Hello Group! I am about to receive my new Marshall Origin 50 watt head on Monday (March 5th). I'm excited as hell! I was looking for a 50 watt platform to go through my hand made Tweed 1X12 cab with a EVM12L that I built three years ago. I just had a bad expierience buying a Fender Bandmaster VM with a blown digital effects board. The repair facility could not obtain this part from anywhere. I wound up returning it to Reverb.com and was out all the repair money, two 5 hour round trips and $55 to ship it back. I was really devistated until (by accident) I stumbled onto this Origin series amp. I owned a few Marshalls in my day but this one really caught my eye. My question to you guys is this; normally amps come through with pretty basic tubes. I have no idea what the Origin comes with as far as stock tubes. Being the perfectionist that I am and the gear freak I've always been, I'm already wanting to upgrade the 12AX7's (EC83s) and the EL34s. Any suggestions as to a good upgrade or are the stock tubes pretty good? Thanks guys (and gals)
The valves in the Origin 50 are selected to give best tonal quality for the design.
I changed out the EL34s to Mullards and the 12AX7s to JJs.
This gave the amp a warmer, fuller tone and reduced the harsh high-end.
Sorry for reviving an old post. Just curious to know what tubes you went with in the end? I've had my Origin 50h for a couple months now and I love it. It sounds good to me just with the stock tubes, but I'm interested in experimenting a little with the preamp tubes to see how it effects the tone. I think there's probably a little room for improvement. From what I've gathered the stock tubes are Marshall rebranded Chinese 12ax7's in V2 & V3, JJ ecc83 in V1, and a pair of JJ EL34(ii?) for the power tubes. So far I've only tried a Tungsol reissue in v1, which was only a subtle change from the JJ. I've ordered a JJ ecc803s for the v3 phase inverter position and I'm hoping this will help reduce some of the noise and high-end harshness. Not touching the power tubes yet to avoid having to go to an amp tech for biasing.