Perreaux SXH2 ユーザーズマニュアル

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15
Single 
Channel 
Block 
Diagram 
 
Input Stage  Utilising a stable current source, along with accurate current 
mirroring circuitry, the input stage of the SXH2, in combination 
with the overall circuit topology, provides precise detail 
resolution and definitive sonic transparency. 
PCB Layout  Special attention has been lavished on the PCB layout.  The unit 
is symmetrical in design with each channel being isolated from 
the other.  The super clean custom designed power supply is 
physically segregated from the rest of the sensitive electronics. 
Signal 
Ground 
Special attention has been paid to ground planes to maintain 
sonic purity.  All signal grounding is optimised to provide a 
platform for a black background and increased dynamic range. 
Gain 
Selection 
Two gain settings are available, enabling optimum performance 
and listening levels to be achieved from both high and low 
impedance headphones. 
High Power 
Output 
The output stage is capable of delivering 1.0W
RMS
 per channel 
into a 64
Ω
 load and is stable down to 4
Ω
, enabling the SXH2 to 
effortlessly drive a vast array of headphones with the control and 
authority that people have come to expect from Perreaux 
products. 
Dual 
Outputs 
Two stereo headphone jacks give the option of connecting two 
sets of headphones, allowing another party to be enveloped by 
the detailed and dynamic musicality of the SXH2. 
Note:  Please ensure that the resulting impedance of the two 
headphone sets is not below 8
Ω
.  Use the following 
equation to calculate the total impedance:  R
T
 = (R
1
 * R
2
) / 
(R
1
 + R
2
).