Solid State Logic XLogic Alpha Channel Manual page 9

Adding the DI signal: Adding the DI signal: Adding the DI signal: Adding the DI signal:
- The direct signal either from a DI box or from the amplifier itself is input to the INSERT RETURN jack.
Pressing the SUM button will add the mic and DI signal together.
- The PHASE button can be used to alter the relative phase between the two signals. By 'flipping' the
phase you will notice a drastic change in tone and you may find this negates the need to EQ the signal. It
may also be worth experimenting with the distance of the mic from the speaker grill at this point. This
again will alter the relative phase of the two signals and consequently it's tone.
- The two signals can now be balanced by adjusting either the pre-amp input gain or the output of the
amplifier if available.
EQ'ing the signal(s) EQ'ing the signal(s)
EQ'ing the signal(s) EQ'ing the signal(s)
You have the choice to EQ either the mic signal or both the DI and Mic.
- If the POST EQ button is depressed then the DI'ed signal will not be affected by the EQ.
- The EQ could well be used to add a little bottom end to the signal if recording bass guitar. The fully pa-
rametric mid- band can be used to pinpoint and pull out any offending frequencies. The HF band would
be ideal in a situation where a significant amount of noise is present in the signal which can sometimes
be the case with guitar and bass amps.
Lite Limit Lite Limit Lite Limit Lite Limit
Finally it may be worth experimenting with the Lite Limit function. This appears right at the end of the
signal chain, and it's affect will be present at both the left S/PDIF signal and the analogue output.
It's intention is to provide a dynamic safety net before the A/D converters to prevent overload. Be careful
to check that the limiter is not infringing on the dynamic range of the signal too much. Due to its trans-
parent nature, the Lite Limiter can be hit quite hard before any detrimental effects are heard.
The amount of limiting action is determined by the level of signal going into it. This means there is no
single control to govern the action, but it will be a combination of pre-amp gain, insert section, EQ and
output gain.
On most digital systems you tend to avoid the red 'clip' LED because this usually indicates that the con-
verters are clipping – usually not a very nice sound! On the Alpha Channel however, hitting the clip
point indicates that the Lite Limit is working and digital clipping is being avoided. In this situation the
output meter will hit the top and the Lite Limit button will glow red.
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