I bought this amp second hand off a friend for £150 (Pounds Sterling). This amp is now discontinued but I figured its worth reviewing as on the second hand market these amps is pretty popular. I use it with a Epiphone SG400 with dual humbuckers.
What can I say? 3xEEC83 valves in the Preamp for that lovely vintage creamy Marshall overdrive. I like the fact its pretty versatile in terms of the sound but for me it suits my style perfectly, which is vintage rock/blues. I like the set up where the boost channel has a gain control and then its own volume control so you can crank up the preamps volume for seriously loose vintage sounding overdrive. I also like the fact the clean channel has its own gain control so you can go from a lovely clean bite to a vaguely aggressive marshall style overdrive. Coupled with a 1x12 speaker, reverb tank for nice sounding natural reverb this is a killer amp and a good introduction to more serious sounding guitar tones! I personally typically set my gain to 1/4 way and preamp volume to 3/4 of the way round and this gives a really cool vintage crunch. It also has a emulated D.I output which is great for recording.
I know I should be more helpful and say what I dont like about this amp, but there isnt really anything. Its only 30 watts so obviously someone who needed more power for large gigs would want something with a bit more welly but this suits my purposes fine.
Typical Marshall build quality. I know for a fact this amp had had its fair share of kickings and its held up fine. Mega sturdy casing and reliable electronics. Its a little on the tatty side but thats just general wear and tear thats pretty unavoidable if your gigging something.
This amp is best suited to vintage sounds I reckon because the gain it provides doesnt really go as far as metal. In saying that you can get a pretty cool modern sound by scooping the mids and using all the gain on the boost channel you can. Its fairly basic with just two channels and reverb.
This amp as I said is fairly versatile and I've used solid state amps that are meant to emulated the valve sound and I was convinced, until I heard the JTM30. A brill little combo with bags of bite and that all important Marshall valve sound. If your after proper tube tone then this amp coupled to a Les Paul of SG will really give you what your after and a second hand one shouldnt cost you nearly as much as the latest Marshall valve combos.
I picked this up for a tidy £275 when looking for an amp that was loud enough to gig with and is valve driven. I got it second hand and it looked pretty old but that does not mean it was it bad condition - it felt very solid and durable. Its a all valve amp with reverb and a nice bluesy feel to it. Mine came with with two 10inch celestions that sound very nice.
The warm valve sound, ease and simplicity of controls. The reverb effect is very good (I have a POD2.0 and I reckon the reverb on the amp sounds much nicer than the POD reverb).
It can go very loud for only 30 watts and sounds really nice when its's been driven for about 20 minutes.
Clean sound is amazing and I cannot fault it.
Overdrive is also really good but does not provide much distortion, this doesn't bother me but nu-metallers may want something with a bit more drive.
It also offers many features like footswitch, extension cab socket, effects loop and an emulated output so you can plug it straight into a desk when recording instead of having to mike up the amp.
Overall this is a brilliant amp - get it.
in short - nothing for the price.
Very solid feel, mines pretty old and I've knocked it about a bit and the amp is fine with not a resulting blemish anywhere. Valves are tucked nicely behind a grille where they burn away nicely. basket weave front makes it look great and overall - a very high quality unit.
A brilliant amp for the price from one of the finest brands. If you see it, get it.
PART EXCHANGED MY JTM30 FOR A LANEY AOR50 & CAB(TOO HEAVY ROCK FOR BLUES!!) AT A GOOD SHOP IN FOLKESTONE, ENGLAND IN MARCH 2002.
NOT A VERY HEAVY AMP, WEIGHT-WISE. SUPERB SOUND ON CLEAN CHANNEL. IT OVERDRIVES BEAUTIFULLY WHEN CRANKED UP. OVERDRIVE CHANNEL IS FABULOUS. NOT A BAD SOUND TO BE HAD!! IT IS VERY LOUD FOR A 30 WATTER. I ALSO HAVE A PEAVEY CLASSIC 30 - NO CONTEST!! THE MARSHALL SOUNDS LIKE A SMALL STACK WHEN PUSHED. HAVE USED IT FOR A FEW OUTDOOR GIGS AND IT COPES EASILY. MY BIG RIG IS A LANEY WORLD SERIES 100 WATT BEAST. 30 YEARS OLD AND STILL STEAMIN'!!
ANYWAY THE JTM SOUNDS GOOD AT ALL SETTINGS AND VOLUMES A BARGAIN AT £350(INC. P/EX ON LANEY). IF YOU SEE ONE....GRAB IT!!!!!
DISLIKES..MMMM..DIFFICULT..MAYBE THE SINGLE EQ FOR BOTH CHANNELS. BUT THAT'S WHAT YOU WILL GET WITH MOST VALVE COMBOS UNDER £400
NOT TOO HEAVY BUT VERY SOLID. USUAL MARSHALL QUALITY. COVERED IN A BROWNISH/DARK GREY VINYL...VERY TASTY. CONTROLS EASY AND VERSATILE.
IF YOU BUY A SMALL VALVE COMBO, MAKE SURE IT'S THIS ONE!!
The 312 features a combo cabinet with one 12 inch speaker. This is the most standard version of this guitar amp. This amp has a bit more of a buzzy sound in the distortion compared to the 60 watt models.
This amp is the same amp as the 60 watt amp but just in a 30 watt version. You get the same great tone and features as you would with just a slight variant in the tone since the wattage is cut in half. You powers tubes will be softer and springier since their is less power.
Back in the day when Marshall made amps that sounded good and took the time needed to build high quality amps not just fast quantity amps they build this little combo. This amp is a big surprise to me because I generally don't like the combos that Marshall has come out with. The sound is very sterile and boxy to my eras. However this amp sounds just as good if not better than many boutique amps out there today.
It boggles the mind why they decide to stop making amps like this and think that the MG series is much more worth the time and effect. Well the real reason is they make more money off the trash amps that fit to more people's budgets rather than sticking with quality amps and keeping their integrity.
JTM 60 312 Valve Combos Features
ReverbEQ for Normal and Boost Channel Common
Emulated D.I. Output
Series Effects Loop
Pre-amp Valves (Tubes) 2 x ECC83 (12AX7A)
Power Amp Valves 1 x ECC83, 2 x EL34
I love the way this amp sounds with a nice Gibson Les Paul or Gibson SG guitars. It fits the rock tone and compliments my playing very well. This amp sounds amazing with a solid classic rock tone that can get anything from the 60's and 70's rock tones.
The tone is warm and rich full of great harmonics. I like the tone especially playing songs from AC/DC or Led Zeppelin. This amp nails those tones without any problem what so ever.
Another interesting thing about this amp is the effects loop on the front of the amp much like some amps from Peavey. To me this it too much going to the front especially if you are micing it up.
Marshall has seriously got down he tubes in recent years...no pun intended. Their amps has a bland cold tone that sound harsh and flat whether its in your bedroom playing or even on stage. I have played most Marshall amps that are currently in production and only a few amps sound anything like the old ones.
These are not new amps so you'd have to find them on the used market. I have no idea what the going rate for one of these amps are used, but I highly recommend picking one up.