Cambridge Audio DacMagic Plus

Cambridge Audio DacMagic Plus

Digital to Analogue Converter

Cambridge Audio DacMagic Plus
Cambridge Audio DacMagic Plus
Cambridge Audio DacMagic Plus
Cambridge Audio DacMagic Plus
Cambridge Audio DacMagic Plus
Cambridge Audio DacMagic Plus
Cambridge Audio DacMagic Plus
Cambridge Audio DacMagic Plus
DISCONTINUED
AVAILABILITYN/A

The DacMagic Plus works by taking a direct digital audio signal from your computer, TV or other device - bypassing its inbuilt digital to analogue converters. This signal is then carefully analysed and upgraded using our clever ATF2 upsampling system. Once this complex but instant process is complete, DacMagic Plus then outputs your music as a much purer, lifelike analogue signal to your amplifier. Custom developed by our dedicated team in the heart of London, DacMagic Plus is totally flexible and supports digital music of all formats. It even allows you to upgrade 24-bit music files stored on your PC for better-than-CD performance from your digital music collection. Our unique ATF2 (Adaptive Time Filtering) upsampling technology, developed in conjunction with Anagram Technologies, Switzerland. logo-upsamplingAll incoming audio data, such as CD at 16-bit 44.1kHz CD, is upsampled to 24-bit 192kHz using a high-end 32-bit Analog Devices DSP (Digital Signal Processor). "Polymomial Curve Fitting Interpolation" provides a much more accurate upsampled audio soundwave than traditional upsampling processes. And a unique timing system buffers audio data to almost eradicate digital jitter. Vital – as jitter, common in digital audio devices, loses vital detail, often leaving digital audio sounding flat and lifeless. Our latest ATF2 DSP also features a selectable digital filter with three settings to suit listener preferences and their particular system set-up:
- The Steep roll-off filter exhibits strong attenuation of aliasing images outside the pass band (i.e. above 22.05kHz) at the expense of a little pre and post-ringing in the time domain.
- The Linear phase filter uniquely features ‘constant group delay’ which delays all audio signals at all frequencies by the same amount meaning all audio is fully time-coherent at the output.
- Minimum phase meanwhile does not feature constant group delay but rather the co-efficients have been optimised without feed-forward so that the impulse response exhibits no pre-ringing in the time domain.

Specifications
- Digital to Analogue Converters: Dual Wolfson WM8740 24bit DACs
- Digital filter: Analog Devices ADSP21261 DSP, upsampling to 24-bit/384kHz
- Analogue filter: 2-Pole Dual Differential Bessel Double Virtual Earth Balanced
- Frequency Response: 20Hz to 20kHz (±0.1dB)*
- THD @ 1Khz 0dBFs: <0.001% 24-bit
- THD @ 1kHz -10dBFs: <0.001%
- THD @ 20kHz 0dBFs: <0.002%
- Signal to Noise Ratio: -112dBr
- Total correlated jitter: <130pS
- Crosstalk @ 1kHz: < -130dB
- Crosstalk @ 20kHz: < -112dB
- Output Impedance: <50ohms
- Max. output level (unbalanced) 2.1V rms
- Max. output level (balanced) 4.2V rms (2.1V per phase)
- Digital input word widths supported: 16-24bit
- Digital input sampling frequencies supported: 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz**, 192kHz
- Audio output up-sampling: Fixed 24-bit/384kHz
- Max power consumption 12W
- Dimensions (H x W x D): 52 x 215 x 191mm, (2.0 x 8.6 x 7.6”)
- Weight: 1.2kg/2.6lbs

Headphone output
- THD: at 1kHz 0dBFS 24 bit signal with 22kHz low pass filter = 0.001%, at 20khz 0dBFS 24 bit signal with 80kHz low pass filter = 0.003%
- S/N: -111dBrA
- Frequency Response: 10Hz - 100kHz
- Recommend headphones with impedance between 32 Ohm to 600 Ohm.