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Unboxing Video
Product Showcase Video
- Dual 4-Inch Sound with Real Body: Built for listeners who want richer, more grounded sound from a passive bookshelf speaker, each S4 uses dual 4-inch mid-bass drivers to handle lower mids and bass with more ease. Vocals gain warmer presence, drums hit with cleaner impact, and audio feels fuller and more complete without loose boom.
- Three Drivers for Layered Texture: A coated 25mm silk dome tweeter with a neodymium motor keeps highs smooth and clear. Nomex composite mid-bass drivers, long-excursion design, and shorting rings support steadier cone control and lower distortion. The result is richer texture and cleaner separation, making complex music easier to follow.
- Acoustic Tuning for Balanced Playback: A 3kHz crossover with selected MKP capacitors and air-core inductors refines the handoff between the silk tweeter and dual mid-bass drivers. The tuned bass-reflex cabinet reinforces low-end body through controlled airflow, giving S4 a more cohesive, well-balanced playback character.
- Bi-Wire and Bi-Amp Ready: With 4Ω impedance and 50W AES / 100W Max power handling, S4 is designed as a natural match for most Douk Audio, Nobsound, and Ampapa amplifier setups. Bi-wire and bi-amp ready terminals let advanced HiFi systems separate high and low frequency paths for cleaner signal flow, stronger drive control, and future upgrades.
- Piano Gloss with Modern Elegance: Made to be seen, the white piano-gloss cabinet softens the equipment-heavy look of traditional speakers. On speaker stands, shelves, desktop setups, or audio racks, it becomes a polished focal point. Rounded edges, no veneer edges to lift, protective grilles, and anti-slip foot pads keep the pair clean, stable, and display-ready.
- Brand: Douk Audio
- Model: S4
- Product Type: Passive Bookshelf Speakers
- Mid-Bass Drivers: Dual 4" Nomex Composite Drivers
- Tweeter: 1" / 25mm Coated Silk Dome Tweeter
- Crossover Point: 3kHz
- Nominal Impedance: 4Ω
- Power Handling: 50W AES / 100W Max
- Frequency Range: 55Hz–22kHz
- Sensitivity: 86dB (±3dB)
- Connection: Bi-Wire / Bi-Amp Ready Binding Posts
- Compatible Cable Type: Banana Plug / Bare Speaker Wire
- Cabinet Finish: Piano Gloss Finish
- Dimensions (W × D × H): 160 × 258 × 380 mm / 6.30 × 10.16 × 14.96 in
- Package Dimensions (W × D × H): 415 × 340 × 445 mm / 16.33 × 13.38 × 17.51 in
- Net Weight: 5.66 kg / 12.48 lb
- Package Weight: 12.84 kg / 28.31 lb
- 1 Pair × S4
- 2 × Speaker Grilles
- 4 × Anti-Slip Foot Pads
User Manual of Douk Audio S4
FAQs
Q: What amplifier should I use with S4?
A: Use a stereo amplifier that supports 4Ω passive speakers. For power matching, refer to the amplifier’s RMS/continuous output at 4Ω. S4 is rated at 50W AES / 100W Max. Start at low volume and avoid audible distortion.
Q: When should I remove the jumper plates?
A: Keep the jumper plates installed for standard single-wire connection. Remove them only for bi-wire or bi-amp setups, then connect the HF and LF terminals separately. Do not use bi-amp wiring with the jumper plates installed.
Q: What should I check if the sound is too quiet or distorted?
A: Check the source volume, amplifier settings, speaker cable contact, jumper plates, and +/- polarity. Make sure the amplifier supports 4Ω speakers. If you hear distortion, lower the volume and check the input signal or wiring before playing louder.
Q: Do the speaker grilles affect sound quality? Should I remove them?
A: The grilles help protect the drivers from daily dust and light contact. Their sound impact is usually small in everyday listening. You can listen with or without the grilles and choose the look and sound you prefer.
Douk Audio S4
Completing the Douk Audio HiFi Chain
As our first flagship-level speaker, S4 brings Douk Audio engineering into the final stage of playback. It pairs naturally with most Douk Audio, Nobsound, and Ampapa amplifiers, completing the HiFi chain from source, preamp, and amplifier to fuller, balanced sound in your room.
- Crossover Network: 2-Way
- Impedance: 4Ω
- Power Handling: 50W AES / 100W Max
- Frequency Range: 55Hz–22kHz