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JTM 30/60 Features
Here's a Marshall model JTM 312 30 watt 12" combo amp with a model JTM C12
single 12" extension cabinet and Fender® Stratocaster® guitar. Now that's a nice setup!
| JTM Valve Combos Features | JTM 30 | JTM 60 |
| Models and Speaker Configurations | JTM 312 (1 x12) | JTM 612 (1 x12) |
| | JTM 310 (2 x 10) | JTM 610 (3 x 10) |
| | | JTM 615 (1 x 15) |
| Twin Channel | Yes | Yes |
| Reverb | Yes | |
| Reverb/Normal and Boost Channel | | Yes |
| EQ for Normal and Boost Channel | Common | Separate |
| Emulated D.I. Output | Yes | Yes |
| D.I. Pre or Post Option | | Yes |
| Parallel Effects Loop | | Yes |
| Series Effects Loop | Yes | Yes |
| Effects Mix Control | | Yes |
| Speaker Outputs | Yes | Yes |
| Dimensions (mm) | 1x12: 557 x 258 x 447 | 1x12: 557 x 258 x 447 |
| | 2x10: 557 x 255 x 385 | 3x10: 557 x 265 x 617 |
| | | 1x15: 557 x 265 x 617 |
| Foot Pedal | P801 | P801 |
| Pedal Supplied with unit | No | No |
| Pre-amp Valves (Tubes) | 2 x ECC83 (12AX7A) | 4 x ECC83 (12AX7A) |
| Power Amp Valves | 1 x ECC83, 2 x EL34 | 1 x ECC83, 2 x EL34 |
Note: The New '96 Products Marshall flyer shows that another model now graces the JTM 60 product line: the JTM 622. This is a 2x12 combo. The JTM C212 2x12 extension cabinet is a perfect compliment to the JTM 622.
Note 2: The JTMs are now shipping, at least in the U.S., with 5881 output tubes. The 5881 has a sound that many guitarists prefer ... it doesn't distort as soon as the EL34. It may be an appropriate replacement in a combo amp. But if you want that classic, Marshall smoky growl, you may want your dealer to re-tube your amp to EL34's. (Don't forget to have your amp re-biased if you go for an output tube swap!)
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