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Arcam P-25 Owners Question

Discussion in 'AV Receivers & Amplifiers' started by Brad_Porter, Feb 10, 2003.

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  1. Brad_Porter

    Brad_Porter
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    Hi all,

    Maybe one for Arcam or an avid 3-Channel P-25 user...

    On the back of my Three-Channel Arcam P25 power amp, I have a switch (for L and R channel and a separate one for the C channel) called GAIN, which has settings for both 'Normal' and 'Low'. In the P-25 manual, the 'Low' setting has some relevance to ‘specialised Home Theatre set-up’.

    I am currently using 'Low' as this levels out nicely when calibrating my speakers with test tones and an SPL. The ‘High’ setting seems to have me reducing my pre-amp output by 3 - 4 db for the L, R and C channels.

    The question is, what is this for (why have a gain button anyway?) and is this general practise to have this set to 'low' when using it with a HT set-up.
     
  2. John Dawson

    John Dawson
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    Hi Brad -

    The high gain setting corresponds to the standard gain of most Arcam power amps (about 800mV for 100Watts into 8 ohms) - so must be used when bi-amping with Arcam integrated amplifiers.

    The low gain setting is 1V/100W sensitivity (i.e. THX sensitivity).

    John Dawson (Arcam)
     
  3. Brad_Porter

    Brad_Porter
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    Thank you John - so I am right to use the ‘low’ setting for my set-up. Cool.

    As always, another demonstration of Arcams wonderful support on wonderful products! Thanks again, John.
     

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