Audion 300B User Manual

Power amplifiers
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Silver Night

Power Amplifiers

User Manual

Models Covered
Stereo 300B - 7 Watt Mk1 & 2
Stereo Integrated 300B - 7 Watt Mk1 & 2
Stereo PX25 Mk2 – 8 Watt
Stereo Integrated PX25 - 8 Watt Mk2
Parallel Single Ended 300B Mk1 & 2
Push Pull 300B Mk1
Revision 1.02 Silver Night
- 1 -
Audion International

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Summary of Contents for Audion 300B

  • Page 1: Power Amplifiers

    User Manual Models Covered Stereo 300B - 7 Watt Mk1 & 2 Stereo Integrated 300B - 7 Watt Mk1 & 2 Stereo PX25 Mk2 – 8 Watt Stereo Integrated PX25 - 8 Watt Mk2 Parallel Single Ended 300B Mk1 & 2 Push Pull 300B Mk1 Revision 1.02 Silver Night...
  • Page 2: Warranty

    Congratulations on your purchase of the World acclaimed “Silver Night” triode amplifier from Audion. Your Audion Amplifier is the result of nearly 20 years’ exhaustive research and development culminating in our current world class product. The chassis is made of anodised aluminium designed to minimise magnetic interference and reduce internal noise to an absolute minimum.
  • Page 3: Getting Started

    Carefully remove your Audion Amplifier from its packaging and store both the box and the foam in a safe place, should, in the unlikely event that you ever need to return your Audion to us for maintenance, upgrading or servicing. The packaging has been specifically designed to protect your amplifier.
  • Page 4 Push/Pull uses 6922’s in both the left and right hand sides. The Silver Night P.S.E. uses a CVX100 in the left hand side and a CVX120 in the right hand side. All Models use either 300B or PX25 valve/tubes in the rear sockets depending on the model ordered.
  • Page 5: Installation

    WARNING – Do not attempt to remove or replace valves/tubes whilst your Audion is in operation, as by so doing you could destroy the amplifiers circuitry – risk electrical shock to yourself and invalidate your Audion’s warranty.
  • Page 6 The top white sockets are for the Left input(s) the bottom red sockets are for the Right channel(s). Next, connect the loudspeaker cables to your Audion. For all Stereo models the left and right channels are marked by red/black colouring and also ground &...
  • Page 7 Finally Check again – make sure everything is correct. Using your Audion Congratulations you are now ready to switch your Audion on. But first we recommend turning the volume control on the front panel anti-clockwise to zero. On the rear panel locate the on/off button.
  • Page 8 1 to 5 and the Record button allows recording via RCA pair No. 6. In general use your Audion should give many years of trouble free use. The anodised aluminium chassis should be wiped regularly with a clean lint free cloth to remove dust.
  • Page 9: Technical Specifications

    Noise: < (CCIR) – 90 db Consumption: 145 Watts Tubes: 2 x 300B, 1 x 5687, 1 x 6922 Stereo Mk 2 Power: 2 x 7 Watts Class A into 8 Ohms at 240V AC Load: 4 – 16 Ohm Nominal Distortion @ 1Watt: <0.1% No Feedback...

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