From NAMM: Marshall MG Series
January 15, 2009
The amps have specially voiced digital effects, intuitive footswitching technology and four adjustable/storable channels. The MG10 and the MG15 boast two channels of classic Marshall tone with an EQ control called Contour, which adjusts the mid-rand (or body) of either channel.
The MG15FX and MG30FX have digitial effects like Chorus, Phaser, Flanger and Delay (all on the front panel). The Delay is controlled with a Tap button that is easily set with two taps. The amps also have a standalone Reverb and a newly designed footcontroller that switches between Clean, Crunch, OD1 and OD2. Any combination of analog and digital settings can be stored each channel's memory.
The 50 and 100 Watt combo versions of the MG, along with a 100 Watt head, pickup where the other models leave off, offering Marshall tones with brute force. They have a separate Digital Delay, allowing for two other effects to be combined with it--Reverb and Modulation (Chorus/Phaser/Flanger). The 50 and 100 Watt versions also have a switchable external FX loop that can be engaged in series and at instrument level.
The new MG series 4x12 cabs are loaded with Celestion speakers.