Marshall 1987x Reissue 50 Watt through 50 Watt 2x12 cab??

[solarburn]

Im guessing I probably can’t crank my 50 watt 1987 reissue through my 2x12 with greenbacks correct? Ive heard the speakers will most likely blow.

2 Redbacks. You could actually use one but you're using a 212. Bet it would sound killer with a plexi. They won't add weight over what yer looking at either.

 

[mallcorn]

Im guessing I probably can’t crank my 50 watt 1987 reissue through my 2x12 with greenbacks correct? Ive heard the speakers will most likely blow.

What greenbacks? 20watt, 25 watt, or 30watt? On the upper end of total wattage you have more wiggle room than on the lower end. Do you run your automobile wide open? Just use good common sense....

 

[1234_thumbwar]

From my understanding a 1987x is only rated for 50w of clean output.

The issue is while Marshall amps sound nice clean most of us want a bit of drive if not full on distortion. A 1987x is capable of putting out more than 80w at full tilt. A 100w head can put out around 170w or so which is why they needed full stacks back in the ‘60s

As for two greenbacks even a pair of g12h30s would suffer at only 60w. If you play with an attenuator you can probably get away with it but that cab isn’t gonna last long with you’re playing uninhibited

 

[Kenny Davidoff]

Im guessing I probably can’t crank my 50 watt 1987 reissue through my 2x12 with greenbacks correct? Ive heard the speakers will most likely blow.

There are many useful mods that can be made to 1987X and the 1959SLP amps but I’d recommend installing a Post Phase Inverter Master Volume. It’s quite simple to accomplish, it’s reversible and really allows you to blend the Bright & Normal volumes (when jumped) at room volume levels.

 

[nasticanasta]

Im guessing I probably can’t crank my 50 watt 1987 reissue through my 2x12 with greenbacks correct? Ive heard the speakers will most likely blow.

Yea you can... some people like the tone..you wonj't blow them.

 

[nasticanasta]

Dump that transistor type for a Weber Mass that uses a real speaker motor (voice coil) thats takes the brunt

 

[gbravo]

I run my 1987X into a 2X12 loaded with G12H30's. I had a PPIV master volume installed. Been running it for years that way. No issues and it sounds awesome.

 

[RadioAD5GB]

Yes, you can. You'll be in that Magickal "cone cry" region, where speakers do all sorts of things to your tone that you'll never realize otherwise........

 

[Creach]

If you have a Bugera power soak (PS1), you can leave it to full volume because it already cut half the output power of your amp.

The 1987x is probably around 80W, with the PS1 at 100% you will be at 40W.

 

[Hiwhat]

We're talking about newer Greenbacks, right? I t bet they will hold up just fine. The speakers are rated conservatively so you can do just that ... You will turn the amp down soon enough as it's just so freaking loud!

 

[purpleplexi]

I blew one of the speakers in my 2061 cab cranking a 50 watt Plexi. It was an alnico too - rated @ 50w each. The other one survived the rest of the gig so maybe the one that died was faulty or on it's last legs.

 

[Gary Branzell]

Not sure these amps actually put out 50. I'd run it without worry especially if you are not cranked to 10 which is typically NOT where these circuits sound best. Maybe 3/4 vol or less is the sweet spot? Speakers are typically underrated too. If you run any kind of boost then be careful. Still think your OK though

 

[Creach]

In some way you are correct, a 1987 cannot have a output of 50W, and i think that this why it is special.
The 4700 pF on the volume 1 make the amp go to clipping very fast.

My jmp 50W is easily 60W volume on 0,5. It is just like a rocket.

Volume at 3/4 it is where you loose the 4700 pF cap.

I like the amp volume on 1 (or just below), if i do remember correctly it is 75W.

 

[Dean Swindell]

Im guessing I probably can’t crank my 50 watt 1987 reissue through my 2x12 with greenbacks correct? Ive heard the speakers will most likely blow.

Do it and see what happens. Speakers tend to go 50 years or more being abused and misused in every way and come out okay. If you mean turn up for use with a band pedals and/or an attenuator, you will not blow them. If you mean dime the amp and wail away, maybe but I kinda doubt it, unless you do it every day for a while.

 

[Mrmadd]

You will probably hurt your ears before you hurt those speakers.

Why starve your beautiful amp head.
It deserves a 4x12 cab like a 1960.
If you live in the US, grab a 1960 from GC used for $500 or under. Only $35 shipping.

 

[guitarbilly74]

We're talking about newer Greenbacks, right? I t bet they will hold up just fine. The speakers are rated conservatively so you can do just that ... You will turn the amp down soon enough as it's just so freaking loud!

Do it and see what happens. Speakers tend to go 50 years or more being abused and misused in every way and come out okay. If you mean turn up for use with a band pedals and/or an attenuator, you will not blow them. If you mean dime the amp and wail away, maybe but I kinda doubt it, unless you do it every day for a while.

I tend to agree with this, to be honest.
I just didn't want to suggest it because I prefer to err on the side of caution when making suggestions for other people's gear.

But in my experience, these speakers in a 2x12 can handle a 50w head just fine. I've used a 100w plexi with a 4x12 with GBs for years, no issues.
But I've also heard of other people blowing them up, so it's certainly not an impossibility. YYMV I guess.

 

[Trem man]

Definitely don't blow your Greenbacks. If the new Creambacks sound as good as the old 65's I used to have then I'm putting them in my 1936 cab. The old 65's sounded much better to me than V30's.

 

[jeffp]

As mentioned, an attenuator, or speakers with a higher power rating are needed. If you're in love with the Greenback sound, maybe replace the 25w Greenback's with something like a Scumback M65.

I vote the 12G-65’s

 

[jeffp]

I tend to agree with this, to be honest.
I just didn't want to suggest it because I prefer to err on the side of caution when making suggestions for other people's gear.

But in my experience, these speakers in a 2x12 can handle a 50w head just fine. I've used a 100w plexi with a 4x12 with GBs for years, no issues.
But I've also heard of other people blowing them up, so it's certainly not an impossibility. YYMV I guess.

I have a 4x12 with 20W Heritage 12M speakers. That’s an 80watt cab.I’m cautiously using this with a 2203. I consider it temporary, but until i make changes it will be good enough.

 

[DreamerDeceiver]

Used to crank my 1987x and my 2203 through a homemade 2X12 with V30's in it, separately of course. It held up for years (shown here with my 2204)

View attachment 130847

Sweet !
Punchy I'll bet .