1. Pengenalan
Manual ini menyediakan arahan yang komprehensif untuk Koss SB40 Computer Headset with Microphone. Designed for clear communication and immersive audio, this headset is suitable for various computer applications, including gaming and voice calls. Please read this manual thoroughly to ensure proper setup, operation, and maintenance of your device.
2. Maklumat Keselamatan
To prevent damage to the headset or personal injury, please observe the following safety guidelines:
- Elakkan daripada mendedahkan alat dengar kepada suhu, kelembapan atau cahaya matahari langsung yang melampau.
- Do not disassemble or attempt to repair the headset yourself. Refer all servicing to qualified personnel.
- Keep the headset away from water or other liquids.
- Adjust volume to a comfortable level to prevent hearing damage during prolonged use.
3. Kandungan Pakej
Sahkan bahawa semua item terdapat dalam pakej:
- Koss SB40 Computer Headset with Microphone
- Manual Pengguna (dokumen ini)

Rajah 1: Depan view of the Koss SB40 Computer Headset, showing the over-ear design and attached microphone boom.
4. Persediaan
4.1 Menyambung Alat Dengar
The Koss SB40 headset features a dual-entry cable design with two 3.5mm plugs for separate audio and microphone connections:
- Cari Palam TRS 3.5mm (Tip-Ring-Sleeve) for headphone audio. Insert this plug into your computer's headphone jack (typically marked with a headphone icon or green color).
- Cari Palam TS 3.5mm (Tip-Sleeve) for the microphone. Insert this plug into your computer's microphone input jack (typically marked with a microphone icon or pink color).

Rajah 2: The Koss SB40 headset showing its dual 3.5mm audio and microphone plugs for connection to a computer.
4.2 Microphone Configuration (Windows PC)
For optimal microphone performance on a Windows PC, especially with Realtek audio drivers, consider adjusting the following settings:
- After connecting the headset, the Realtek audio manager may automatically open. If not, access it through your system tray or Control Panel.
- Navigasi ke Mikrofon tab.
- Dayakan Penindasan Bunyi to reduce background noise.
- Dayakan Pembatalan Gema Akustik to prevent echoes during calls.
- Laraskan Peningkatan Mikrofon. Click the microphone icon next to the volume slider and increase the boost to +10dB for clearer voice pickup.
- Additionally, configure microphone settings within your communication applications (e.g., Steam, Zoom, Skype) for push-to-talk or specific mute options.
5. Arahan Operasi
5.1 Main Balik Audio
The SB40 headset delivers a frequency response of 20 to 20 kHz, an impedance of 120 ohms, and a sensitivity of 96 dB SPL, ensuring clear and dynamic sound reproduction. Adjust the audio volume using your computer's system volume controls or within individual applications.
5.2 Penggunaan Mikrofon
The integrated noise-cancelling microphone is designed to minimize ambient background noise, focusing on your voice for clear communication. Position the microphone boom approximately 1-2 inches from your mouth for optimal voice pickup.
5.3 Comfort and Fit
The headset features large, closed leatherette earcups that comfortably surround the ear, providing maximum sound isolation and reducing external noise. The adjustable headband ensures a secure and comfortable fit for extended periods of use.

Rajah 3: sebelah view of the Koss SB40 headset illustrating its dimensions, which contribute to its lightweight and comfortable design.
6. Penyelenggaraan
To maintain the performance and longevity of your Koss SB40 headset:
- Clean the earcups and headband with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Store the headset in a clean, dry place when not in use.
- Avoid pulling on the cables excessively to prevent internal damage.
7. Penyelesaian masalah
7.1 Tiada Output Audio
- Ensure the 3.5mm TRS audio plug is fully inserted into the correct headphone jack on your computer.
- Check your computer's volume settings and ensure they are not muted or set too low.
- Sahkan bahawa peranti output audio yang betul dipilih dalam tetapan bunyi sistem pengendalian anda.
7.2 Mikrofon Tidak Berfungsi
- Confirm the 3.5mm TS microphone plug is fully inserted into the correct microphone input jack.
- Check your computer's microphone settings and ensure the microphone is not muted and input levels are adequate. Refer to Section 4.2 for detailed PC microphone configuration.
- Verify that the correct microphone input device is selected in your operating system's sound settings and within your communication applications.
7.3 Audio Terherot
- Reduce the volume level on your computer or application.
- Pastikan sumber audio adalah berkualiti.
- The headset is designed for low total harmonic distortion (less than 0.2%), so persistent distortion may indicate an issue with the audio source or connection.
8. Spesifikasi
| Ciri | Spesifikasi |
| Respons Kekerapan | 20 Hz - 20 kHz |
| Impedans | 120 ohm |
| Sensitiviti | 96 dB SPL |
| Herotan Harmonik Keseluruhan | Kurang daripada 0.2% |
| Ketersambungan | Wired (Dual 3.5mm plugs: TS for mic, TRS for headphone) |
| Mikrofon | Membatalkan kebisingan |
| Penempatan Telinga | Atas Telinga |
| bahan | Plastic, Leatherette earcups |
| warna | Hitam |
| Dimensi Produk | 4 x 7.06 x 9.19 inci |
| Berat Barang | 0.023 auns (lebih kurang 0.66 gram) |
9. Produk Lebihview Video
Untuk visual overview of the Koss SB40 Computer Headset, please watch the following video:
Video 1: Tayangan video produk rasmicasing the key features and design of the Koss SB40 Computer Headset with Microphone.
10. Maklumat Waranti
The Koss SB40 Computer Headset is covered under the Koss Stereophones Limited Lifetime Warranty. For detailed information regarding warranty terms, conditions, and claims, please refer to the official Koss website or contact Koss customer support.
11. Sokongan
If you require further assistance, have questions, or encounter issues not covered in this manual, please contact Koss customer support through their official webtapak atau maklumat hubungan yang diberikan bersama pembungkusan produk anda.