1. Pendahuluan
The KEiiD KD-240BT is a compact Class D stereo amplifier and receiver designed for high-fidelity home audio entertainment. It delivers 2x 40W RMS output and incorporates a Texas Instruments (TI) chip for enhanced performance. This unit is compatible with various passive speakers, with 6 to 8 ohm speakers recommended for optimal sound. It also features a convenient sleep timer function.
2. Fitur Utama
- Powerful Stereo Output: 2x 40W RMS Kelas D amplifier, capable of driving speakers up to 200W total.
- Bluetooth 5.0 Canggih: Equipped with an external antenna for stable, lossless wireless music streaming up to 65 feet (20 meters) in open areas.
- Beberapa Input Audio: Supports Optical, SPDIF, RCA, AUX, and USB for broad compatibility with analog and digital devices (up to 16 bits/44.1 kHz).
- Masukan Mikrofon: Includes a 1/4-inch wired microphone input.
- Adjustable Sound Controls: Features independent knobs for microphone volume, echo, L/R balance, bass, treble, and master volume.
- Equalization Options: Pre-set EQ modes including Country, Pop, Jazz, Rock, Classic, and Normal.
- Tampilan LED Digital: Provides clear visual feedback for all operations.
- Kontrol Jarak Jauh: Remote dengan fungsi penuh untuk pengoperasian yang mudah.
- Fungsi Pengatur Waktu Tidur: Customizable sleep timer from 30 to 180 minutes.
- 5-Level Safety Protection: Built-in safeguards against overload, overvoltage, overcurrent, short circuits, and self-protection for enhanced device and speaker safety.
3. Isi Paket
Harap centang kotak untuk item berikut:

Image: Contents of the KEiiD KD-240BT package, showing the receiver, remote control, Bluetooth antenna, headphone convertor, audio cord, and power cord.
- KEiiD KD-240BT Receiver & Amppengangkat
- Remote Control (requires 2x AAA batteries, not included)
- Antena Bluetooth
- 1/4" Male to 1/8" Female Headphone Convertor
- Kabel Audio 5 kaki
- Kabel Listrik
- User Manual (dokumen ini)
4. Pengaturan
4.1 Menghubungkan Speaker
Connect your passive speakers to the Left & Right-Channel Line Out terminals on the rear panel. Ensure correct polarity (+ to + and - to -). The unit supports 4-16 ohm speakers; 6 or 8 ohm speakers are recommended for optimal performance.
4.2 Menghubungkan Sumber Audio
The KD-240BT offers multiple input options:

Gambar: Detail view of the KEiiD KD-240BT rear panel, showing connections for power, Bluetooth antenna, speakers, subwoofer output, record/audio output, RCA input, optical input, S/PDIF input, and microphone input.
- Masukan Optik: Connect devices like TVs or CD players using an optical cable.
- Masukan S/PDIF: Connect devices using an S/PDIF coaxial cable.
- RCA Input (AUX): Use RCA cables to connect analog audio sources.
- Input USB: Insert a USB flash drive for playing audio files (WAV/FLAC/APE formats supported).
- Masukan Mikrofon: Connect a 1/4-inch wired microphone.
- Antena Bluetooth: Screw the provided Bluetooth antenna into its designated port on the rear panel for optimal wireless reception.
4.3 Sambungan Daya
Connect the provided power cord to the AC input on the rear panel of the receiver and then to a standard AC100-240V wall outlet.

Image: Diagram illustrating various input and output connections for the KEiiD KD-240BT, showing how to connect phones, pads, PCs, TV audio, CD/DVD players, turntables, and microphones via Bluetooth, USB, Optical, S/PDIF, and AUX, and outputting to passive speakers, home entertainment systems, BGM music systems, and wired headphones.
5. Petunjuk Pengoperasian
5.1 Daya Hidup/Mati
Tekan tombol KEKUATAN tombol pada panel depan atau kendali jarak jauh untuk menghidupkan atau mematikan unit.
5.2 Pilihan Masukan
Use the input selector buttons on the front panel or the remote control to switch between available audio sources: USB, Optical, SPDIF, AUX, and Bluetooth.
5.3 Pemasangan Bluetooth

Image: A KEiiD KD-240BT receiver next to a speaker and a smartphone, highlighting its Bluetooth 5.0 capability with an external antenna for stable, long-distance connection.
- Ensure the Bluetooth antenna is securely connected to the receiver.
- Select the Bluetooth input mode on the KD-240BT. The LED display will indicate 'BT'.
- On your Bluetooth-enabled device (smartphone, tablet, PC), go to the Bluetooth settings.
- Pencarian untuk available devices and select "KEiiD KD-240BT" from the list.
- Once paired, the device will connect, and you can stream audio wirelessly.
5.4 Kontrol Volume dan Nada
- Volume utama: Sesuaikan volume keluaran keseluruhan menggunakan tombol besar. MENGUASAI knob on the front panel or the volume buttons on the remote.
- Bas/Trebel: Gunakan BAS Dan TIGA KALI LIPAT knobs to adjust the low and high frequencies of the audio output.
- Keseimbangan: Sesuaikan KESEIMBANGAN knob to control the left and right channel output levels.
5.5 Kontrol Mikrofon
If a microphone is connected:
- Volume MIC: Adjust the microphone input level using the mikrofon tombol.
- Gema: Sesuaikan efek gema untuk mikrofon menggunakan GEMA tombol.
5.6 Pemerataan (EQ)
Use the EQ function on the remote control to cycle through pre-set equalization modes: Country, Pop, Jazz, Rock, Classic, and Normal. This allows you to tailor the sound profile sesuai keinginan Anda.
5.7 Pengatur Waktu Tidur
Activate the sleep timer function via the remote control. You can set the timer for durations between 30 and 180 minutes, after which the receiver will automatically power off.
6. Pemeliharaan
To ensure the longevity and optimal performance of your KEiiD KD-240BT receiver, follow these maintenance guidelines:
- Pembersihan: Use a soft, dry cloth to clean the exterior of the unit. Avoid using abrasive cleaners, solvents, or chemical sprays, as these can damage the finish.
- Ventilasi: Pastikan lubang ventilasi pada unit tidak terhalang. Aliran udara yang baik mencegah panas berlebih.
- Lingkungan: Place the receiver in a dry, well-ventilated area away from direct sunlight, heat sources, and excessive dust or moisture.
- Matikan: Always power off and unplug the unit from the wall outlet before cleaning or when it will not be used for an extended period.
7. Penyelesaian masalah
If you encounter issues with your KEiiD KD-240BT, please refer to the following common problems and solutions:
| Masalah | Kemungkinan Penyebab | Larutan |
|---|---|---|
| Tidak ada daya | Kabel daya tidak terhubung; Stopkontak rusak; Unit mati. | Ensure power cord is securely plugged in. Try a different outlet. Press the POWER button. |
| Tidak ada keluaran suara | Incorrect input selected; Speaker cables loose; Volume too low; Mute function active. | Select the correct input source. Check all speaker connections. Increase MASTER volume. Ensure unit is not muted. |
| Masalah koneksi Bluetooth | Bluetooth antenna not connected; Device too far; Not in pairing mode; Interference. | Ensure Bluetooth antenna is attached. Move device closer to the receiver. Re-enter Bluetooth pairing mode. Avoid strong Wi-Fi signals or other wireless devices. |
| Kontrol jarak jauh tidak berfungsi | Batteries depleted or incorrectly inserted; Obstruction between remote and receiver. | Replace batteries (2x AAA). Ensure correct polarity. Remove any obstructions. Point remote directly at the receiver's sensor. |
| Suara terdistorsi | Volume terlalu tinggi; Impedansi speaker tidak sesuai; Kualitas sumber audio buruk. | Reduce volume. Ensure speakers are 4-16 ohms (6-8 ohms recommended). Try a different audio source or cable. |
8. Spesifikasi

Gambar: Lebih dariview of KEiiD KD-240BT dimensions, key features, and a detailed specifications table including media resources, rated power, sensitivity, THD, frequency response, S/N, Bluetooth version, and sleep timer range.
| Fitur | Spesifikasi |
|---|---|
| Model | KD-240BT |
| Merek | KEiiD |
| Pabrikan | KEiiD Electronics |
| Daya Keluaran | 2 x 40W RMS (at 8 ohms) |
| Impedansi Speaker | 4-16 ohms (6-8 ohms recommended) |
| Versi Bluetooth | 5.0 |
| Range Nirkabel | Up to 65 feet (20 meters) in open areas |
| Input Audio | USB, Optical, SPDIF, RCA (AUX), 1/4" Microphone |
| Digital Input Support | Up to 16 bits/44.1 kHz |
| USB Media Format | WAV, FLAC, APE |
| Respon Frekuensi | Frekuensi 20Hz-22kHz |
| Distorsi Harmonik Total (THD) | <0.5% |
| Rasio Sinyal ke Derau (S/N) | 80dB |
| Sleep Timer Range | 30-180 menit |
| Sumber Daya | Tegangan AC 100-240V |
| Dimensi (P x L x T) | 26 x 23 x 8 cm (10.2 x 9.2 x 3.1 inci) |
| Berat | 1.6 kg (3.9 pon) |
| Perangkat yang Kompatibel | Speakers, Personal Computers, Televisions |
9. Garansi dan Dukungan
The KEiiD KD-240BT comes with a Garansi 1 tahun. This warranty covers replacement in case of any failure or quality issues. For warranty claims or technical support, please contact your retailer or the KEiiD customer service department.