Behringer UB802 Mixer audio a 8 ingressi e 2 bus a bassissimo rumore Manuale utente

1. Introduzione

The Behringer UB802 is an ultra-low noise, 8-input, 2-bus audio mixer designed for various audio applications, from home studios to live sound reinforcement. It features high-quality microphone preamplifiers, a 3-band equalizer on all channels, and flexible routing options for professional sound mixing.

Le caratteristiche principali includono:

• Ultra-low noise design, highest possible headroom, and ultra-transparent audio.
• Two state-of-the-art, studio-grade IMP "Invisible" Mic Preamps with 130 dB dynamic range for 24-bit, 192 kHz sampling rate inputs.
• Effective, extremely musical 3-band EQ on all channels.
• Six balanced high-headroom line inputs.
• One post-fader FX send per channel for external FX devices.

2. Importanti istruzioni di sicurezza

Please read these instructions carefully before operating your Behringer UB802 mixer. Retain these instructions for future reference.

• Fonte di energia: Utilizzare solo l'adattatore di alimentazione fornito con l'unità. Assicurarsi che il volumetage corrisponde all'alimentazione elettrica locale.
• Ventilazione: Non ostruire le aperture di ventilazione. Installare secondo le istruzioni del produttore.
• Acqua e umidità: Non utilizzare questo apparecchio vicino all'acqua né esporlo a gocce o schizzi.
• Calore: Non installare vicino a fonti di calore come radiatori, bocchette di riscaldamento, stufe o altri apparecchi (inclusi amplificatori) che producono calore.
• cavi: Proteggere il cavo di alimentazione per evitare che venga calpestato o schiacciato, in particolare in corrispondenza delle spine, delle prese di corrente e del punto in cui esce dall'apparecchio.
• Manutenzione: Affidare tutti gli interventi di assistenza a personale di assistenza qualificato. L'assistenza è richiesta quando l'apparecchio è stato danneggiato in qualsiasi modo, ad esempio se il cavo di alimentazione o la spina sono danneggiati, se è stato versato del liquido o sono caduti degli oggetti nell'apparecchio, se l'apparecchio è stato esposto a pioggia o umidità, se non funziona normalmente o se è caduto.

3. Controlli e connettori

3.1 Pannello superiore sopraview

This section details the controls and connectors located on the top panel of your UB802 mixer.

Figura 1: Dall'alto verso il basso view of the Behringer UB802 mixer's control panel. This image displays the microphone and line inputs, gain controls, 3-band EQ sections, FX send, pan/balance controls, channel level knobs, main mix section, phantom power switch, and level meters.

1. MIC IN (Channels 1-2): XLR inputs for connecting microphones. These inputs provide +48V phantom power when activated.
2. LINE IN (Channels 1-2, 3/4, 5/6): 1/4" TRS inputs for connecting line-level sources such as keyboards, drum machines, or other audio devices. Channels 3/4 and 5/6 are stereo pairs.
3. GAIN (Channels 1-2): Adjusts the input sensitivity for the microphone and line inputs. Use this to set the optimal signal level before it reaches the mixer's internal processing.
4. EQ (ALTO, MEDIO, BASSO): Three-band equalizer controls for shaping the tone of each channel. HIGH affects frequencies around 12 kHz, MID around 2.5 kHz, and LOW around 80 Hz.
5. Invio FX: This knob controls the amount of signal sent from the respective channel to the external effects processor connected to the FX Send output. It is a post-fader send.
6. PAN (Channels 1-2): Positions the mono signal within the stereo sound field (left to right).
7. BAL (Channels 3/4, 5/6): Adjusts the balance between the left and right signals of the stereo input channels.
8. LIVELLO: Adjusts the output volume of each individual channel to the main mix.
9. ALIMENTAZIONE PHANTOM (+48V): A switch to activate +48V phantom power for condenser microphones connected to the XLR inputs.
10. LED CLIP: Illuminates when the input signal is too high, indicating potential clipping or distortion. Reduce the GAIN control if this LED lights up frequently.
11. MISURATORI DI LIVELLO: LED indicators displaying the overall output level of the main mix. Aim for levels around 0 dB during normal operation.
12. MISCELA PRINCIPALE: Controls the overall output volume of the stereo main mix.
13. 2-TRACK IN/OUT: RCA connectors for connecting external recording devices or playback sources (e.g., CD players, tape decks).
14. CONTROL ROOM/PHONES: Output for connecting headphones or control room monitors. The level knob adjusts the volume for both.

3.2 Collegamenti del pannello posteriore

This section details the connections located on the rear panel of your UB802 mixer.

Figura 2: Posteriore view of the Behringer UB802 mixer. This image highlights the AC POWER IN port, MAIN OUT (L/R) jacks, FX SEND, and AUX RETURN jacks.

1. INGRESSO ALIMENTAZIONE CA: Connect the supplied Behringer power adapter here. Use only the specified power supply.
2. USCITA PRINCIPALE (S/D): 1/4" TRS outputs for connecting the main stereo mix to an amplifier, powered speakers, or a recording interface.
3. INVIO FX: 1/4" TS output for sending the combined FX send signal to the input of an external effects processor.
4. AUX RETURN: 1/4" TS input for receiving the processed signal back from an external effects processor.

4. Impostazione

Follow these steps to set up your Behringer UB802 mixer for operation.

1. Collegamento elettrico: Ensure the mixer is switched off. Connect the supplied power adapter to the AC POWER IN on the rear panel and then plug it into a suitable power outlet.
2. Collegamento microfono/strumento:
   • For microphones, connect XLR cables to the INGRESSO MICROFONO jacks (Channels 1-2). If using condenser microphones, activate the PHANTOM POWER (+48V) interruttore.
   • Per strumenti a livello di linea (ad esempio, tastiere, chitarre con preamps), connect 1/4" TS or TRS cables to the LINEA IN jacks. Use Channels 3/4 or 5/6 for stereo sources.
3. Connessione di uscita: Collegare il USCITA PRINCIPALE (S/D) jack al tuo amplifier, powered speakers, or audio interface using 1/4" TRS cables.
4. Monitoraggio: Collega le tue cuffie a TELEFONI jack or control room monitors to the SALA DI CONTROLLO FUORI jacks.
5. Effetti esterni (facoltativo): If using an external effects processor, connect the INVIO FX jack to the input of your effects unit. Then, connect the output of your effects unit to the RITORNO AUX jack on the mixer.
6. Recording/Playback Devices (Optional): Collegare il 2-TRACK OUT to the input of your recording device and the output of your playback device to the 2-TRACK IN.

5. Funzionamento del mixer

This section provides guidance on operating your Behringer UB802 mixer.

1. Sequenza di accensione: Turn on your mixer first, then your amplifier or powered speakers. When powering off, reverse the sequence (amplifier off first, then mixer) to prevent loud thumps.
2. Setting Gain Levels: For each active channel, speak or play into the microphone/instrument at its loudest expected level. Slowly turn up the GUADAGNO controllo fino al LED CLIP briefly flashes. Then, back off the GAIN slightly so the CLIP LED no longer illuminates. This ensures optimal signal-to-noise ratio without distortion.
3. Regolazione dei livelli dei canali: Imposta tutti i canali LIVELLO knobs to their minimum position. Slowly bring up the LEVEL knob for each channel to achieve a balanced mix.
4. Using the EQ: Utilizzare il ALTO, METÀ, E BASSO controls to shape the tone of each input. Turning a knob clockwise boosts the frequency, while turning it counter-clockwise cuts it. Start with all EQ knobs at the center (0 dB) position.
5. Panning/Balancing: Utilizzare il PADELLA knob for mono channels (1-2) to position them in the stereo field. Use the BAL knob for stereo channels (3/4, 5/6) to adjust the left/right balance.
6. Applying Effects (FX Send): Alza il Invio FX knob on the desired channel to send its signal to the external effects processor. Adjust the effect unit's wet/dry mix and the RITORNO AUX level on the mixer to blend the effect into the main mix.
7. Livello mix principale: Regolare il MIX PRINCIPALE knob to control the overall output volume. Monitor the MISURATORI DI LIVELLO to ensure the main mix is not clipping.
8. Monitoraggio: Utilizzare il CONTROL ROOM/PHONES knob to adjust the listening volume for your headphones or control room monitors.

6. Manutenzione

Una corretta manutenzione garantisce la longevità e le prestazioni ottimali del vostro mixer.

• Pulizia: Disconnect the power before cleaning. Use a soft, dry, lint-free cloth to wipe the surface of the mixer. Avoid using abrasive cleaners, solvents, or waxes, as these can damage the finish and controls.
• Magazzinaggio: When not in use for extended periods, store the mixer in a cool, dry place, away from direct sunlight and extreme temperatures. Consider using a dust cover.
• Disconnessione dell'alimentazione: Always disconnect the power adapter from the wall outlet if the unit will not be used for a long time.

7. Risoluzione Dei Problemi

If you encounter issues with your Behringer UB802, refer to the following common problems and solutions.

• Nessun potere:
  • Assicurarsi che l'adattatore di alimentazione sia collegato saldamente sia al mixer sia a una presa di corrente funzionante.
  • Verificare che la presa di corrente sia attiva.
  • Check if the correct power adapter is being used (only the one supplied by Behringer).
• Nessuna uscita audio:
  • Check all cable connections from input sources to the mixer, and from the mixer's outputs to your amplificatore/altoparlanti.
  • Ensure channel LIVELLO manopole e il MIX PRINCIPALE la manopola è alzata.
  • Verificare che il GUADAGNO controls are set appropriately and the LED CLIP is not constantly lit.
  • If using condenser microphones, ensure PHANTOM POWER (+48V) è attivato.
  • Controlla i livelli del volume sul tuo amplificatore o altoparlanti amplificati.
• Suono distorto:
  • Ridurre il GUADAGNO control for the offending channel if the LED CLIP is frequently flashing.
  • Abbassare il canale LIVELLO or MIX PRINCIPALE livello.
  • Controllare la sorgente di ingresso per eventuali distorsioni prima che raggiunga il mixer.
• Ronzio o rumore:
  • Ensure all audio cables are properly shielded and in good condition.
  • Try to isolate the mixer's power supply from other noisy electrical devices.
  • Check for ground loops by ensuring all equipment is connected to the same power circuit or using a ground loop isolator if necessary.

8. Specifiche

Technical specifications for the Behringer UB802 mixer.

9. Garanzia e supporto

Per informazioni dettagliate sulla garanzia e sul supporto tecnico, fare riferimento al sito ufficiale Behringer webo contattare direttamente il servizio clienti. Conservare la ricevuta d'acquisto come prova d'acquisto per eventuali reclami in garanzia.

Behringer is committed to providing high-quality products and support to its users.