HIDIZS S9 PRO PLUS MARTHA Headphone Amplifier Portable Balanced DAC Blue

HIDIZS S9 PRO PLUS MARTHA: ES9038Q2M DAC chip

Inside this balanced portable DAC headphone amplifier is an ESS Technology ES9038Q2M DAC chip based on the 32-bit Hyperstream II QUADDAC architecture and Time Domain Jitter Eliminator technology. The characteristics of this DAC enable the S9 Pro Plus Martha to support 32bit 768kHz PCM and DSD512 streams, with sound reproduction featuring an SNR of up to 128dB and a THD+N of -120dB.

HIDIZS S9 PRO PLUS MARTHA: simplified controls and filters

The Hidizs S9 Pro Plus Martha's interface features two rotary knobs that allow you to access controls such as volume adjustment and 6 PCM filters by pressing them simultaneously. These filters enable her to adapt to your tastes, the type of tracks you're listening to, as well as to the various IEMs and headphones on the market. Here are the available filters:

• Green (Default Filter) : Anodizing fast roll-off, vocals are slightly forward, and high frequencies are extended with reduced resonance.
• Red : Linear phase fast roll-off, enhanced analytical capabilities, delivering a clean and crisp sound.
• Blue : Linear phase slow roll-off, enriched harmonics, full low frequencies, and natural reverb.
• Yellow : Minimum phase fast roll-off, balanced and moderate sound.
• Purple : Minimum phase slow roll-off, Clean sound with a forward position.
• White : Hybrid fast roll-off, soft and smooth sound with enhanced detail.

HIDIZS S9 PRO PLUS MARTHA: an RGB LED indicator

The LED indicator logo is not only used to select the different filters available. It also indicates the type of stream being played, thanks to its different colors:

• Yellow : DSD 64/128
• Purple : DSD 256/512
• Blue : PCM 176.4/192kHz
• Red : PCM 352.8/384kHz
• White : PCM 705.6/768kHz
• Green : PCM 44.1/48/88.2/96kHz