalk.

The power switch activates a semiconductor relay which only switches on or off at zero crossings of the mains voltage. This assures a glitch-free power switching. The two mains transformers are toroidal types.

Mains voltage selection is done automatically by measuring the mains voltage before power is applied to the rest of the electronics.