వార్మ్ ఆడియో WA-412

Warm Audio WA-412 User Manual

4 ఛానల్ మైక్రోఫోన్ ప్రీamplifier + Instrument DI

పరిచయం

The Warm Audio WA-412 is a high-quality 4-channel microphone preamplifier and instrument direct input (DI) unit, designed to deliver the classic "American console" sound. This unit is renowned for its punchy low end and smooth, open top end, making it ideal for a wide range of audio recording applications. It features fully discrete socketed 6-pin opamps and custom-wound Altran USA input and output transformers, ensuring exceptional audio fidelity and performance.

This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your WA-412 unit. Please read it thoroughly to ensure proper use and to maximize the lifespan of your equipment.

కీ ఫీచర్లు

  • 4 ఛానల్ మైక్రోఫోన్ ప్రీamplifier + Instrument DI: Versatile inputs for various audio sources.
  • 65dB of Gain: Ample gain for a wide range of microphones and instruments.
  • +48 వోల్ట్ ఫాంటమ్ పవర్: Essential for condenser microphones.
  • -20dB ప్యాడ్: Attenuates both microphone and instrument DI inputs to prevent clipping.
  • Altran USA Custom Wound Transformers: Premium input and output transformers for superior sound quality and extended low-frequency response.
  • Discrete Socketed 6-Pin Opamps: High headroom and low distortion characteristics, contributing to the classic console sound.

ఉత్పత్తి ముగిసిందిview

Warm Audio WA-412 front view with included cables and cloth

మూర్తి 1: ముందు view of the Warm Audio WA-412 4-channel microphone preamplifier, shown with the included Geartree cloth and four XLR cables. This image highlights the complete package.

Warm Audio WA-412 angled front view

మూర్తి 2: కోణీయ ముందు భాగం view of the Warm Audio WA-412, showcasing the four individual channels, each with its own controls and VU meter. This perspective provides a clear view of the front panel layout.

Warm Audio WA-412 rear view with input and output connections

మూర్తి 3: వెనుక view of the Warm Audio WA-412, displaying the balanced XLR inputs and outputs for each of the four channels, along with the AC power inlet and voltage selector switch. This view is crucial for understanding connectivity.

Warm Audio WA-412 internal components view

మూర్తి 4: అంతర్గత view of the Warm Audio WA-412, revealing the custom-wound Altran transformers, discrete opamps, and circuit boards. This image illustrates the high-quality components used in the unit's construction.

సెటప్ గైడ్

1. అన్ప్యాకింగ్ మరియు తనిఖీ

Carefully remove the WA-412 from its packaging. Inspect the unit for any signs of damage that may have occurred during shipping. If any damage is found, contact your dealer immediately.

2. ర్యాక్ మౌంటు

The WA-412 is designed for standard 19-inch rack mounting. Secure the unit using appropriate rack screws. Ensure adequate ventilation around the unit to prevent overheating.

3. పవర్ కనెక్షన్

  1. Ensure the WA-412's power switch is in the OFF position.
  2. వాల్యూమ్ని ధృవీకరించండిtage selector switch on the rear panel matches your local mains voltagఇ (115V లేదా 230V).
  3. Connect the supplied AC power cord to the WA-412's power inlet and then to a grounded AC outlet.

4. ఆడియో కనెక్షన్లు

The WA-412 features four independent channels, each with XLR inputs and outputs. Instrument DI inputs are located on the front panel.

  • మైక్రోఫోన్ ఇన్‌పుట్: Connect your microphone to the XLR INPUT on the rear panel of the desired channel using a balanced XLR cable.
  • Instrument DI Input: For instruments, connect your instrument (e.g., guitar, bass) to the 1/4" TS DI INPUT on the front panel of the desired channel. Connecting a cable to the DI input automatically bypasses the rear XLR microphone input for that channel.
  • అవుట్‌పుట్: Connect the BALANCED OUTPUT XLR on the rear panel of each channel to your audio interface, mixer, or recording device's line input.

ఆపరేటింగ్ సూచనలు

Front Panel Controls (Per Channel)

  • గెయిన్ నాబ్: Adjusts the input gain for the microphone or DI input. Provides up to 65dB of gain.
  • +48V బటన్: Engages phantom power for condenser microphones. The corresponding LED illuminates when active. Always ensure your microphone is connected before engaging phantom power.
  • PAD బటన్: Engages a -20dB attenuation pad for both microphone and DI inputs. Use this when input signals are too hot and causing clipping. The corresponding LED illuminates when active.
  • POL (Polarity) Button: Inverts the polarity (phase) of the input signal. Useful for phase alignment issues when using multiple microphones. The corresponding LED illuminates when active.
  • VU మీటర్: Displays the output level of the channel. Aim for levels that peak around 0 VU for optimal signal-to-noise ratio without clipping.
  • DI Input (1/4" TS): Front panel input for connecting instruments.

ప్రాథమిక ఆపరేషన్ దశలు

  1. అన్ని కనెక్షన్లు సురక్షితంగా మరియు సరిగ్గా ఉన్నాయని నిర్ధారించుకోండి.
  2. Turn on the WA-412 using the POWER switch on the front panel.
  3. For microphones, engage +48V phantom power if using a condenser microphone.
  4. If the input signal is very strong, engage the PAD button to prevent overloading the preamp.
  5. Slowly increase the GAIN knob while monitoring the VU meter and your recording software/mixer. Adjust the gain until you achieve a healthy signal level without clipping.
  6. If necessary, use the POL button to correct any phase issues.

నిర్వహణ

  • శుభ్రపరచడం: యూనిట్ వెలుపలి భాగాన్ని శుభ్రం చేయడానికి మృదువైన, పొడి వస్త్రాన్ని ఉపయోగించండి. రాపిడి క్లీనర్లు లేదా ద్రావకాలను నివారించండి.
  • వెంటిలేషన్: Ensure the ventilation slots are clear of dust and obstructions to maintain proper airflow and prevent overheating.
  • నిల్వ: ఎక్కువ కాలం ఉపయోగంలో లేనప్పుడు, యూనిట్‌ను చల్లని, పొడి ప్రదేశంలో, ప్రత్యక్ష సూర్యకాంతి మరియు తీవ్రమైన ఉష్ణోగ్రతలకు దూరంగా నిల్వ చేయండి.
  • Opamp Swapping: The WA-412 features socketed opamps. While designed for user-swapping, this should only be performed by experienced technicians or users familiar with electronic components. Always power off and disconnect the unit from the mains before attempting to swap opamps.

ట్రబుల్షూటింగ్

సమస్యసాధ్యమైన కారణంపరిష్కారం
శక్తి లేదుPower cord disconnected; Power switch off; Incorrect voltage ఎంపిక; ఎగిరిన ఫ్యూజ్.Check power cord connection; Ensure power switch is ON; Verify voltage selector matches mains; Consult a qualified technician for fuse replacement.
ఆడియో అవుట్‌పుట్ లేదుIncorrect cabling; Gain too low; Phantom power not engaged (for condenser mics); PAD engaged unnecessarily; Output connected to incorrect input on next device.Verify all XLR and DI connections; Increase GAIN; Engage +48V for condenser mics; Disengage PAD if signal is weak; Ensure WA-412 output is connected to a line-level input on your mixer/interface.
వక్రీకృత ఆడియోInput signal too hot; GAIN set too high; PAD not engaged when needed.Engage PAD; Reduce GAIN; Check input level from source.
హమ్ లేదా శబ్దంGround loop; Faulty cable; Nearby electrical interference.Ensure all equipment is on the same electrical circuit; Try different cables; Move unit away from power supplies or other noisy electronics.

స్పెసిఫికేషన్లు

ఫీచర్వివరాలు
మోడల్ పేరుWA-412
ఛానెల్‌లు4
ముందుగాampజీవిత రకంDiscrete, Transformer Balanced
లాభం65dB వరకు
ఇన్‌పుట్‌లు4 x XLR Microphone, 4 x 1/4" TS Instrument DI (front panel)
అవుట్‌పుట్‌లు4 x XLR Balanced
ఫాంటమ్ పవర్+48V (switchable per channel)
ప్యాడ్-20dB (switchable per channel)
ధ్రువణత స్విచ్Yes (switchable per channel)
ట్రాన్స్ఫార్మర్లుAltran USA Custom Wound Input and Output Transformers
OpampsDiscrete Socketed 6-Pin Opamps
శక్తి మూలంకార్డెడ్ ఎలక్ట్రిక్ (115V/230V ఎంచుకోదగినది)
ఉత్పత్తి కొలతలు27 x 10 x 21 అంగుళాలు
వస్తువు బరువు38.5 పౌండ్లు
రంగునలుపు
అనుకూల పరికరాలుGuitar, Double Bass, Keyboard, Mandolin, Accordion, Viola, Harmonica, Banjo, Cello, Violin, Ukulele, Drum, All

వారంటీ మరియు మద్దతు

Warm Audio products are designed for reliability and performance. For information regarding warranty coverage, technical support, or service, please visit the official Warm Audio webసైట్ లేదా మీ అధీకృత డీలర్‌ను సంప్రదించండి.

ఆన్‌లైన్ వనరులు:

  • Warm Audio Official Webసైట్: www.warmaudio.com
  • ఉత్పత్తి మద్దతు పేజీ: (అధికారికంగా చూడండి web(నిర్దిష్ట ఉత్పత్తి మద్దతు పేజీల కోసం సైట్)

For immediate assistance, please contact your point of purchase.

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