Marshall JMP 1 v 9000 - Preamp Comparison

Quick side by side with the Marshall JMP-1 and 9004 preamps. I'm using a Synergy SYN5050 power amp, Marshall 1960TV cabinet and a Sennheiser e609 microphone.

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[hayabusa]

I have the Marshall 9001preamp / and
50+50 9005 power and its kicks ass
Very Heavy have them both in 6U rack with handle on top I have mine running thru 2 Alec 417’s 8 ohm 2 separate cabs in stereo it’s killer I placed twin fans on my unit to pull the heat out but I like the setup . Good to seem someone playing some of the older rack gear .

[claudevieaul]

I've played a 9004 for ages back in the day, and it sounded OK, it had gain aplenty but it didn't have the warmth like a valve amp - which is what I was after.
The JMP1 is a deserved legend, and I'm quite surprised that they're actually not that far apart sonically.... I've heard it combined with a Marshall 19" EL34 100/100 poweramp and thát is absolutely to die for.

[johanhansson]

The tube in Jmp-1 is not just for show it actually overdrives. It has 3 distortion stages in series, op-amp, diode clipper and tube.

[noworries]

I have both...I love mainly the crunchy OD1 channel (JMP-1), one of the best sounding Marshall tones ever, even directly through the underated speaker sim output...with a EL34 power amp this thing is killer. The 9001 (i.a. other amps/gear) was used on Bryan Adams "Waking up the neighbours" by Keith Scott
The 9004 has a more classic Marshall vibe to it (no hi- gain!) and you have to tweak a little longer to find its sweetspot...of course, like every Marshall, both like to be boosted with TS etc.

[thechannelforeverything]

I really like the fact that the 9000 has that 90's extreme tone vibe. And it's not that the JMP is bad, I would just rather play a DSL or TSL cause they just sound better to my ear.

[MessianicJudaism]

After watching two of your videos back to back, I've decided to purchase the Marshall JVM 1.

I do have a question, though. Does the amp itself have an affect on the tone given by the pre amp? Meaning, can one amp give a brighter sound over another brand of amp?
Thank you for this video.

[edwinwierzbicki]

I assume that 9004 is a mosfet based preamp... Wonder, How the JMP-1 compares to 9001 preamp... I had JMP1 and I couldn't get the classic hard rock bluesy, crunchy sounds I wanted. I bought 9001 next, but... never used it, because I sddenly bought 1987x amp... So I had no time for 9001... Any thougts if 9001 gets closer to JCM800 or plexi character better than JMP1?

[mmrseed]

I find the 9004 useless on its own and its mids I find unlistenable..however if I scoop the mids and reintroduce the mids with an EQ and boost pedal then I absolutely love the sounds I get