Orange Amps Forum

Hi everyone

Just a bit of back story, I’ve recently returned to playing guitar after a long hiatus and was looking for a nice amp. Had my eye on a fender super champ and went to demo one, wasn’t really impressed. Randomly they had a second hand tiny terror with a 2x12 cab and I absolutely loved the sound and bought it.

Two weeks later I loved the tiny terror so much that I decided to upgrade to the rocker 15 terror.

The amp sounds gorgeous but there’s a persistant buzz/hum which gets louder from 0.5/1/7/15 watts. The hum is not affected by guitar, gain, pedals or even my house (tested at another) and remains when guitar volume is at zero.

The tiny terror did not do this and from reading some brief forum posts I’ve seen other people with a similar buzz issue but not many conclusive solutions. If I recall correctly one guy replaced for a new one and it was the same. Is this just the rocker 15 terror or should I try replacing tubes/get a tech to look at it?

Cheers.

I swapped out the JJ preamp tubes for some NOS Philips i65's and the Shuguang 12AT7 for a NOS JAN-GE tube. This in addition to changing the JJ EL84's for a pair of Soviet 6P14P-EV tubes. All of this did quiet the hum at high gain settings, but it wasn't unbearable to begin with. Natural channel is nice and quiet, no problems there.

I would think you have some microphonic valves. Play around, swap them and see if it improves.

northernguitarguy wrote: ↑

Wed May 29, 2019 11:24 pm

I swapped out the JJ preamp tubes for some NOS Philips i65's and the Shuguang 12AT7 for a NOS JAN-GE tube. This in addition to changing the JJ EL84's for a pair of Soviet 6P14P-EV tubes. All of this did quiet the hum at high gain settings, but it wasn't unbearable to begin with. Natural channel is nice and quiet, no problems there.

Funny, I've gone a similar route, but replaced my preamp valves with RFT and Tungsram ECC83 and ECC81.

I've gone with 6P14P EV valves instead of EL84 too.

All my amps are now dead silent. All hum has disappeared. I used to accept some hum as normal.... now I know it isn't!!!

Les Paul Lover wrote: ↑

Sun Jun 02, 2019 9:36 pm

northernguitarguy wrote: ↑

Wed May 29, 2019 11:24 pm

I swapped out the JJ preamp tubes for some NOS Philips i65's and the Shuguang 12AT7 for a NOS JAN-GE tube. This in addition to changing the JJ EL84's for a pair of Soviet 6P14P-EV tubes. All of this did quiet the hum at high gain settings, but it wasn't unbearable to begin with. Natural channel is nice and quiet, no problems there.

Funny, I've gone a similar route, but replaced my preamp valves with RFT and Tungsram ECC83 and ECC81.

I've gone with 6P14P EV valves instead of EL84 too.

All my amps are now dead silent. All hum has disappeared. I used to accept some hum as normal.... now I know it isn't!!!

Them Russkie output tubes are the best out there. I found I got a little headroom bump from using them.

Isitheavierthanair?

Did you get his issue resolved ? I’m having the same problem