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Lets get Technical > All Things Tube All about preamp and power amp Tubes.

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Author Topic: MP1 and Cold Exposure  (Read 200 times)

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Chip Roberts

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MP1 and Cold Exposure
« on: Time Format »

Hey dudes,

As we're approaching the dead of winter here in the Northern Hemisphere, a question came to mind; if one were to leave their MP1 in, say, the back of their car on a below 30 farenheit day, what would be the risks?  I've heard guys say, regarding tubes, that everything will be fine so long as you allow the tubes ample time to warm up once you bring them back inside, but I'm curious as the MP1 is rather old and sensitive.
Rack of Death:
MP1 v1.38/Alesis Midiverb II/Marshall Valvestate 8004

Rack of Back:
MP1 v2.01/Digitech GSP21 Legend/MosValve 1160

Boss TU2, Mooer Pitchbox, Boss BF2, Boss CE5, MXR EVH Phase 90, Behringer HB01 Wah/Digitech Control 7/

Custom 2X12 with WGS Retro 30/HM75

Gibson Custom Shop Flying V - Dimarzio X2Ns
Gibson Les Paul Standard - Dimarzio Crunch Lab/Tone Zone
Gibson Custom Shop Explorer - Dimarzio MegaDrive/Air Norton
CC Clarke Superstrat - Dimarzio Evolution
No-Name Superstrat - Dimarzio Steve's Special/HS4/HS4
Ovation Matrix
Ibanez AC130
Washburn Lyon LB21

Other Rack Gear:
Peavey TG Raxx
Yamaha SPX90II

Other Pedals:
Morley Bad Horsie 2
Boss NS2
Digitech Whammy

Carvin X100B
Laney AOR
Marshall JCM800
Marshall Jubilee
ADA Microtube 100
Roland GP8
Rocktron Intellifex Blackface
Lee Jackson SP1000


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Re: MP1 and Cold Exposure
« Reply #1 on: Time Format »

Well that's only -1 C so it shouldn't be a problem.  Generally you need to let vacuum glass things (tubes, light filaments etc) cool down before putting them in the cold or the glass can crack  :facepalm: .
Studio Rig: MP2/MB1 > Eurorack UB2442FX-Pro > TC M-One XL > Behringer Truths (with Truth Sub) / QUAD ESL 63s
Live Rig: MP2/MB1 > Alesis Quadverb > Alesis Midiverb 4 > Yamaha AM802 > B200s/Carvin TS100/DCM200L > ADA Split Stacks/Mesa P112s


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Re: MP1 and Cold Exposure
« Reply #2 on: Time Format »

Treat the amp like you would your instrument. Allow it to acclimatize.
Jack of all trades. Master of none.
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