The Line6 presets (128 of them) come set like the original amp they are modeling, a bassman for example.  But...unlike the original, they let you add effects, tone, mid, you name it, from the front panel.

As you can see here, the speaker leads go into the back panel  of the amp chassis and have jack inputs so you can remove them and put in a set of headphones and practice in stealth mode if your neighbor has been getting nasty bout the sounds coming out of your house lately.  The power switch is in the top left there..the red button.  That needs to be on the front I think, as well as a headphone jack there too.

The floor board allows you to go up and down the 32 banks and then across the 4 channels of each bank.  The right pedal is volume and the left is the effects pedal.

This is the Line6 Ax2,  The Sys 212 and Ax2 are both modeling amplifiers.  This means they  have NO tubes.  256 total presets, 128 factory preset amp-and-effects setups, 128 programable by me. It has 100 watts of stereo power, custom  "Guitar Amplification" 12" speakers, a direct out with cabinet simulator for recording or headphone monitoring, a chromatic digital tuner, and a digitally independent Aux channel, free from guitar tone and effects processing for clean amplification of acoustic guitar, CD, drum machine, tape, or even vocals (with their own separate reverb send) to accompany your guitar sound.  Full-time stereo effects, total MIDI capability, & more.

There is an online message board for users of the line6 products at: Message Boards http://64.224.126.160/Boards/cgi-bin/ultimatebb.cgi

Other good links are: http://www.instituteofnoise.com/forum/forum.asp?FORUM_ID=4

AX2 212 FEATURES & SPECIFICATIONS

Guitar Input Effects:  Noise Gate; Hum Canceller; Compressor; Wah; Auto-Wah; Rando-Wah; Sample/Hold Wah; Volume; Distortion Pedal Type: choose from three distortion box models including Octave Box

Preamp: Bright Switch; 3-band pre EQ; Drive; Amp Model Select (choose from 26 Amp Models including new AX2 Signature Sounds: AX2 Clean, AX2 Crunch, AX2 Drive, and AX2 Layer, plus an expanded set of Amp Models that emulate the sounds of classic amplifiers); 5-band Graphic EQ; Bass/Mid/Treble Tone Controls; Presence

Effects Processor: Auto-Volume; Mono, Stereo Chorus; Mono, Stereo Flange; Phasor; Freq Mod; Stereo Rotary Speaker; Ring Modulator; Mono, Vibrato;Mono, Stereo Tremolo; Mono, Stereo, Ping-Pong and Multi-Tap Delay; Dynamic Delay; Tap Tempo Delay; Tape Echo; Room, Hall, and Physically Modeled Spring Reverb; Stereo Spread; Cabinet Emulator (choose from 1 x 12", 2 x10", 2 x 12", 4 x 10", and 4 x 12" emulations); Built-In Digital Chromatic Guitar Tuner

Aux Input:

Aux Level; Bass EQ; Treble EQ; Reverb Amount

Converters:  Dual 20-bit linear 64 times oversampling A/D/Dual 20-bit linear 8 times oversampling D/A

DSP: Dual DSP architecture with True 24-Bit Stereo Processing @ 48 Million Instructions Per Second (MIPS)

Connections: Guitar input, Aux input, Wah pedal input, Volume pedal input, Input for optional Floor Board or FB4 remote pedal

Outputs: Stereo line out/ headphones, Left and Right speaker outputs, MIDI in/out

Memory: 128 Presets, 128 User programs in battery-backed RAM. The AX2 includes an all-new set of 128 Factory Presets

Power amplifiers: 100 Watts Stereo, 50 watts RMS per channel

Speakers: Dual custom designed 12" Eminence speakers

Dimensions: 21 1/2" H x 28 1/2" W x 11" D (546mm H x 724mm W x 279mm D)

Weight : 56 lbs. (25.4 Kg)