DAC Chip: Conexant CX21988 (Single)
PCM 24bit – 96khz, SNR: -95dB, Power: 1 Vrms, USB Type-C Male, 3.5mm SE (Microphone: Yes), 12cm, Aluminum Chassis OFC Cable
Listening Equipment: Etymotic ER4SR, ER2XR
LISTENING EQUIPMENT USED IMPARTED HUGE INFLUENCE TO SOUND IMPRESSIONS & RATING
- Neutral sparkly signature, airy timbre, “slender” tonality
- Intimate mids, neutral sounding vocals, moderate textures
- Great Treble textures with smooth decay
- Solid guitar, piano, cello and bass guitar tones, soft edged percussions
- Bass exhibit acceptable texture definition, so does the Mids
- Commendable details retrieval, amply nuanced
- Separation lines are clear, moderate imaging, not as sharp.
- Great speed handling, able to resolve 250BPM adeptly.
- For some reasons, JM01 sounds beautiful with Alison Krauss
- Non-organic timbre deposition, digital-ish
- Slightly boxed in Soundstage lacking depth
- Weak output maxed out at 70Ω.
- Thin sounding dynamics, lacking weight.
- Mid-Bass exhibited tamed impact and slam.
- Unlike JA21 which uses the same DAC chip, JM01 can be sibilant.
- Flat percussions sound, weak vibrancy, and bite
- Spatial imaging less precise and less holographic
JCally JM01. I will make this one quick. It is a sparkier version of JCally JA21, with better treble extensions and slightly more transparent. A little bit dryer sounding too. Otherwise, they are similar sounding in many ways. Between JM01 and JA21 – the most important lesson I have learnt was that the same DAC chip can sound very different, determined by how they are tuned especially with the Opamp they are paired with.
Best Pairing: Natively warm and dynamic BA/DD (70Ω max)
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