1. Pengenalan
This manual provides detailed instructions for the proper setup, operation, and maintenance of your PROEL Mi12 12-Channel Mixer with Effect. Please read this manual thoroughly before operating the unit to ensure safe and efficient use. The Mi12 is a compact 12-channel, 2-bus mixer designed for various audio applications, featuring an integrated effects processor.
2. Arahan Keselamatan
- Bekalan Kuasa: Gunakan hanya penyesuai kuasa yang ditentukan. Pastikan voltage sepadan dengan bekalan kuasa tempatan anda.
- Air dan Kelembapan: Jangan dedahkan perkakas ini kepada hujan atau lembapan. Jangan letakkan objek yang diisi dengan cecair, seperti pasu, pada radas.
- Pengudaraan: Pastikan pengudaraan yang mencukupi. Jangan sekat bukaan pengudaraan.
- haba: Jangan letak berhampiran sumber haba seperti radiator, daftar haba, dapur atau radas lain (termasuk amppenghidup) yang menghasilkan haba.
- Pembersihan: Bersihkan hanya dengan kain kering.
- Servis: Jangan cuba servis produk ini sendiri. Rujuk semua perkhidmatan kepada pegawai perkhidmatan yang berkelayakan.
- Pembumian: Jangan kalahkan tujuan keselamatan palam terkutub atau jenis pembumian.
3. Kandungan Pakej
Sila pastikan pakej anda mengandungi item berikut:
- PROEL Mi12 12-Channel Mixer
- Penyesuai Kuasa
- Manual Pengguna (dokumen ini)
4. Produk Lebihview
The PROEL Mi12 is a versatile 12-channel mixer featuring a compact design and a comprehensive set of controls for various audio mixing tasks. It includes multiple input types, a 3-band EQ on mono channels, two auxiliary sends, and a built-in digital effects processor.

Rajah 4.1: Atas view of the PROEL Mi12 mixer, illustrating the layout of all channels, controls, and the master section. This image provides a comprehensive look at the user interface, including input gains, EQ sections, auxiliary sends, pan controls, channel faders, the effects processor, and the main mix controls.
The mixer's top panel (Figure 4.1) is divided into several sections:
- Saluran Input: Channels 1-4 feature XLR microphone inputs and 1/4" line inputs. Channels 5/6, 7/8, 9/10, and 11/12 are stereo line inputs.
- Bahagian EQ: Each mono channel (1-4) includes a 3-band equalizer (HIGH, MID, LOW).
- Hantaran Bantuan: Two auxiliary sends (AUX 1 PRE, AUX 2 POST) per channel for monitoring or external effects.
- Effects Processor (PROFX): A dedicated section with 256 digital effects, including reverbs, delays, and chorus.
- Bahagian Induk: Controls for the main mix output, control room output, headphone output, and level meters.
5. Persediaan
Follow these steps to set up your PROEL Mi12 mixer:

Rajah 5.1: Rear panel of the PROEL Mi12 mixer, highlighting the power input (18V) and the main power switch. This view is crucial for initial power connection and understanding the mixer's physical interface.
5.1 Sambungan Kuasa
- Ensure the mixer's power switch (Figure 5.1) is in the OFF position.
- Connect the supplied power adapter to the 18V DC input on the rear panel of the mixer.
- Pasangkan penyesuai kuasa ke dalam soket kuasa AC yang sesuai.
- Turn the power switch to the ON position. The power indicator LED on the front panel should illuminate.
5.2 Sambungan Input Audio
- Mikrofon (Saluran 1-4): Connect microphones using balanced XLR-F cables to the MIC inputs. If using condenser microphones, activate the +48V Phantom Power switch located in the master section.
- Line Inputs (Channels 1-4): Connect line-level instruments or devices (e.g., keyboards, guitars with preamps) using balanced 1/4" JACK cables to the LINE inputs.
- Stereo Line Inputs (Channels 5/6, 7/8, 9/10, 11/12): Connect stereo line-level sources (e.g., media players, synthesizers) using 1/4" JACK cables. Use both LEFT and RIGHT inputs for stereo, or only the LEFT input for mono operation.
5.3 Sambungan Output Audio
- Main Mix Output: Connect the MAIN MIX LEFT and RIGHT outputs (1/4" JACK) to your power amplampu, pembesar suara berkuasa atau peranti rakaman.
- Control Room Output: Connect C.ROOM LEFT and RIGHT outputs (1/4" JACK) to your studio monitors.
- Output Fon Kepala: Connect your headphones to the PHONES output (1/4" JACK).
6. Arahan Operasi
6.1 Saluran Input (1-12)
- DAPATKAN: Adjusts the input sensitivity for the connected microphone or line source. Set this so the PEAK LED flashes only occasionally during the loudest parts of the signal.
- LO CUT (Channels 1-4): Activates a 75 Hz high-pass filter to remove unwanted low-frequency rumble.
- EQ (HIGH, MID, LOW - Channels 1-4): These knobs adjust the treble (12 kHz), midrange (2.5 kHz), and bass (80 Hz) frequencies of the input signal. Use them to shape the tone of your instrument or vocal.
- AUX 1 PRE: Sends a portion of the channel signal to the AUX 1 output, independent of the channel fader. Typically used for monitor mixes.
- AUX 2 POST / FX: Sends a portion of the channel signal to the AUX 2 output and the internal effects processor, after the channel fader. Typically used for effects sends.
- PAN (Saluran Mono) / BAL (Saluran Stereo): Adjusts the position of the channel signal within the stereo field (left to right).
- LED PUNCAK: Illuminates when the input signal is too high, indicating potential clipping. Reduce the GAIN if this LED lights up frequently.
- Channel Fader/Level: Mengawal jumlah keseluruhan saluran yang dihantar ke campuran utama.
6.2 Effects Processor (PROFX)
The Mi12 features a digital effects processor with 256 effects (16 presets x 16 variations).
- PRESET: Turn this knob to select one of the 16 effect types (e.g., Hall, Room, Vocal, Plate Reverbs, Delays, Chorus).
- VARIASI: Turn this knob to select one of the 16 variations for the chosen effect preset.
- FX TO AUX 1: Controls the amount of the effect signal sent to the AUX 1 output.
- FX TO MAIN: Controls the amount of the effect signal sent to the main stereo mix.
- KETIK: Press this button to set the tempo for delay effects.
6.3 Master Section
- CAMPURAN UTAMA Fader: Mengawal volum keluaran keseluruhan campuran stereo utama.
- MAIN MIX Meters: LED meters display the output level of the main mix. Aim for levels around 0 dB during normal operation, avoiding consistent red (clip) indications.
- C.ROOM / PHONES Level: Adjusts the volume for the Control Room outputs and the Headphone output.
- PHANTOM HIDUP/MATI: Activates or deactivates +48V phantom power for condenser microphones connected to XLR inputs. Ensure this is OFF before connecting/disconnecting microphones.
7. Penyelenggaraan
- Pembersihan: Disconnect the mixer from power before cleaning. Use a soft, dry cloth to wipe the surface. Do not use liquid cleaners or solvents.
- Storan: Apabila tidak digunakan untuk tempoh yang lama, simpan pengadun di tempat yang sejuk dan kering, jauh daripada cahaya matahari langsung dan suhu yang melampau.
- Perlindungan Debu: Cover the mixer with a dust cover when not in use to prevent dust accumulation on controls and connectors.
8. Penyelesaian masalah
- Tiada Keluaran Bunyi:
- Periksa semua sambungan kuasa dan pastikan pengadun dihidupkan.
- Verify that the MAIN MIX fader is up and not muted.
- Check individual channel faders and GAIN controls.
- Ensure output cables are correctly connected to your amplifier/speakers and that they are powered on.
- Bunyi Herot:
- Reduce the GAIN control on the input channel if the PEAK LED is constantly lit.
- Lower the channel fader or MAIN MIX fader if the main meters are consistently in the red.
- Periksa kabel atau sambungan yang rosak.
- Kesan Tidak Berfungsi:
- Ensure the AUX 2 POST / FX knob on the desired channel is turned up.
- Check the FX TO MAIN knob in the effects section.
- Verify that an effect preset and variation are selected.
9. Spesifikasi
| Ciri | Spesifikasi |
|---|---|
| Nombor Model | Mi12 |
| Bilangan Saluran | 12 |
| Input Connectors (Mic) | XLR-F yang seimbang |
| Input Connectors (Line) | Balanced Jack |
| Sensitiviti Input Mic | From -10 to -50 dB |
| Mono Line Input Sensitivity | Dari +20 hingga -40 dB |
| Stereo Line Input Sensitivity | +4 / -10 dB |
| Pemproses Kesan | 256 effects (16 presets x 16 variations): Hall, Room, Vocal, Plate Reverbs, Stereo/Mono Tap Delay, Rev + Delay, Rev + Tap Delay, Rev + Chorus |
| Teknologi Ketersambungan | Auxiliary, USB (Note: USB functionality not detailed in product description, assume for general connectivity) |
| Sumber Kuasa | Elektrik Bertali arus (18V DC) |
| Berat Barang | 3.18 Kilogram |
| Dimensi Produk | 32 x 25 x 8 cm |
| Pengeluar | Proel |
10. Waranti dan Sokongan
PROEL products are designed and manufactured to the highest quality standards. For information regarding warranty terms and conditions, please refer to the warranty card included with your product or visit the official PROEL website. For technical support or service inquiries, please contact your authorized PROEL dealer or distributor.





