{"id":173625,"date":"2023-10-29T11:31:16","date_gmt":"2023-10-29T11:31:16","guid":{"rendered":"https:\/\/www.techweekmag.com\/?p=173625"},"modified":"2023-10-29T11:31:16","modified_gmt":"2023-10-29T11:31:16","slug":"hidizs-s9-pro-plus-martha-new-dac-with-headphone-amplifier","status":"publish","type":"post","link":"https:\/\/www.stereoindex.com\/tech\/hi-fi\/hidizs-s9-pro-plus-martha-new-dac-with-headphone-amplifier\/","title":{"rendered":"Hidizs S9 Pro Plus Martha: New DAC with headphone amplifier"},"content":{"rendered":"

Hidizs S9 Pro Plus Martha<\/b>\u00a0is a new DAC with headphone amplifier.\u00a0The new product has 2 outputs for connecting headphones: 3.5mm + 4.4mm.\u00a0Output power 180 mW with 32 ohm headphones on balanced output.<\/p>\n

We named the Hidizs S9 Pro Plus “Martha” because “Martha” is the name of the last surviving female Passenger Pigeon, the largest flocking bird species to ever exist on Earth.\u00a0109 years after the extinction of the population of this species of pigeon, in memory of this magnificent species, professional acoustic brand Hidizs decided to name its third generation balanced DAC HiFi S9 Pro Plus “Martha”.\u00a0If this is your first encounter with the Passenger Pigeon thanks to Hidizs, then we have truly achieved our goal.<\/p>\n

The Heart of Martha – Hidizs Professional HiFi Audio Circuit Architecture<\/b>
\nThe S9 Pro Plus Martha uses fourth-generation professional HiFi audio processing architecture developed by Hidizs Acoustic Laboratory.\u00a0It is a fully balanced circuit architecture consisting of four parts: USB interface processor, DAC, independent headphone amplifier and POP noise reduction system.\u00a0The DAC uses the flagship ES9038Q2M DAC chip, which features ESS Technology’s patented 32-bit HyperStream\u00ae II QUADDAC\u2122 architecture and time domain jitter elimination system.\u00a0It provides exceptionally high fidelity audio data and represents the highest level of audio decoding technology.\u00a0Its superior performance makes it a top choice for audiophiles and high-definition music lovers.<\/p>\n

\"Hidizs_S9_Pro_Plus_Martha_HiFi_Balanced_Dongle_DAC-5.jpg\"<\/p>\n

Unlocks physical volume buttons and 7 filters for unparalleled Hi-Res music sound<\/b>
\nHidizs S9 Pro Plus ‘Martha’ features practical function buttons designed specifically for audiophiles, providing convenient and quick volume adjustments for easily adapting to volume changes when switching between different headphones .\u00a0In addition, the ES9038Q2M offers seven PCM FILTER IMPULSE RESPONSE effects, and the switching function is integrated into two buttons.\u00a0Pressing both buttons at the same time cycles through the seven filtering effects.<\/p>\n

Below is a description of these seven filter effects:<\/b><\/p>\n

    \n
  1. Anodizing fast roll-off (default filter): Vocals are pushed forward slightly and high frequencies are extended by reducing resonance.<\/li>\n
  2. Linear phase fast roll-off: Enhanced analytical capabilities for clear, crisp sound.<\/li>\n
  3. Linear phase slow roll-off: Enriches harmonics, rich low frequencies and natural reverberation.<\/li>\n
  4. Minimum phase fast roll-off: Balanced and moderate sound.<\/li>\n
  5. Minimum phase slow roll-off: Clear sound with a forward position.<\/li>\n
  6. Hybrid fast roll-off: Soft and smooth sound with increased detail.<\/li>\n
  7. Brick wall: Excellent dynamics and strong presence.<\/li>\n<\/ol>\n

    The S9 Pro Plus “Martha” offers filter switching that can be adapted to the different qualities of the headphones, maximizing their potential.<\/p>\n

    \"Hidizs_S9_Pro_Plus_Martha_HiFi_Balanced_Dongle_DAC-6-2.jpg\"<\/p>\n

    LED sampling rate indication<\/b>
    \nDifferent audio formats, different visual effects.\u00a0Meticulously designed by Hidizs, the S9 Pro Plus is a visual feast of sample rates.\u00a0We use vibrant RGB lighting to instantly display different formats and sample rates:<\/p>\n