[🎶SG] GUSTARD AUDALYTIC HP70 - Fully Balanced Discrete Headphone Amplifier & Preamplifier

🎵 OFFICIAL GUSTARD DEALER - 1 Year Local Warranty & Aftersales Support

Contact Us:
📞 WhatsApp/Call us @ 83329084 https://wa.me/6583329084
📧 Email us @ sales@samaudiosg.com
🗺️ Visit Us @ CT HUB 2, 114 Lavender Street, #03-68 (Lobby 2), S(338729) 

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GUSTARD AUDALYTIC HP70 

> Fully Balanced Discrete Class A Amplifier
> 4 Pairs Of Power MOSFET - for ample driving power
> Can be used as a pure preamp - with post-amplification diable option
> Dual Op-Amp - LME49720
> Matrix Relay System - ensuring consistent 4-channel volume
> Built-in low-noise power supply compatible - with DC 15-18V input
> Switchable Preamp Output - for headphone/speaker mode
> Single-ended to balanced conversion for fully balanced performance
> Multiple independent voltage regulation circuits to minimize interference
> Remote Control Support
> Adjustable gain from 0 to 28dB to match various headphones
> 3 line inputs and 2 preamp outputs

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Descriptions:

> Fully Balanced Discrete Class A Amplifier
> This fully balanced discrete Class A amplifier utilizes 4 pairs of power transistor to ensure ample driving power and superior control.
> The use of discrete components offers greater flexibility, allowing for precise fine-tuning of each stage to achieve optimal performance. This design approach also provies enhanced development potential. Furthermore, distortion characteristics are more manageable, enabling the circuit architecture to deliver a wider range of sonic characteristics with greater versatility. The post-amplification stage can be disabled, allowing the unit to function as a dedicated pure preamplifier.

> Preamp
> The preamp utilizes two socketed LME49720 dual op-amps. Preamp output can be disabled for seamless switching between headphone and speaker.

> Input Stage: Fully Balanced Topology
> Single-ended to balanced conversion circuit allows RCA inputs to benefit from full balanced drive performance.

> Built-in 30VA Low-noise Power Supply
> Also accepts an external 15-18V DC power input.

> Multi-stage Voltage Regulation
> Lower ripple noise and reduced interference for cleaner audio reproduction.

> R-2R Relay Volume Control
> Lossless precision adjustment with guaranteed channel matching across all 4 paths.

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Specifications:

Digital Inputs
> 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

> Preamplifier Analog Output (Rear XLR) Frequency Response: 20Hz - 40kHz (± 0.1dB)
> Signal-to-Noise Ratio: 122dB
> Channel Crostalk: < -120dB @ 1kHz
> THD+N: < 0.0004%
> IMD: < 0.0004%

Headphone Amplifier Output:
> 6.35mm Single-ended Output Impedance: 0.1Ω
> 4.4mm Balanced (TRS) Output Impedance: 0.2Ω
> Frequency Response: 20Hz - 40kHz (± 0.1dB)
> Signal-to-Noise: > 120dB
> Channel Crosstalk: -118dB @ 1kHz
> THD+N: < 0.0005% (1kHz, 1000mW into 32Ω)
> IMD: < 0.0005% (1000mW into 32Ω)
> Maximum Output Power (Clipping): 2000mW (32Ω, balanced)

Others
> Power Supply: AC 115V/230V, 50/60Hz
> Power Consumption: <15W
> Dimensions (WxDxH): 220 x 170 x 50 mm (excluding protrusions)
> Net Weight: 1.6kg
> Package Dimensions: 295 x 265 x 85 mm
> Shipping Weight: 2.1kg

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