1. Pengenalan
Terima kasih kerana membeliasing the TOPPING E50II Compact Desktop DAC. This device is designed to provide high-fidelity audio decoding for various digital sources. It features an AK4497S DAC chip, supports high-resolution audio formats up to PCM768kHz and DSD512, and offers versatile connectivity options including USB, optical, coaxial, RCA, and TRS balanced outputs. This manual provides essential information for proper setup, operation, and maintenance of your E50II.

Image 1.1: The TOPPING E50II Compact Desktop DAC in silver finish.
2. Maklumat Keselamatan
- Jangan buka atau ubah suai peranti ini. Pengubahsuaian yang tidak dibenarkan boleh membatalkan jaminan dan menimbulkan risiko keselamatan.
- Jauhkan peranti daripada air, kelembapan dan suhu tinggi.
- Use only the provided power adapter or a compatible 5V power supply.
- Pastikan pengudaraan yang betul di sekeliling peranti untuk mengelakkan terlalu panas.
- Elakkan meletakkan objek berat pada peranti.
- Disconnect the power cable during lightning storms or when unused for extended periods.
3. Kandungan Pakej
Sila pastikan semua item ada dalam pakej:
- TOPPING E50II Unit
- Alat Kawalan Jauh
- Kabel USB (Jenis-A ke Jenis-C)
- USB Power Cable (Type-A to Type-C)
- Antena Bluetooth
- Manual Pengguna (dokumen ini)
- Kad Waranti

Image 3.1: Included accessories: remote control, USB cables, and Bluetooth antenna.
4. Produk Lebihview
4.1 Panel Depan

Image 4.1: Front panel of the E50II, showing the display and control button.
- Skrin Paparan: Menunjukkan input semasa, sample rate, volume, and other status information.
- Butang pelbagai fungsi: Press to power on/off, select input, or adjust settings.
4.2 Panel Belakang

Image 4.2: Rear panel of the E50II, illustrating various input and output ports.
- RCA Outputs (L/R): Unbalanced analog audio output.
- TRS Balanced Outputs (L/R): Balanced analog audio output.
- Input sepaksi: Input audio digital.
- Input Optik: Input audio digital.
- Input USB-C: For connecting to a computer or other digital source.
- Input Kuasa USB-C: For connecting to a 5V power supply.
- Penyambung Antena Bluetooth: Untuk memasang antena Bluetooth.
5. Persediaan
5.1 Sambungan Kuasa
Connect the provided USB power cable to the E50II's "POWER" USB-C port and then to a 5V power adapter (not included) or a USB port on your computer. The E50II requires a stable 5V power supply for optimal performance.
5.2 Sambungan Audio
Choose the appropriate input and output connections based on your audio system:
- Input USB: Connect the E50II's "USB" port to your computer or other USB audio source using the provided USB data cable.
- Input Optik/Koaksial: Connect your digital audio source (e.g., CD player, TV) to the E50II's "OPTICAL" or "COAXIAL" input.
- Keluaran RCA: Connect the E50II's "SE" RCA outputs to your amppembesar suara atau pembesar suara aktif menggunakan kabel RCA.
- TRS Balanced Output: Connect the E50II's "BAL" TRS outputs to your balanced amplifier or active speakers using 6.35mm TRS cables. The E50II supports simultaneous output from both RCA and TRS ports.

Image 5.1: Close-up of the balanced TRS and unbalanced RCA output connections.
5.3 Bluetooth Antenna Installation
Screw the provided Bluetooth antenna onto the antenna connector on the rear panel of the E50II.
5.4 Driver Installation (for Windows)
For Windows operating systems, a dedicated driver is required for USB audio playback up to PCM768kHz and DSD512. The driver can be downloaded from the official TOPPING website. Follow the on-screen instructions for installation. macOS and Linux typically do not require a separate driver.
6. Arahan Operasi
6.1 Operasi Asas

Image 6.1: A hand interacting with the multi-function button on the E50II's front panel.
- Hidupkan/Mati Kuasa: Press and hold the multi-function button for 3 seconds to power on or off.
- Pemilihan Input: Briefly press the multi-function button to cycle through available inputs (USB, Optical, Coaxial, Bluetooth).
- Kawalan Kelantangan: Rotate the multi-function button to adjust the volume.
6.2 Menggunakan Alat Kawalan Jauh
Alat kawalan jauh yang disertakan menyediakan akses mudah kepada pelbagai fungsi:
- Butang Kuasa: Menghidupkan / mematikan unit.
- Butang Pemilihan Input: Dedicated buttons for USB, Optical, Coaxial, and Bluetooth inputs.
- Kelantangan Naik/Turun: Melaraskan volum keluaran.
- Redam: Mutes/unmutes the audio output.
- Butang EQ: Cycles through PEQ presets.
- Butang Penapis: Cycles through digital filter modes.
- Gain Button: Switches between Low and High gain modes.
6.3 TOPPING Home App Control
The E50II is compatible with the "TOPPING Home" app, allowing control from your smartphone or tablet via Bluetooth. This app enables input switching, EQ settings, and volume adjustment remotely.

Image 6.2: Smartphone displaying the TOPPING Home app interface for controlling the E50II.
6.4 Operasi Bluetooth
Untuk menyambung melalui Bluetooth:
- Switch the E50II input to Bluetooth mode. The display will show "BT".
- On your mobile device, search for "TOPPING E50II" in the Bluetooth settings and pair.
- Once connected, audio from your device will be streamed to the E50II. The E50II supports LDAC, aptX-Adaptive, aptX HD, aptX, AAC, and SBC codecs.

Image 6.3: A black E50II unit with a smartphone showing Bluetooth connection status.
6.5 PEQ (Parametric Equalizer) Function
The E50II features a 10-band Parametric Equalizer (PEQ) for precise sound customization. You can adjust frequency, gain, and bandwidth for each band. This function is accessible via the TOPPING Home app or dedicated PC software.

Image 6.4: Screenshot of the TOPPING TUNE FOR PC software interface, showing the 10-band PEQ settings.
6.6 Praamp Fungsi
The E50II can function as a preamplifier, allowing direct connection to a power amplifier or active speakers. In this mode, the volume can be controlled via the remote or the TOPPING Home app, providing precise output level control to prevent overload or under-driving of connected equipment.
7. Penyelenggaraan
- Bersihkan peranti dengan kain lembut dan kering. Jangan gunakan pembersih cecair atau aerosol.
- Pastikan bukaan pengudaraan bersih daripada habuk dan serpihan.
- Simpan peranti di tempat yang sejuk dan kering apabila tidak digunakan.
8. Penyelesaian masalah
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Tiada keluaran bunyi | Incorrect input/output selection, loose cables, muted volume. | Check input source, ensure cables are securely connected, unmute or increase volume. |
| Peranti tidak dihidupkan | Power cable not connected, faulty power adapter. | Ensure power cable is connected to a working 5V source. Try a different power adapter. |
| Isu sambungan Bluetooth | E50II not in Bluetooth mode, device not paired, interference. | Switch E50II to Bluetooth input. Re-pair the device. Ensure no strong interference sources nearby. |
| Audio yang diputarbelitkan | Input signal too high, incorrect gain setting, faulty cables. | Reduce source volume. Adjust E50II gain setting. Try different audio cables. |
| Windows USB driver not working | Incorrect driver installation, driver conflict. | Reinstall the latest driver from the TOPPING website. Check for other conflicting audio drivers. |
9. Spesifikasi
- Jenama: TOPING
- model: E50II
- Cip DAC: AK4497S
- Antaramuka USB: XMOS XU316
- Max USB Decoding: PCM 768kHz / DSD512
- Optical/Coaxial Decoding: Hingga 192kHz
- Codec Bluetooth: LDAC, aptX-Adaptive, aptX HD, aptX, AAC, SBC
- Mod Output Audio: Stereo
- Antaramuka Output: RCA (unbalanced), 6.35mm TRS (balanced)
- Antara Muka Input: USB, Optical, Coaxial, Bluetooth
- ciri-ciri: 10-band PEQ, Preamp function, TOPPING Home App control, Top Sync circuit for low jitter.
10. Waranti dan Sokongan
The TOPPING E50II is covered by the manufacturer's or authorized agent's warranty regulations. Please refer to the warranty card included in your package for specific terms and conditions. For technical support, driver downloads, or service inquiries, please visit the official TOPPING webtapak atau hubungi pengedar sah tempatan anda.
Official TOPPING Webtapak: www.toppingaudio.com