EarAcoustic STA Pro 2DD IEM & Audiocular SPARK DAC

EarAcoustic STA Pro Dual Dynamic Driver IEM

Balanced, Analytical & Fatigue-Free High-Fidelity Sound

The EarAcoustic STA Pro is a precision-engineered dual dynamic driver in-ear monitor built for audiophiles, professionals, and critical listeners who demand clarity without fatigue. Featuring a 10mm ultra-clear composite diaphragm for authoritative bass and natural mids, paired with a 6mm high-speed composite driver for crisp, controlled highs, the STA Pro delivers a wide soundstage, clean transients, and rich micro-details across the frequency spectrum.

Powered by Tesla-level N50 magnets producing ~10,000GS magnetic flux, the STA Pro achieves ultra-low distortion (<0.5% THD), lightning-fast <3ms transient response, and a tightly controlled ~50ms bass rebound. The result is a smooth, balanced, and immersive sound signature with excellent instrument separation—ideal for long listening sessions, studio monitoring, and high-resolution music playback.

---

Dual Dynamic Driver Architecture for Pure Sonic Accuracy

At the heart of the STA Pro is a dual-core dynamic driver array.

• The 10mm graphene-infused diaphragm handles lows and mids with authority, texture, and speed

• The 6mm composite diaphragm delivers extended, airy treble without harshness or sibilance

This configuration ensures natural timbre, fast decay, and distortion-free dynamics, allowing vocals, instruments, and ambience to remain clearly defined even in complex tracks.

---

Balanced & Analytical Sound Signature

The EarAcoustic STA Pro is tuned for neutral-leaning balance with musical warmth:

• Tight, controlled bass with realistic impact

• Forward yet natural mids for vocals and acoustic instruments

• Smooth, airy treble that reveals detail without fatigue

Its holographic presentation and wide soundstage make it versatile across genres—from EDM and rock to jazz, classical, and film scores.

---

Year of the Snake Inspired Design

Inspired by the 2025 Year of the Snake, the STA Pro features serpentine resin faceplates with iridescent scale detailing and flowing contours. Crafted in Shenzhen, the shells blend mythical artistry with modern acoustic engineering, making the STA Pro as visually striking as it is sonically refined.

---

Ergonomic Fit for All-Day Comfort

Designed using real-ear canal data, the STA Pro’s lightweight zinc-alloy shells offer:

• Secure, low-profile fit

• Effective passive noise isolation

• Reduced pressure points for extended listening

Multiple eartip sizes ensure optimal seal and comfort, whether at a desk, studio, or on the move.

---

Premium Detachable Audiophile Cable

Included is a 1.2m high-purity 0.78mm 2-pin detachable cable, constructed from oxygen-free copper and silver-plated mixed-weave strands. Professionally built for pure signal transmission, it offers:

• Zero audible microphonics

• Minimal signal loss

• Durable, tangle-resistant construction

The detachable design also allows easy upgrades with aftermarket cables.

Specifications

• Brand: EarAcoustic

• Model: STA Pro

• Driver Configuration: Dual Dynamic (10mm + 6mm)

• Impedance: 22Ω

• Sensitivity: 108dB

• Frequency Response: 10Hz – 30kHz

• Total Harmonic Distortion: <0.5%

• Transient Response: <3ms

• Bass Rebound: ≈50ms

• Magnetic Flux: ~10,000GS (N50 magnets)

• Cable Connector: 0.78mm 2-pin

• Cable Material: OFC / Silver-plated mixed weave

• Cable Length: 1.2m

AUDIOCULAR SPARK Hi-Res Portable DAC Dongle (CX31993 + MAX Amp)

Experience Studio-Grade Audio Anywhere

The AUDIOCULAR SPARK is a premium Type-C to 3.5mm portable DAC dongle, built to transform your everyday listening into a high-fidelity experience. Powered by the flagship CX31993 DAC chip and MAX97220 amplifier, the SPARK delivers studio-quality audio with exceptional clarity, rich bass, and crisp detail—making it the ideal upgrade for audiophiles, music lovers, and gamers on the go.

---

Key Features

🎧 Flagship DAC + Amplifier Combo

Featuring the powerful CX31993 DAC and MAX97220 amp, SPARK offers expansive sound with dynamic lows, smooth mids, and ultra-clear highs—free from distortion or harshness.

🔊 Hi-Res Audio Support (32bit/384kHz)

Enjoy PCM 32bit/384kHz and ADC 24bit/96kHz audio decoding. With an SNR >124dB and THD+N as low as 0.000003, your audio stays pure, detailed, and immersive.

💪 High Power Output

SPARK delivers up to 63mW at 32Ω, ideal for driving IEMs and headphones between 16–32Ω. Whether you're on mobile or desktop, hear your music fully come alive.

🎵 Immersive Soundstage & Isolation

Perfect for gaming or movies, SPARK creates a wide and accurate soundstage, restoring subtle background effects while reducing external noise distractions.

🔗 Seamless Type-C to 3.5mm Compatibility

Easily connect your favorite wired headphones to smartphones, tablets, or notebooks with USB-C ports—no compromises on sound quality.

🧳 Ultra-Portable and Travel-Ready

Its compact, lightweight design fits easily in your pocket or case—ideal for commuting, working, or relaxing on the go.

🛠️ Durable & Audiophile-Grade Build

Built with 8-strand silver-plated copper wire and a gold-plated 3.5mm jack, the SPARK ensures optimal conductivity, durability, and long-term performance.

🔌 Universal Device Support

Works flawlessly with most Android phones, laptops, and tablets with Type-C ports—no driver required for plug-and-play convenience.

---

Specifications

• Model: AUDIOCULAR SPARK

• DAC Chip: CX31993

• Amp Chip: MAX97220

• Decoding Support: PCM 32bit/384kHz, ADC 24bit/96kHz

• Power Output: 63mW @ 32Ω

• Signal-to-Noise Ratio (SNR): >124dB

• Dynamic Range (DNR): >120dB

• THD+N: 0.000003

• Compatibility: 16–32Ω headphones

• Connector: USB Type-C to 3.5mm

---

Why Choose AUDIOCULAR SPARK?

If you're looking for a hi-res DAC dongle under budget that doesn’t compromise on build quality, sound fidelity, or power output, the AUDIOCULAR SPARK is your ideal pick. It’s a true plug-and-play solution that elevates your everyday audio into a rich and immersive sonic journey.

---

✅ Ideal For

• Audiophiles & Music Enthusiasts

• On-the-go Hi-Fi Listening

• Mobile Gamers

• Commuters & Remote Workers