Hello

The A110 and A111 VCOs do have Hard-Sync.

But for FM you will prefer the soft sync (it locks on overtones). The
A111 does provides it direct (socket 'S-Sync'), the A110 has it prepare
internall, but there is no socket on the outside. I added a switch to
one o my A110s, so I can switch between hard or softsync.

Florian

On 23.06.13 14:13 , anoop.sahal wrote:
> I have not seen this feature in the VCO's of Doepfer but old analogue synths had it.
>
> It would help improve FM synthesis.
>
> Hard synchronising VCO's would be a desirable feature if the phase at which each VCO is at is continuously adjustable (1 to 179 degrees) , before locking it.
>
> I do not have a system yet so apologies is the above post is stupid.
>
> Regards
>
> Anoop