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Metrum Acoustics Musette DAC 24/384K non-oversampling +USB [2nd hand]

Metrum Acoustics Musette DAC 24/384K non-oversampling +USB

Metrum Acoustics Musette DAC 24/384K non-oversampling +USB [2nd hand]

Reference:

1524u

Condition:

pre-owned

Second hand product in excellent condition, without original packaging and 1 year warranty.

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€539.00 (tax incl.)

Available for immediate shipping.

Quantity

Brand:

Metrum Acoustics

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Description

In order to improve upon the Octave we stopped looking towards our secret industrial chip, and instead implemented our new Transient technology as used in our flagship Pavane. The Musette is designed on the same basic frame as used for the Octave but to get more flexibility, both front and back panel have been changed as one more digital input is added.

The Musette is using two Transient R2R ladder Dac One modules as used in the Pavane. These modules can handle extreme high sampling rates but are limited to current industry standards which has its maximum (384kHz) on the USB input. The result of this process is an extremely fast and accurate behavior and brings listening experience on a much higher level . Despite the fact that both dac modules are build on the same board an extremely high channel separation of 100 dB is realized. This contributes to flawless positioning of instruments. In other words, a DAC we are rightly proud of.

Specifications:
Caratteristiche tecniche:
- Working priciple: Non oversampling dac based on Transient technology
- Power: 15 VA transformer. Average power 5 Watts , standby < 1 Watt
- Mains voltage: 110/115V AC 220/230V AC 60/50Hz
- Inputs: 1x optical Toslink, 2x RCA coaxial and 1x USB
- Outputs: 2x RCA
- Output voltage: 2 Volts RMS
- Frequency response: 1Hz - 20 khz -2.5 dB. 44.1 kHz sampling / 1Hz - 65 kHz - 3dB .192 and 384kHz (USB)
- Distortion: 0.007 % THD
- Noise: -140 dB related to 2 Volt RMS
- Output impedance: 100 Ohms
- Sampling rate: Optical 44.1 - 96 kHz sampling rate / Coaxial 44.1 -192 kHz / USB 44.1 - 384kHz sampling rate
- Dimensions: WxHxD 190 x 60 x 245 mm.
- Weight: 2 kg.

Background information

- Non-oversampling Digital filter-less DAC Concept by Ryohei Kusunoki

- Manifacturing and testing the mini dac

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Product Details

Reference 1524u

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.

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