Alesis ANDROMEDA A6 User Manual download pdf (Page 10)

Tuning issues

Questions:

1. Mar 27 07:46:08 2004

From: CBVGUITAR at aol.com (CBVGUITAR@aol.com)

Subject: [A6] A6 won't stay tuned

I'm a newbie to analog synthesizers so I'm not sure as to the severity

of my problem. My A6 is behaving strangely on all of its presets. The unit will not go in tune.

Sometimes it's about a semitone out and other times in dips out of tune while be played. I've

tried hard and a soft reset, autotune....nothing has helped.

Does my A6 need servicing and what that might entail?

Answers:

1. Analog synths with real analog oscillators require a warmup period of

about 15-20 minutes before the electronics and tuning have stabilized.

When any analog oscillator is powered on cold, there is a tuning error

which goes away as the circuit warms up to ambient temperature. This is because the linear

voltage to exponential current converter in each analog oscillator circuit (32 total in the A6)

has a temperature factor in its transfer function. That is an unavoidable fact of life with

analog oscillators.

2. Jul 22 12:33:32 2003

From: protokol13 at hotmail.com (Tony J)

I usually turn on my A6, leave it on with background tuning OFF, and Temp

tuning ON. I leave it on for around 10 minutes and then I play some pieces

to see if it's in tune. If it's still out of tune I use auto-tune. I

rarely use background tuning because I actually hear weirder tuning problems

when it's on, and I only turn it on if I need the A6 to be in tune quickly.

Just keep this in mind "auto tune" AFTER the A6 warms up, I find it sounds a

lot better.

3. Myself, I find that the best sound out of the A6, as a whole, comes with

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Alesis ANDROMEDA A6 User Manual Page 10