Audalytic HP70Headphone Amplifier Preamplifier Balanced Black

Audalytic HP70


The Audalytic HP70 is a high-end headphone amplifier and preamplifier designed to deliver exceptional sound quality thanks to its fully balanced and discrete architecture. Developed by Audalytic, a Gustard brand specializing in affordable high-end audio solutions, the HP70 is aimed at discerning audiophiles looking for powerful and precise amplification for their headphones or high-quality preamplification.

Audalytic HP70: Key features
Audalytic HP70: Amplification and preamplification stage

Audalytic HP70: Fully balanced design and discrete components

The HP70 stands out for its fully balanced and discreet design, using high-quality components such as the LME49720 operational amplifier. This design is based on carefully selected power transistors and discrete components, ensuring linear amplification and minimal distortion. Each stage of the amplifier is optimized to deliver fast response and pure sound reproduction with remarkable dynamics and clarity. The use of discrete components also allows for better audio signal management, reducing artifacts and improving overall fidelity.

Audalytic HP70: Versatility and connectivity

In addition to its role as a headphone amplifier, the HP70 can also serve as a preamplifier, making it compatible with a wide range of audio systems. It is designed to integrate seamlessly into a HiFi system, either in combination with an external DAC or as a standalone component.

Audalytic HP70: Connectivity diagram
1 ON/OFF button (standby)
2 Display
3 Volume knob
4 Balanced Jack 4.4mm headphone output
5 Single-ended Jack 6.35mm headphone output
6 Single-ended RCA input #1 (left channel)
7 Single-ended RCA input #2 (left channel)
8 Single-ended RCA output (left channel)
9 Power input
10 Balanced XLR input (right channel)
11 Balanced XLR input (left channel)
12 Single-ended RCA input #1 (right channel)
13 Single-ended RCA input #2 (right channel)
14 Single-ended RCA output (right channel)
15 Balanced XLR output (right channel)
16 Balanced XLR output (left channel)
17 15-18V DC external power supply input
18 Fuse

Audalytic HP70: Optimized power supply stage

The HP70's power supply stage has been designed to provide stable and clean power, which is essential for optimal audio performance. Thanks to careful design and high-quality components, the power supply minimizes background noise and interference, ensuring uncompromised listening. This stability translates into better instrument separation, a wider soundstage, and more faithful reproduction of details, even in the most complex musical passages.

Audalytic HP70: Power supply circuit

Audalytic HP70: Quality of construction and finish

The Audalytic HP70 features a sturdy, well-crafted design with a sleek, elegant finish. Its metal chassis ensures effective heat dissipation and protection against interference, while its intuitive controls allow for precise adjustment of volume and audio settings.

Technical characteristics

Specifications
Product type Headphone amplifier / preamplifier
Inputs 1x Balanced stereo XLR
2x Single-ended stereo RCA
Outputs 1x Single-ended stereo RCA
1x Balanced stereo XLR
1x Balanced Jack 4.4mm headphone output
1x Single-ended Jack 6.35mm headphone output
Input sensitivity RCA: Typ 2Vrms / Max 3Vrms
XLR : Typ +15dBu (5V) / Max +18dBu (6V)
Input impedance RCA: 20kΩ
XLR : 10kΩ
Frequency response 20Hz - 40kHz (±0.1dB)
SNR XLR output: 122dB
Headphone output: > 120dB
Crosstalk XLR output: < -120dB @ 1kHz
Headphone output: -118dB @ 1kHz
THD+N XLR output: < 0.0004%
Headphone output: < 0.0005% (1kHz, 1000mW @ 32Ω)
IMD XLR output: < 0.0004%
Headphone output: < 0.0005% (1000mW @ 32Ω)
Headphone output impedance Jack 6.35mm: 0.1Ω
Jack 4.4mm: 0.2Ω
Headphone output power ~ 2000mW @ 32Ω, Jack 4.4mm
General
Alimentation AC 115V / 230V, 50/60Hz
Consumption < 15W
Dimensions (excluding feet and connectors) 220 x 170 x 50mm
Weight 1.6kg
Color Black
Package 1x Audalytic HP70
1x Power cable
1x Remote

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