SPECIFICATIONS

Audio Characteristics: Full-range

Brand Name: NONE

Certification: NONE

Feature 1: 52mm speaker

Feature 10: 52mm 5w 4 ohm full range speaker

Feature 11: 2 inch 5w speaker for bluetooth speaker

Feature 12: small full range driver 5w

Feature 13: 4 ohm 5w speaker for arduino

Feature 14: speaker for diy portable speaker

Feature 15: replacement speaker 52mm 5w

Feature 16: 52mm 5w speaker for projector

Feature 17: speaker for raspberry pi

Feature 18: 87db sensitivity speaker

Feature 2: 2 inch speaker

Feature 3: full range speaker

Feature 4: 5w speaker 4 ohm

Feature 5: mini speaker 5w

Feature 6: small speaker for diy

Feature 7: 4 ohm speaker

Feature 8: replacement speaker

Feature 9: portable speaker driver

Frequency Range: 0.25~18KHz

High-concerned chemical: none

Maximum Power: 6W

Origin: Mainland China

Rated Power: 5W

Sensitivity: 87dB/W

Suspension Material: Foam

52mm 2-Inch 5W 4-Ohm Full Range Square Speaker Mini Blue Audio Driver for DIY Electronics Pro Home/Car Projects Fast Shipping

[Product Title]

52MM 2 Inch 5W Full Range Speaker – 4 Ohm 0.25-18KHz Square Mini Speaker, High Sensitivity 87dB, Foam Edge, Blue – for DIY Bluetooth Speaker, Smart Home, Portable Audio, Alarm System

[Bullet Points]

• Full Range Driver with Wide Frequency Response – Covers 0.25kHz to 18kHz, delivering clear vocals and balanced sound across bass, mid, and treble. Perfect for applications where a single speaker handles the entire audio spectrum without a crossover.

• Compact 52mm Square Design – Fits Tight Spaces – Only 2 inches (52mm) in size, square shape for easy mounting in DIY enclosures, portable Bluetooth speakers, smart home devices, or dashboards. Blue color adds visual accent for custom builds.

• Built to Last – High-Strength Low-Temperature Cycle Tested – Engineered to withstand repeated low-temperature cycles without performance degradation. Reliable for outdoor speakers, car audio (non-extreme), garage systems, or cold environment installations.

• Low Internal Impedance & High Sensitivity (87dB) – Low DCR means less power loss; 87dB sensitivity ensures good volume output even with small amplifiers (5W rated, 6W max). Works efficiently with Class D amp modules like PAM8403, MAX98357, or basic Bluetooth audio boards.

• Foam Edge for Smooth Cone Movement – Foam suspension provides good linearity and compliance, reducing distortion at moderate volumes. Ideal for mid-range focused applications where long-term durability and sound quality are both needed.

[Product Description]

Small Size. Big Sound.

This 52mm (2-inch) full range speaker packs surprising audio performance into a compact square frame. With a frequency response from 250Hz all the way to 18kHz, it delivers clear, natural sound for a wide range of DIY and commercial audio projects.

The 4-ohm impedance and 87dB sensitivity mean you get efficient power conversion – even a small 5W amplifier can drive this speaker to comfortable listening levels. And because it has passed rigorous low-temperature cycle testing, you can rely on it in garages, outdoor kiosks, or cold storage environments where cheap speakers fail.

Real-World Applications (Use Cases):

• DIY Bluetooth speakers – portable boombox or desktop wireless speaker

• Smart home devices – voice assistant, chime, or notification speaker

• Mini sound bars for TVs or monitors (2.0 or 2.1 systems)

• Toys and interactive exhibits – talking plush, arcade cabinet, or educational device

• Car audio retrofit – small cabin speakers or headrest speakers (4Ω compatible)

• Industrial alarm systems – voice alert or warning tone output

• Robot sound effects – audio feedback for hobby robots

• White noise / sleep sound machines

• Dashboard speakers for boats or RVs (with proper moisture protection)

• Replacement speaker for vintage radios or small electronics

Technical Specifications:

| Speaker type | Full range |

| Size | 52mm (2 inches), square shape |

| Rated power | 5W |

| Max power | 6W |

| Impedance | 4Ω |

| Frequency range | 0.25kHz – 18kHz (250Hz – 18,000Hz) |

| Sensitivity | 87dB/W |

| Suspension material | Foam edge |

| Color | Blue |

| Magnet type | Ferrite (standard for this class) |

Package Includes:

• 1 x 52mm 5W Full Range Square Speaker (Blue)

What You Also Need (not included):

• Amplifier board (e.g., 5W mono or stereo amp)

• Wires and enclosure

• Power supply (if powered speaker)

Important Notes:

• The foam edge provides good compliance but avoid long-term exposure to direct sunlight or ozone which can accelerate foam degradation.

• This speaker is not waterproof – for outdoor use, place in a weather-resistant enclosure.

• Rated at 5W RMS, 6W peak – do not exceed with higher power amplifiers to avoid damage.

• Before soldering, check polarity (+ and -) for correct phase.

Quick Suggestion for Best Sound:

• Mount the speaker in a sealed or ported enclosure of at least 0.5 liter internal volume for improved bass response.

• Add polyester fiber stuffing to reduce internal reflections.

• For stereo, use two units with a small Bluetooth amp board (e.g., 2x5W).