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CLASSÉ DESIGN PHILOSOPHY

 

 

 

1. REPEATED LISTENING DESIGN SESSIONS: 

Fine tuning of sound by exchanging and mixing of parts (transistors, capacitors, wiring, PCB boards 

etc.), and adjusting many specific operating voltages within proper engineering ranges, producing an 

overall sonic recipe giving the most natural harmonic realism of music typical of instruments in a 

live performance. 

 

2. UPGRADABLE SINGLE CIRCUIT DESIGNS: 

All Classé products (all preamps and all amps) share exactly the same circuit design philosophy 

(excluding moving coil and moving magnet phono circuits). This means all amplifiers and all high 

level circuits of the preamps benefit from the same design goals. Similar circuits are then tailored to 

different power levels etc. Differences between less expensive models and more expensive models 

are parts quality and compliment, power supply extravagance and the amount of filtering etc., as 

well as features and packaging. 

 

This means that for years Classé has been constantly sonically fine tuning and technically upgrading 

this circuit design and its application, thus reaching a very high level of natural musical enjoyment, 

as well as excellent reliability which benefits all models - least expensive, most expensive, preamps 

and amplifiers alike. 

 

3. EXTREME LONG LIFE IN REAL WORLD CONDITIONS: 

Choosing the best attainable quality parts and materials combined with the advantages of the two 

above-mentioned areas provides Classé owners with years of proven trouble free reliability and 

musical enjoyment. 

 

 

Summary of Contents for 175-A

Page 1: ...CLASSÉ AUDIO 175 A POWER AMPLIFIER 175 A OWNER S MANUAL ...

Page 2: ...me design goals Similar circuits are then tailored to different power levels etc Differences between less expensive models and more expensive models are parts quality and compliment power supply extravagance and the amount of filtering etc as well as features and packaging This means that for years Classé has been constantly sonically fine tuning and technically upgrading this circuit design and i...

Page 3: ...175 A OWNER S MANUAL TABLE OF CONTENTS UNPACKING SET UP 4 GENERAL CONNECTIONS 5 CONNECTIONS FOR REGULAR OR BALANCED INPUTS 7 WARRANTY 8 SPECIFICATIONS 10 WARRANTY REGISTRATION 11 ...

Page 4: ...sible Place the 175 A at or near its final set up position allowing 8 inches at the rear for tightening the speaker output connectors The power transformer in the 175 A is located at the front center of the unit Ideally a few feet should separate this area from components which potentially could pick up hum These include preamplifiers turntables and interconnect cables In terms of providing adequa...

Page 5: ...S MANUAL STEREO Check the setting on the STEREO MONO toggle switch located above the input jacks on the back of the unit The lever should be closest to the position marked STEREO Input and output connectors are clearly marked on the back of the amplifier Left Right connections are oriented from the front of the unit Stereo output connections are marked above the connectors Use only high quality in...

Page 6: ...O The MONO input is the left channel input as marked The unused right channel input is automatically disconnected The output connections are marked BELOW the connectors The MONO positive is the left positive the MONO negative is the right positive Repeat the above MONO settings and connections on the second 175 A to be used for the other channel Please remember that the negative output connection ...

Page 7: ...automatically disable BALANCED INPUTS A balanced preamplifier and balanced interconnects are also required For use with balanced preamplifiers other than Classé the wiring of the 3 pin XLR connectors must be matched to that of the Classé 175 A which are wired as follows PIN 1 GROUND PIN 2 POSITIVE NON INVERTED SIGNAL PIN 3 NEGATIVE INVERTED SIGNAL If the pin configuration of the preamplifier diffe...

Page 8: ...ice of any kind it is necessary toOBTAIN PRIOR FACTORY AUTHORIZATION AND SHIP THE UNIT PREPAID TO THE CLASSÉ FACTORY For units coming from outside Canada contact the factory for our forwarding address Units shipped directly to our Canadian address from outside the country will be stopped at the border causing extensive delays or return of the unit to the sender The warranty shall be void and of no...

Page 9: ...ono operation thick curved faceplate with sculpted one piece handles Available in both Satin Black and Soft Shadow Silver finishes 175 A SPECIFICATIONS Frequency Response Sensitivity Input Impedance S N Ratio Rated output 8 Ohms 4 Ohms 2 Ohms Dimensions Gross Net Weight Gross Net 20 Hz to 20 KHz 0 1dB 1 35 Volt in for rated output 70 KOhms More than 100 dB Stereo Mono 175 700 Watts 300 1400 Watts ...

Page 10: ..._____ AUTHORIZED DEALER________________________________________________________ PURCHASER S NAME_________________________________________________________ STREET ADDRESS____________________________________________________________ CITY________________________________STATE PROV ____________________________ COUNTRY________________________ZIP POSTAL CODE__________________________ I BECAME AWARE OF THIS...

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