1. Bubuka
The Behringer Sonic Ultramizer SU9920 is a stereo sound enhancement processor designed to improve the clarity, presence, and depth of audio signals. It achieves this by dynamically processing the low and high frequencies, making sound systems more impactful without requiring additional speakers or amplifiers. This manual provides detailed instructions for the proper installation, operation, and maintenance of your SU9920.

Gambar 1: Angled view of the Behringer Sonic Ultramizer SU9920, showcasing its rack-mountable design and front panel controls.
2. Parentah Kasalametan penting
- Baca parentah ieu tuntas saméméh operasi unit.
- Tetep parentah ieu pikeun rujukan hareup.
- Perhatikeun sadaya peringatan dina alat sareng dina petunjuk operasi.
- Turutan sagala parentah.
- Entong nganggo alat ieu caket cai.
- Ngabersihan ngan ku kaén garing.
- Ulah meungpeuk sagala bukaan ventilasi. Pasang saluyu sareng parentah produsén.
- Entong dipasang di deukeut sumber panas sapertos radiator, register panas, kompor, atanapi aparat sanésna (kalebet ampLiifiers) anu ngahasilkeun panas.
- Ulah eleh tujuan kaamanan colokan polarized atawa grounding-tipe. A colokan polarized boga dua wilah jeung hiji leuwih lega ti lianna. A colokan tipe grounding boga dua wilah jeung prong grounding katilu. Agul lega atawa prong katilu disadiakeun pikeun kaamanan Anjeun. Upami colokan anu disayogikeun henteu pas kana stop kontak anjeun, konsultasi ka tukang listrik pikeun ngagantian stop kontak anu tos lami.
- Nangtayungan kabel listrik tina leumpang atawa diciwit, utamana dina colokan, wadah merenah, jeung titik dimana aranjeunna kaluar tina aparat.
- Ngan anggo kantétan/aksésori anu ditunjuk ku produsén.
- Anggo ngan sareng karanjang, stand, tripod, bracket, atanapi méja anu ditunjuk ku produsén, atanapi dijual sareng alatna. Nalika karanjang dipaké, ati-ati nalika ngagerakkeun kombinasi karanjang/aparatur pikeun nyegah tatu tina tip-over.
- Cabut colokan alat ieu nalika badai kilat atanapi nalika henteu dianggo kanggo waktos anu lami.
- Rujuk sadayana jasa ka tanaga jasa anu mumpuni. Diperlukeun ngalayanan nalika aparatur ruksak ku cara naon waé, sapertos kabel catu daya atanapi colokan rusak, cairan tumpah atanapi barang murag kana aparatur, aparatur parantos kakeunaan hujan atanapi lembab, henteu beroperasi normal. , atawa geus turun.
3. Fitur konci
The Behringer Sonic Ultramizer SU9920 offers the following key features:
- Stereo Sound Enhancement Process with Dedicated Low Contour Process Controls.
- TRS and XLR Input/Output (I/O) connectors for versatile connectivity.
- Enhances voice intelligibility and music presence in various audio applications.
- Improves the performance of sound systems by adding sparkling high-end and tight bass without requiring additional speakers or amplifsters.
4. Kadali sareng Panyambung
4.1 Panel payun
The front panel of the SU9920 provides all the necessary controls for sound enhancement and monitoring.

Gambar 2: Front panel of the Behringer Sonic Ultramizer SU9920. This view shows the controls for Channel 1 and Channel 2, including Process and Low Contour knobs, Clip indicators, and the In/Out bypass button.
- CHANNEL 1 / CHANNEL 2: These sections contain the controls for each stereo channel.
- PROCESS Knob: Adjusts the amount of high-frequency enhancement for the respective channel. Turning clockwise increases the effect.
- LOW CONTOUR Knob: Controls the amount of low-frequency enhancement and definition for the respective channel. Turning clockwise increases the effect.
- CLIP LEDs: Indicate when the input or output signal is clipping, suggesting the signal level is too high and may cause distortion. Adjust input levels to prevent clipping.
- Tombol IN/OUT: Activates or bypasses the sound enhancement processing. When illuminated, the processing is active.
- Saklar Daya: Ngahurungkeun atanapi mareuman unit.
4.2 Panel tukang
The rear panel houses all the audio input and output connections, as well as the power input.

Gambar 3: Rear panel of the Behringer Sonic Ultramizer SU9920. This view displays the AC power inlet, and the balanced XLR and 1/4" TRS input and output connectors for both channels.
- AC DI: Standard IEC power connector for connecting the included power cable.
- INPUTS 1 & 2 (XLR & TRS): Balanced XLR and 1/4" TRS input connectors for connecting audio sources. Use either XLR or TRS for each channel, not both simultaneously.
- OUTPUTS 1 & 2 (XLR & TRS): Balanced XLR and 1/4" TRS output connectors for sending the processed audio signal to other equipment, such as an amplifier or mixer. Use either XLR or TRS for each channel, not both simultaneously.
5. Setélan
Proper setup ensures optimal performance and prevents damage to your equipment.
- Ngabongkar bungkusan: Carefully unpack the SU9920 and inspect it for any signs of damage during transit. Retain the original packaging for future shipping or storage.
- panempatan: Install the unit in a standard 19-inch rack if desired, ensuring adequate ventilation around the chassis. Avoid placing it near heat sources or in direct sunlight.
- Sambungan Daya: Connect the supplied AC power cable to the AC IN socket on the rear panel and then to a suitable power outlet. Ensure the POWER switch on the front panel is in the OFF position before connecting.
- Sambungan Audio:
- Connect your audio source (e.g., mixer output) to the INPUTS 1 and 2 on the rear panel using balanced XLR or 1/4" TRS cables.
- Connect the OUTPUTS 1 and 2 to the inputs of your next audio device (e.g., amplifier, recording interface) using balanced XLR or 1/4" TRS cables.
- Ensure all connections are secure and correctly phased.
- Setélan Awal: Before powering on, set both PROCESS and LOW CONTOUR knobs to their minimum (fully counter-clockwise) positions. Ensure the IN/OUT button is disengaged (processing bypassed).
6. Operasi
Follow these steps to operate your Sonic Ultramizer SU9920:
- Daya Hurung: After all connections are made and initial settings are configured, press the POWER switch on the front panel to turn on the unit.
- Pariksa sinyal: Play an audio signal through your system. Ensure that audio is passing through the SU9920 even with the processing bypassed.
- Engage Processing: Press the IN/OUT button to engage the sound enhancement processing. The button will illuminate.
- Adjust PROCESS: Slowly turn the PROCESS knob clockwise for Channel 1 and/or Channel 2. Listen for increased clarity and presence in the high frequencies. Adjust to taste, avoiding excessive brightness or harshness.
- Adjust LOW CONTOUR: Slowly turn the LOW CONTOUR knob clockwise for Channel 1 and/or Channel 2. Listen for enhanced bass definition and impact. Adjust to taste, avoiding muddiness or overwhelming bass.
- Monitor CLIP LEDs: Continuously monitor the CLIP LEDs. If they illuminate frequently or stay lit, reduce the input level to the SU9920 or the PROCESS/LOW CONTOUR settings to prevent distortion.
- A/B Comparison: Use the IN/OUT button to quickly bypass and re-engage the processing to compare the enhanced sound with the original signal. This helps in fine-tuning the settings.
- Pareum listrik: When finished, press the POWER switch to turn off the unit.
7. Pangropéa
The Behringer Sonic Ultramizer SU9920 requires minimal maintenance to ensure long-term reliability.
- beberesih: Clean the unit regularly with a soft, dry cloth. Do not use liquid cleaners or solvents, as they may damage the finish or internal components.
- Ventilasi: Ensure that the ventilation openings are not obstructed. Dust accumulation can lead to overheating.
- Panyimpenan: If storing the unit for an extended period, disconnect it from power and store it in a dry, dust-free environment, preferably in its original packaging.
- Palayanan: All servicing should be performed by qualified service personnel. Do not attempt to open the unit or perform repairs yourself.
8. Cara ngungkulan
This section addresses common issues you might encounter with your SU9920.
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| Taya kakuatan | Power cable disconnected; power outlet faulty; unit fuse blown. | Check power cable connection. Try a different power outlet. If fuse is suspected, contact qualified service personnel. |
| Taya sora | Incorrect audio connections; cables faulty; IN/OUT button disengaged; source device not sending signal. | Verify all audio cables are correctly connected to INPUTS and OUTPUTS. Test cables. Ensure IN/OUT button is illuminated. Check audio source. |
| Distorted sound / CLIP LED constantly lit | Input signal too high; PROCESS/LOW CONTOUR settings too high. | Reduce the output level from your audio source. Decrease the PROCESS and LOW CONTOUR knob settings. |
| Sound is too bright or harsh | PROCESS knob set too high. | Reduce the PROCESS knob setting. |
| Bass is muddy or overwhelming | LOW CONTOUR knob set too high. | Reduce the LOW CONTOUR knob setting. |
9. Spésifikasi
Technical specifications for the Behringer Sonic Ultramizer SU9920:
- model: SU9920
- Beurat barang: 4.85 pon (2.2 kg)
- Ukuran produk: 19.02 x 1.75 x 8.54 inci (483 x 44.5 x 217 mm)
- warna: Hideung
- Input: Balanced XLR and 1/4" TRS
- Kaluaran: Balanced XLR and 1/4" TRS
- kakuatan: Standard AC input
- Enhancement Type: Stereo Sound Enhancement Processor with Low Contour Control
10. Garansi jeung Rojongan
Kanggo inpormasi garansi anu lengkep sareng dukungan téknis, mangga tingal Behringer resmi websitus atanapi ngahubungan departemén layanan palanggan maranéhna. Simpen resi pameseran anjeun salaku bukti pameseran pikeun klaim garansi.
Resmi Behringer Websitus: www.behringer.com





