Hi,
- Background
We have been using a Yamaha LS9-32 in our Church for many years now - and have been very happy with the equipment.
Unfortunately, it is now starting to show its age and has recently developed a few faults that are proving difficult to get reliably repaired.
I have been offered a “New in Box” LS9-32. However, that just delays the inevitable rather than solving it.
So, we are looking to replace the LS9-32 with something else that is current and supported. One of these options being the A&H SQ7.
We have been talking to some touring theatre companies that we know who use an A&H SQ desk - and they rate them highly.
We are (in particular) looking for a “drop-in” replacement for our existing desk in the first instance. We currently have an analogue snake between the mixer and worship platform and most of the 32 inputs and 16 outputs are fully utilised - hence the SQ7 with the local I/O already fitted fits the bill. If we ultimately decide on an A&H SQ as a replacement - we will look at the various options, and may decide to go for an SQ5 or SQ6 and digital stage boxes (dependent upon the total cost). But that’s a post for another day…
My initial problem is internally with the number of available MIX/MATRIX and AUX busses available to us. We had “maxed out” the LS9-32 in this respect and we are finding it difficult to locate a digital desk with similar features - so some ‘rearrangement’ and/or compromise may have to occur?
We have a particularly ‘strange’ requirement in that we have four separate ‘zones’ to consider - each with their own particular sound challenges. We have our Main Worship Hall, a separate Overflow, an Overflow-Overflow (aka the Recreation Hall) and an audio feed to our live streaming desk. All of these are in stereo. On the existing LS9-32 these are via the four stereo MATRIX mixers. I can reconfigure these as the MAIN LR output for the Worship Hall and the three MATRIX mixers of the SQ7 for the others. So far so good.
My problems occur with the reduced number of MIX/AUX busses on the SQ7 and the effects patching.
That is the background. I will now post a series of questions that I have for some help if that is OK?
- Question 1
Firstly - the use of Digitally Controlled Amplifiers (DCA).
On our existing LS9-32 we group the instruments into a stereo DRUM group - and a stereo INSTRUMENT group. These two groups are muted from a single MUTE group. The individual channel faders adjust the relative amount of each drum / instrument in each group mix and the group fader adjusts the total amount of DRUM and INSTRUMENTS to each of the separate MATRIX mixes. The groups on our LS9-32 serve no useful purpose other than to adjust the relative gains.
Am I right in assuming that I could allocate (say) DCA #1 to the DRUM input channels and DCA #2 to the remaining INSTRUMENT input channels and control them individually from their input channel faders and as a ‘group’ via the DCA fader? If I mute the associated DCA fader - would that automatically mute all of the input channels assigned to that particular DCA channel?
On the LS9-32 we could vary the amount of DRUMS verses INSTRUMENTS to each of the MATRIX output channels separately. I am guessing that I will not be able to do this with the above configuration any more? My proposal is to adjust the sound mix for the MAIN LR outputs (Worship Hall) and to feed the MAIN LR mix into each MATRIX for the other areas. I will need to introduce some congregation singing microphones into the MATRIX mixes - but this will be a question for the next post…
Cheers,
Dave