Suicide by Weaponized Sound. MarshallWMD Just finished cleaning up a 9200 and would like to run the Jmp1 with it. I have the 9100 too but waiting to clean it up to compare compression curve among other things later. I have a few questions about signal path but first I’ll give you some idea of what I’m thinking. I bought these because they are unique and one of the only good looking Power Amplifiers because They don’t look like computer equipment for predicting weather. Dual mono block meant I could do a lot of different things at once. The first thing that came to mind was tube testing side by side instantaneously back and forth or simultaneously. Preamp and power. Same type, different brands... NOS vs New. Also thought I could test different types of power tubes...El34 vs Kt88s. I have kt88s in my jcm800 but I’ve never had anything else... I switched without even trying the el34s. Stupid I know but Corgan was gospel. Lol I believe I will have to be able to bias them separately for this. Please chime in with what you know. Is it possible for this amp? I’m fairly certain the entire amp is completely separate from one side to the other. I know they will need separate bias just wondering if this amp is capable. Any amp is...just a matter of time and money.... like my friend use to say.... anything is portable if you’re willing and able to carry it. For some reason even the stock tubes barely fit...well I’m guessing these are stock but they probably aren’t...jjs. Kt88s will need a higher ceiling which is ok because I will be making a custom enclosure for this chassis to make it look more like a traditional amp head. Maybe a deep yellow stained flame or curly maple playing off the gold face. Probably build it so that the Jmp sits well protected below the 9200 so that’s I can install a clear top window to see inside in addition to the front face window inside maybe some yellow leds to beam out if the tubes themselves don’t light up the interior space as I'm fairly sure they don’t do enough. Its too sexy in there to be sitting in the dark. I like the ominous glow of other amps that have employed lighting. I just want to make something beautiful for fun. I was also thinking of the advantage of having both kt88s and el34s running at the same time. I can test into separate cabs or separate sides of the same cab. Testing purposes are best left same cab separate sides. Performance would be separate cabs or if I wanted to be fully crazy I could try each side of the amp into each side of either cab. Giving each amps representation into each speaker type. I have uk 8 ohm vintage 30s in a Randall cab that is stereo capable, 4 ohms per channel stereo and 8 ohms mono Chinese 16 ohm Greenbacks in a peavy cab that is stereo capable, 8 ohms per channel and 16 ohms mono Uk 8 ohm g12 65s in a jcm800 B cab that is mono only... I could convert but why it’s still stock. Have the jcm800 1983. This 9000 is just fun with the science of sound. So for all my imagination I’m still behind the curve when it comes to the technical side.... after mono...it gets a little more confusing than I can keep up with. I can’t find a good manual and I’m not entirely clear how I would hook up these various arrangements. Starting with the basics how should I be hooking this up with my Jmp into 9200, into an 8 ohm cab. I’m fairly sure but with this much power and cash in gear...I’d rather ask first. Jmp out from left or right...does it matter? Into input a or b power amp side then out of a or b output... strictly and respectively, into mono section of 8 ohm cab with the 9200s 8ohms switch slid into place. Option 1 Jmp out from left and right into input A will the signal input A split the signal and send to each of the A outputs? If I hook up two 8 ohm cabs what is the resistance for the power amp setting? Option 2 Jmp out from left and right into input A and B then out of both A and B outputs to 8 ohm cabs in mono... option 3 Jmp out from left and right into input A and B and out of both outputs of both A and B into either side of separate cabs so that each type of speaker is represented by each tube type sending from the power amp. Example power amp A into one half of Vintage 30s and one half into Greenbacks and power amp B into one half vintage 30s one half Greenbacks. The crossover comes via the double outputs of both A and B. Option 4 Last but definitely not least... Jmp1 out from both left and right into both A and B and one cab per power amp out that’s 4 cabs. We won’t even talk about mono vs crossing over to mix speaker types. Option 5 I forgot the very last option... the Nuclear Bomb of the MarshallMonster....the WMD of WeaponizedSound. Buying another Jmp1 and hooking up both the 9100 and the 9200 in the arrangement above.... with 8 cabs...that’s 4 full stacks of stupidity.... and at least one man with bleeding ears and a serious concussion.... bludgeoned to death by his own Frankenstein Amp Monster....Suicide by Sound. Now to a logical extreme...probably somewhere within the first 4 options but anyone willing to amuse us all... how would each option work... am I close? My current cab arrangement without modifications are limiting... I would need to re wire the 16 ohm down to match my 8 ohms. The 9000 series only have 8 and 16... no choice for 4 but I feel like I don’t need it. Im sure I’m missing something in regards to ohms once I enter stereo...I’m almost too tired to think....I’m lost in my own insanity here. Tomorrow morning I have free sonic range of this house and I’d like to have some fun. Thanks in advance. I look forward to hearing from someone as crazy as me....just hope you know more than me.that shouldn’t be too hard. I wanted to keep an eye on the tubes so I’ve left the face and top off the amp.