AURORASOUND - Arta pura.
Produse lucrate extraordinar si devenite arta prin insasi simplitatea lor.
O imbinare fericita intre ideile creatorului, materiale placute vederii si o
muzicalitate atragatoare, ce provoaca dependenta.
Amplificatoarele si Phono Stage-urile AURORASOUND au o recunoastere
la nivel global si se bucura de o adevarata "vanatoare" din partea doritorilor
de sunet de calitate exceptionala la un pret rezonabil.
Nu doar exceptionalul Integrat HFSA-01 dar si, in mod special, Phono Stage-urile
AURORASOUND sunt considerate adevarate referinte in categoriile lor de pret.
MADE IN JAPAN, lucrate exclusiv manual, din 1 Septembrie 2024 oentru prma
data si pentru multi ani de aici incolo in Romania.
HFSA-01
This is a hybrid stereo integrated amplifier that takes advantage of the advantages
of both vacuum tubes and semiconductors.
It has an output of 14W+14W using EL84 vacuum tubes and is equipped with bass
and treble tone controls.
The input section has a built-in phono equalizer, is compatible with MM cartridges,
and has 3-channel RCA unbalanced input terminals.
The speaker output has terminals covering impedances from 4Ω to 8Ω, and it also
has a headphone output.
Both sides of the front panel are accented with mahogany wood, creating a retro design
that creates a relaxing audio experience.
Although it has a fairly conventional configuration, it has been developed as a product that
offers satisfactory sound quality and performance, incorporating the basic functions of an
audio amplifier that will always be required, from high-resolution digital sources to analog records.
Features
The output vacuum tube EL84 is a pentode equivalent to the 6BQ5, and is operated in
push-pull mode, resulting in an ultra-linear connection with excellent distortion and
frequency characteristics.
To drive the EL84, we have developed a unique circuit that uses the OPA604A from
Texas Instruments, a standard high-precision operational amplifier for audio, to configure
a phase inversion circuit and achieve ideal push-pull drive.
The tone control section uses a CR type that is easy to hear, so you can adjust the rich bass
or gentle treble to your liking, even with a small speaker.
The phono equalizer section corresponds to a general-purpose MM cartridge, and the NF type
circuit with excellent SN characteristics is composed of Linear Technology semiconductors.
The power supply section separates the vacuum tube circuit and the semiconductor circuit to
prevent interference at any volume or frequency.
The rectifier diodes are made of ROHM's silicon carbide, which produces the least noise.
The output transformers and power transformers are domestically manufactured to order by
Aurora Sound to match this circuit, and the resistors and capacitors are also carefully selected
and of high quality.
Specifications
Output:
Maximum 14W + 14W 8Ω load
Inputs:
Phono-MM, Gain 40dB,
Cartridge load impedance 47kΩ, RIAA deviation +/-1dB
RCA unbalanced, CD, LINE-1, LINE-2
Tone Control:
BASS +/-12dB
TREBLE +/-12dB
Frequency Response:
10Hz ~ 40kHz, -3dB, Tone Flat
THD+N:
0.08%, 1kHz, 2W, A-weighted
SNR:
93dB, LINE IN-OUT
Various functions:
Tone control path DIRECT switch
Stereo/Mono switch
Headphone output
Power supply voltage:
AC100V 50/60Hz
Power consumption 150W
Dimensions (W x D x H): 360 x 320 x 145 mm
Weight: 10.3 kg
Color: silver