fleabag

PS as can be seen , none of the Global switching presets are in use, though i do use the mid-scoop when switching to the FET channel. That doesnt make any difference, because the loud hiss was coming from the tube channel. When i said the FET channel was quieter, its a lot quieter. Have to have ears to the cab to hear any hiss from the FET channel. But having said all that, i wonder whats happened since yesterday - the hiss is now barely audible - i'm about 8ft from the amp right now, tube channel on, and i can only just hear the faintest of hiss. Yesterday it was so loud, i turned the amp off.

These are my settings and the amp has been warming for 10 - 15 mins now and cannot hear any hissing unless i stick my ear to the cab. test done with the knobs set in this photo. no bass connected

@agedhorse 1. Is the amp quiet without using any pedals? Yes, the hiss is loud without any pedals. With the compressor on, its much worse as you mention, but direct into amp, the tube channel has loud annoying hiss. 2. If you are using a lot of treble boost, or if you have the tweeter attenuator all the way up Both treble knobs are off completely. My PJB cabs dont have tweeter attenuators, although they may have tweeters ? Not sure on that - they're PJB C4 - 4x5" - 2 cabs 3. If you are using an active bass, be sure that your battery is good. Some active electronics packages can get very noise as the battery voltage falls. Bass is passive 5. Is the amp quieter with the tone shaping switches disengaged? No 6.With nothing plugged into your amp except the speaker, is the amp quiet with the channel gain, channel volume, master volume and eq all set to the 12:00 position? When switching between the tube channel and the FET channel, it's normal for there to be a just couple dB more noise in the tube channel. The only way to stop the hissing is to wind the channel volume off or master volume off. Doesnt matter where the other knobs are. But that was yesterday Tonight, hissing has almost completely gone. Maybe it needs warming up ? How annoying - wonder whats going now now ? Where do you typically operate the controls?  I'll be back with a photo - much easier

Missed this for some reason Gran, apologies, but going into the amp direct does not make a difference

TF talking sense

This may be a tad trickier to play, but it's fabulous once you get it sorted. Timing needs to to be slick. Love that fretless tone

Yup, Jabba and Andy are thre guys in the know

Something to do with a toilet ..?

Something like these - they're about 3mm - ish

Seller is not supplying a roadie, so i'm out https://www.ebay.co.uk/itm/Trace-elliot-bass-cab-8x10-1084h-Brand-new-with-tags-Very-rare/253086459558?hash=item3aed20e6a6:g:76wAAOSwZKBZM~EA

Yup, rare as rocking horse lips. When i found dodgy pre-shape and graphic in/out switches on my series 5 GP11, i got my amp tech to keep the outer switch covers, just to keep it original, knowing how hard they are to find. To make it a bit worse, my switch covers are TE green, so another reason to keep them. He replaced the switches beneath the covers and it was far from easy apparently. Keeping the original green covers was the problem, but he managed it.

Yup thats him Ricky, horse, not donkey. Apologies if you're reading this AH Spoke to Derek at Watford Valves and a Sovtek 12 AX7WC is on it's way.

Ah, all i heard was you didnt understand the post. You never mentioned about not knowing about Sid, but Skinny to the rescue

In my experience of fretless playing, the meat of your finger needs to be behind the fretline, so the side of the fretting finger meets the fretline. Because fingers are quite fat, if you play directly over the the fretline, then part of your fat finger will be behind the line and some past the line, and will make the note sharp. You will also find that the further up the neck you play, this finger position will change slightly, due to the physics of fretless.

Once it's finished, how will you keep it upright ?

I'm gonna get a new head

You have a start fetish ? Is that what they're calling it these days, Dan ?

Whoa ! Love the missing head, but not the bum note

I bet there's oil under all that gloop. Could be a bargain if you have commercial drilling equipment, or a poor grip on reality

Its got a puncture

Imagine winding up the treble on your amp, the tweeter on your cab, the tone wound up on your bass, all to the max. The chances are you will probably get some hissing sound. Thats what hissing is, in a nutshell.

Sounds like a bargain.

So putting Manchester , say, under your avatar means some bottom feeding scumbag will know your exact address and relieve the owner of them there boutique planks ? I think not

Just had a look at mine and yes i have the social blocking option. What does that do in the real world Silvia ?

Aha, i dont know what that is and so dont use it, so good that you found the reason. I'm still on win 8.1 with FF