Gustard Audalytic HP70 User Manual

1. Introduzione

Thank you for choosing the Gustard Audalytic HP70. This device is a high-performance, fully balanced discrete headphone amplifier and pure preamplifier designed to deliver exceptional audio fidelity. It features a Class A amplificazione stage, advanced volume control, and versatile input/output options for a superior listening experience. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance and longevity of your HP70.

Figura 1: Fronte view of the Gustard Audalytic HP70 in silver.

2. Prodotto finitoview

2.1 Pannello frontale

The front panel of the HP70 features essential controls and headphone outputs for easy access and operation.

Figura 2: dettagliata view of the HP70 front panel.

• Pulsante di accensione: Utilizzato per accendere o spegnere l'unità.
• Manopola del volume: Controls the output volume. This is an R-2R relay volume control for precise, lossless adjustment.
• Uscita cuffie single-ended da 6.35 mm: Standard headphone jack for single-ended headphones.
• 4.4mm Balanced (TRS) Headphone Output: Balanced headphone jack for compatible headphones.

2.2 Pannello posteriore

The rear panel provides all input and output connections for integrating the HP70 into your audio system.

Figure 3: Rear panel connections of the HP70.

• AC Input 115V/230V: Ingresso di alimentazione per il dispositivo.
• Fuse: User-replaceable fuse for power protection.
• DC Power Input (12V-18V): Ingresso di alimentazione CC alternativo.
• Ingresso LAN: Per la connettività di rete.
• Ingresso USB: For connecting to a computer or other digital source.
• Ingresso ottico: Ingresso audio ottico digitale.
• Coaxial Input 1 & 2: Ingressi audio coassiali digitali.
• Ingressi RCA (L/R): Analog RCA stereo inputs.
• Ingressi XLR (L/R): Balanced analog XLR stereo inputs.
• Balanced Output XLR (L/R): Balanced analog XLR stereo outputs for preampfunzione lificatore.
• Single-Ended Output RCA (L/R): Analog RCA stereo outputs for preampfunzione lificatore.
• Antenna Bluetooth: Per la ricezione audio wireless.
• Slot per schede TF: For local media playback (if supported by firmware).

2.3 Componenti interni

The HP70 features a meticulously designed internal layout, showcasing its fully balanced discrete Class A amplifier architecture and multi-stagevoltage regolamento.

Figura 4: Interno view highlighting the discrete Class A amplificatore stage with power transistors.

Figura 5: Interno view detailing the input stage and built-in low-noise power supply.

3. Impostazione

3.1 Disimballaggio

Carefully remove the HP70 and its accessories from the packaging. Ensure all items are present:

• Gustard Audalytic HP70 unit (x1)
• Telecomando (x1)
• Manuale dell'utente (x1)
• Cavo di alimentazione
• Antenna Bluetooth

3.2 Collegamento di alimentazione

1. Ensure the HP70 is placed on a stable, level surface with adequate ventilation.
2. Connect the provided power cable to the AC input on the rear panel of the HP70.
3. Plug the other end of the power cable into a suitable AC power outlet (115V/230V, 50/60Hz).
4. Alternatively, a 12V-18V DC power supply can be used with the DC power input.

3.3 Collegamenti audio

Connect your audio sources and output devices to the HP70 using appropriate cables.

• Fonti di ingresso: Connect your digital sources (e.g., CD player, streamer, computer) to the USB, Optical, or Coaxial inputs. Connect analog sources (e.g., turntable preamplifier, DAC) to the RCA or XLR analog inputs.
• Output Devices (Preamplifier Mode): Per il collegamento a una presa di corrente amplifier or active speakers, use the Balanced XLR or Single-Ended RCA outputs on the rear panel.
• Cuffie: Connect your headphones to either the 6.35mm single-ended or 4.4mm balanced (TRS) output on the front panel.
• Antenna Bluetooth: Screw the provided Bluetooth antenna onto its connector on the rear panel for wireless connectivity.

4. Istruzioni per l'uso

4.1 Accensione/spegnimento

Press the power button on the front panel to turn the HP70 on or off. The unit will typically display its status or volume level when powered on.

4.2 Controllo del volume

Rotate the large knob on the front panel clockwise to increase volume and counter-clockwise to decrease it. The HP70 uses an R-2R relay volume control for precise, lossless adjustment and excellent channel matching.

4.3 Selezione dell'ingresso

Use the remote control or a dedicated button (if available on the front panel, refer to specific model display) to cycle through the available input sources (USB, Optical, Coaxial 1, Coaxial 2, RCA, XLR, Bluetooth, TF Card).

4.4 preampModalità lifier

The HP70 can function as a dedicated pure preamplifier. In this mode, the post-amplificazione stage (headphone amplifier) can be disabled. This allows for seamless switching between headphone and speaker listening without needing to disconnect headphones. Refer to the on-screen menu or remote control for options to enable/disable the headphone amplifier section when using the XLR or RCA line outputs.

4.5 Cuffie AmpModalità lifier

When headphones are connected to the front panel outputs, the HP70 operates as a powerful headphone amplifier. Ensure the volume is set to a low level before playing audio to protect your hearing.

4.6 telecomando

The included remote control provides convenient access to power, volume, input selection, and other settings. Familiarize yourself with the remote's buttons for full control over the HP70's functions.

5. Caratteristiche principali

• Fully Balanced Discrete Class A Amplificatore: Utilizes 4 pairs of power transistors for ample driving power and superior control. Discrete components allow for precise fine-tuning and enhanced development potential, offering a wider range of sonic characteristics. The post-amplificazione stage can be disabled for pure preampfunzionamento del filtro.
• Preamplifier with Socketed Op-Amps: Il preamp section uses two socketed LME49720 dual op-ampS. Il preamp output can be disabled for seamless switching between headphone and speaker outputs.
• Fully Balanced Input Stage: Features a single-ended to balanced conversion circuit, allowing RCA inputs to benefit from full balanced drive performance.
• Multi-stage voltage Regolamento: Designed with multiple stages del voltage regulation to achieve lower ripple noise and reduced interference, resulting in cleaner audio reproduction.
• R-2R Relay Volume Control: Provides lossless precision adjustment with guaranteed channel matching across all 4 audio paths.

6. Specifiche

6.1 Generale

• Marca: Fanmusic (Gustard Audalytic)
• Modello: Numero di modello: HP70
• Colore: Argento
• Alimentazione elettrica: AC 115V/230V, 50/60Hz or DC 12V-18V
• Consumo energetico: <15Settembre
• Dimensioni (LxPxA): 220 x 170 x 50 mm (excluding protrusions)
• Peso netto: 1.6 kg
• Tecnologia di connettività: RCA, XLR, USB, Optical, Coaxial, Bluetooth, LAN
• Tipo di controller: Telecomando
• Dispositivi compatibili: Speaker, Tablet, Personal Computer, Smartphone, AmpLifier, Cuffie
• Modalità di uscita audio: Stereo, Surround (configurazione a 5.1 canali)

Figure 6: Dimensions of the Gustard Audalytic HP70.

6.2 preamplifier Analog Output (Rear XLR)

• Risposta in frequenza: Da 20 Hz a 40 kHz (± 0.1 dB)
• Rapporto segnale-rumore: 122 dB
• Diafonia dei canali: <-120dB @ 1kHz
• THD+N: <0.0004%
• DMI: <0.0004%

6.3 Cuffie Amplifier Output (6.35mm Single-Ended / 4.4mm Balanced)

• Output Impedance (6.35mm): 0.1Ω
• Output Impedance (4.4mm Balanced): 0.2Ω
• Risposta in frequenza: Da 20 Hz a 40 kHz (± 0.1 dB)
• Rapporto segnale-rumore: >120 dB
• Diafonia dei canali: -118 dB a 1 kHz
• THD+N: <0.0005% (1kHz, 1000mW into 32Ω)
• DMI: <0.0005% (1000mW into 32Ω)
• Maximum Output Power (Clipping): ≈2000mW (32Ω, balanced)

6.4 ingressi digitali

• RCA Inputs (2 sets): Input Sensitivity: Typical 2Vrms, Maximum 3Vrms; Input Impedance: 20kΩ
• XLR Balanced Input (1 set): Input Sensitivity: Typical +15dBu (5V), Maximum +18dBu (6V); Input Impedance: 10kΩ

7. Manutenzione

To ensure the longevity and optimal performance of your Gustard Audalytic HP70, follow these maintenance guidelines:

• Pulizia: Use a soft, dry cloth to wipe the exterior of the unit. Avoid using liquid cleaners, aerosols, or solvents, as these may damage the finish or internal components.
• Ventilazione: Ensure the unit has adequate ventilation. Do not block the ventilation openings. Avoid placing the unit in enclosed spaces or on soft surfaces that may impede airflow.
• Ambiente: Operate the HP70 in a clean, dry environment, away from direct sunlight, heat sources, excessive dust, and moisture.
• Spegnimento quando non in uso: If the unit will not be used for an extended period, it is recommended to power it off and disconnect it from the power outlet.

8. Risoluzione Dei Problemi

If you encounter issues with your HP70, refer to the following common troubleshooting steps:

• Nessun potere:
  • Verificare che il cavo di alimentazione sia collegato saldamente sia all'unità sia alla presa di corrente.
  • Verificare che la presa di corrente funzioni.
  • Controllare il fusibile sul pannello posteriore. Se bruciato, sostituirlo con un fusibile dello stesso tipo e potenza.
• Nessun suono:
  • Assicurarsi che sia selezionata la sorgente di input corretta.
  • Check all audio cable connections (inputs and outputs) for secure fit.
  • Increase the volume level on the HP70 and your source device.
  • If using preamplifier outputs, ensure your power amplifier or active speakers are powered on and functioning correctly.
  • If using headphones, ensure they are properly plugged into the correct jack and are functional.
• Suono distorto:
  • Check if the input signal level is too high, causing clipping. Reduce the output volume from your source device.
  • Assicurarsi che tutti i cavi siano in buone condizioni e correttamente collegati.
  • Test with a different audio source or headphones/speakers to isolate the issue.
• Il telecomando non funziona:
  • Controllare e sostituire le batterie del telecomando.
  • Ensure there are no obstructions between the remote and the HP70's IR receiver.

Se il problema persiste dopo aver provato questi passaggi, contattare l'assistenza clienti.

9. Garanzia e supporto

9.1 Informazioni sulla garanzia

The Gustard Audalytic HP70 comes with a Garanzia di 1 anno from the date of purchase, covering manufacturing defects. This warranty does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear. Please retain your proof of purchase for warranty claims.

9.2 Assistenza clienti

For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact the seller or authorized distributor. For products purchased via Amazon, the seller is SHENZHENAUDIO. Please refer to your purchase documentation for specific contact details.