Metrum Acoustics JADE DAC +USB +Digital Preamplifier

You can purchase this product in installments with Consel. Click here for more information.


New product

2 454,92 €

This article it's not in stock but can be ordered and it will take a number of days indicated into the Blue tab below, to be shipped to you. Please verify the availability for immediate shipping of other eventual versions of the same product.

 
Description

What more can you do after launching one of the best dacs and Digital (Pre) Amplifiers available today? We are aware that our current flagship products Pavane, Adagio and Forte are hard to beat but at least one idea was not realized yet.

The idea of having similar high end sound like the ADAGIO but in an affordable version!

Introducing JADE by Metrum Acoustics, a powerful Digital Pre Amplifier which in sound comes close to our ADAGIO,

The biggest difference between the ADAGIO and JADE is the fact that the JADE uses two DAC chips per channel, whereas the ADAGIO uses 4 Chips per channel. Both ADAGIO and JADE use Forward Correction Technology and are following the working principle of being a Balanced Digital Pre Amplifier. Needless to say that we use Non Oversampling as that is our “Forte”. Our own designed and engineered DAC chips will guarantee a unique listening experience!

Like our ADAGIO, “forward correction” techniques are used to drive both mono dac boards. The result of this process is an extremely high linearity, right down to -140 dB, which gives the JADE a realistic 24 bit dynamic range. The JADE is a step forwards as it omits a pre-amplifier. It is musical, honors the Non-oversampling principle and simultaneously incorporating the technological progress that has been made over the years while developing our products.

Introduction to the DAC TWO chip

It was an unprecedented challenge, which was eventually solved by using an entirely new chip, which has been exclusively developed by Metrum Acoustics and was first used in the PAVANE.

The parallel driven R2R ladder networks as used in the four DAC modules performs , especially when combined with our FPGA-driven “forward correction module”, on a higher level. This module splits up the audio samples for each channel into new separate data streams. Each dac cluster processes a portion of the data in the most linear region of the dac chips. The result of this process is an extremely high linearity, right down to -140 dB, which gives the JADE a realistic 24 bit dynamic range. Due to the dual mono design over the entire frequency range an extremely high channel separation of 120 dB is realized. This contributes to the flawless positioning of instruments.

In short, the JADE is a DAC that has taken all the lessons and experiences that her designer has learned over the years, and combined them in an ambitious DAC that can fit in every system. It is musical, honors the Non-oversampling principle while simultaneously incorporating the technological progress that has been made over the years.

As a result music will be more exiting as details on very low levels will be audible. The JADE can meet the best systems today in terms of sound quality as it borrows all the good things from our top models Pavane and Adagio. 

High resolution linearity plot of DAC TWO (please see image "1000 step linearity plot DAC TWO module"). The analyzer is struggling to show us the last bits down to -140 dB. In case more bits are involved the steps are shrinking and more resolution is available. This extreme linearity is realized by our forward correction techniques and improves reproduction of the lowest musical details.

Still people do not realize the size of our dac modules (please see image of the DAC TWO on a credit card). For instance the Transient DAC TWO module has two R2R ladders, an FPGA and the I/V section under the hood. About half the size of a credit card and nothing to add except power and data. How simple can it be :-)

Just a note to discrete R2R ladders and why they cannot work properly (see
resolution table image):
1 no more accuracy than 0,01% so not more than 14 bits precision.
2 Too much temperature differences over the entire pcb leads to linearity problems.
3 Sensitive for pollution and humidity.

Therefore we only use lab grade laser trimmed ladder networks to get perfect
linearity and real 144 dB dynamic range. Next they should be encapsulated to
avoid mutually temperature changes and pollution. This table tells everything
but also tells you that more than 24 bits at the analog side is an Utopia due
to Johnson noise. Do not be fooled!!

How important proper signal routing is in case of mixed disciplines both analog and digital on one pcb. Further proper star ground can avoid any hum. Look at the picture named "New Generation DAC TWO proto dac board": DAC TWO used on a new proto board. An 882 Hz test tone at -90 dB is used but no rests of 50/100Hz is visible.

Specification:

  • Working principle: balanced Digital Preamplifier with DAC ;24 bits non oversampling; Forward correcting technology; 2x DAC TWO modules per channel
  • MQA Module: optional
  • Power: 15 VA toroidal transformers
  • Mains voltage: AC 220/230V AC 60/50Hz
  • Input: 1x optical, 1x AES/EBU 1x coaxial and USB
  • Output: RCA : 1x stereo pair single ended; 1x stereo pair XLR balanced
  • Frequency response: 1Hz – 20 khz -1dB. 44.1 kHz sampling; 1Hz – 65 kHz -1dB .192 kHz
  • Distortion: 0.006 % THD
  • Noise floor: -145 dB related to 2 Volt RMS
  • Output impedance: RCA 100 Ohm; XLR 100 Ohm
  • Sampling rate: Optical 44.1 – 96 kHz; Coax and AES/EBU 44.1 -192 kHz; USB 44.1 -384 kHz
  • Output Voltage: RCA Max. 3 Volts RMS; XLR Max 6 Volts RMS
  • Dimensions: 290 x 250 x 60 mm
  • Weight: 3.1 kg

 
Designer

Metrum Acoustic at a glance

All Engineering (AE) is a company with a history of innovation in many fields within the world of electronic design. In the audio industry AE is primarily known today for its brand Metrum Acoustics. In the electrostatic speaker field their experience dates back to 1989 and gradually over time broader electronic applications have evolved. 

A diverse range of acoustic system products have been created during this period, always relying on sound electronic design principles. Digital signal processing has played a significant role in more recent developments. 

In hi fidelity audio AE’s attention was initially drawn to the limited availability of certain componentry. Established manufacturers supplying these key components decide how signals should be processed. No alternatives are available and therefore this greatly influences the sound image that is realised.  

Current trends among manufacturers are to use the technique of ‘oversampling’ or ‘upsampling’ within the digital to analogue chipset itself. This forces designers to utilise this method of signal conversion for their own products. It also means that many brand systems use the same building blocks and consequently sound the same. The sound images created by such systems can actually betray the componentry that has been implemented.

These sampling techniques were introduced to fulfil the need ‘to smooth’ the conversion process from digital to analogue and prevent phase distortion. Particularly during the years following the introduction of CD replay, conversion methods proved insufficient with regard to sonic artefacts. In response strong filtering methods were employed and the oversampling technique was born. These techniques however had disadvantages which manifest themselves for example in areas of transient response.

Today there is a growing view that ‘non oversampling’ or NOS for short, offers many benefits but without the compromises mentioned above. AE dedicated considerable time and attention to researching the NOS premise and found its audible benefits valid up to a certain point. 

The question then remained how to remove these sonic artefacts without resorting to oversampling. This question was answered by the first product  made by AE  the NOS mini DAC  Quad, a digital to analogue converter designed and manufactured with modern high speed industrial grade chipsets,  free from most of the disadvantages of the past.  These techniques are improved over time and used over the entire range of products. The most important result is the  sound, which was never so close to the analog origin.

Write a review

Metrum Acoustics JADE DAC +USB +Digital Preamplifier

Write a review

 
Questions

26 other products in the same category:

Availability

Products availability:

  • Silver

    This product can be ordered and will be shipped within 8 days. Also see the Availability tab and eventual options of the same product.

  • Black

    This product can be ordered and will be shipped within 8 days. Also see the Availability tab and eventual options of the same product.


  • Available for immediate shipping.

    Product is available.
  • This product can be ordered and will be shipped within a certain number of days.

    Product is available to be ordered and will be shipped within the specified days.
  • This product is out of stock. The product is not available to be ordered. It could be incoming and to be email informed when it will be available for ordering, please click on "Email me when available" or contact us.

If a product is available an insufficient quantity, the system will not let you finalize the order, so in this case please contact us to know the future date when more quantities will be available.
Product availability is real-time updated and correspond to our actual stock quantities (Green) or to estimated obtainability times (Blue); in the case of (Blue) products, although the specified times are a realistic and conservative estimate, have to be intended as indicative and not as a binding obligation.

If you place an order containing both readily available products (Green) together with products that will make available within the indicated number of days (Blue), will be shipped alltogether when all product types are into our wharehouse; if you’d like we immediately ship the in-stock articles, it’s better that you place a separate order, or contact us.

When your order is shipped, we send you an email containing all details to track it.

For any further information please contact the Customer Service, available from monday to friday (hours: 9-13 / 15-17).

Menu