Microplane 901 ユーザーズマニュアル

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Thank you for purchasing the Model  901  headphone amplifier.    It is 
designed to be completely  reliable and easy to use. However, we ask that you 
take the time to familiarize yourself with some of the more important operation 
instructions in this manual to avoid most common user problems.  
The Model 901 amplifier is an  ultra high fidelity  monitoring device.  By 
revealing 
all of the contents of your signal, we hope it helps you achieve a new 
level of excellence in your audio recordings.   
Feel free to check out  our  internet web page for the latest information 
regarding your amplifier.  You can always find the latest owners manuals and 
other technical documents at:  
http://www.gracedesign.com/documents/docs.html  
 
MODEL 901 FEATURES 
 
• 
Balanced XLR analog inputs 
• 
Unbalanced RCA analog inputs 
• 
AES, SPDIF and TOS LINK digital inputs 
• 
High current output amplifier drives 8 Ohm loads 
• 
24 position level attenuator with .05dB channel  matching 
• 
Internal linear power supply 
• 
High current, low noise torroidal power transformer 
• 
No electrolytic capacitors in the signal path 
• 
Highest quality metal film resistors 
• 
Ultra low distortion 24 bit DAC accepts sample rates up to 96kHz 
• 
Automatic digital de-emphasis filter 
• 
10dB gain boost switch for -10 sources 
• 
Fast, musical transipedance output amplifiers 
• 
Precision instrumentation balanced input amplifiers 
• 
Sealed gold contact relays for input select and gain boost switching