funkydoug Posted November 7, 2019 Share Posted November 7, 2019 hi folks, hoping someone with better electrical knowledge than me can help with this. Can a class AB head be used for silent practice? Like an ABM head used without a cab attached, for example? Lots of Class D amps make it clear you can do it, but what about a sled? Cheers, Doug. Quote Link to comment Share on other sites More sharing options...
VTypeV4 Posted November 7, 2019 Share Posted November 7, 2019 Depends on the type of class A/B amplifier.. If it's an all valve affair or has a valve output stage (Boogie 400+, SVT CL, CTM100 etc) then the answer is usually a firm 'no'.. The valves / output transformer need to 'see' an electrical load to prevent damage / meltdown. Some may have an internal dummy load / output mute to facilitate no speaker connection but this is not that common - check the spec. On the other hand, if it has a transistor output stage (as per Ashdown ABM, SWR SM, SVT 3 etc) then it will be fine - I used to use my old Trace 400SMX as just a pre-amplifier stage for recording many times. No idea what a sled is but I hope this helps.. 1 Quote Link to comment Share on other sites More sharing options...
funkydoug Posted November 7, 2019 Author Share Posted November 7, 2019 thanks for the info @VTypeV4, much appreciated. Good to know this is an option for Trace / ABM type amps. (by sled I mean 'lead sled', sometimes used as a nickname for heavy solid state amp heads). Quote Link to comment Share on other sites More sharing options...
VTypeV4 Posted November 7, 2019 Share Posted November 7, 2019 All good. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.