Features/Specifications: The Radial Trimode offers an amazing combination of simplicity and functionality with innovative, well thought-out features accessible through intuitive controls and i/o options. The two footswitches provide for easy toggling between modes and large LED indicators allow instant at-a-glance monitoring of the Trimode's status. Separate drive, level and mid-boost control for each distortion channel gives the user the power to easily set up exactly the distortion sounds required, then toggle between them with no tap-dancing! The overall TOP END and DRIVE GAIN switches together with variable HIGH and LOW EQ controls and the 'anti-presence' FILTER control will guide you to the perfect tone for your amp/guitar combination. Effects can be connected via the INSERT ¼" send-receive TRS jack and are switched in when you press the 'Toggle' switch to select CH-2. Further Specs: Circuit type: Hybrid tube / proprietary circuit Tube type: Standard 12AX7 vacuum tube Input impedance: 1meg Ohm at input jack Output impendence: 10K Ohm Drive gain 3-way switch: Used in conjunction with the drive gain control. Drive switch selects the gain range of the overdrive circuit. Low: Normal mode (+0dB Nominal) Med: Medium distortion (+9dB) High: High distortion (+20dB) Intermediate drive: (Intergain™) Variable fine-tune gain for CHANNEL-1 (rhythm) - counter-clockwise for more gain Drive-1 & 2 controls: Used in conjunction with the drive gain switch, drive is used to adjust the overall amount of gain to the overdrive circuit. Mid Boost 1 & 2 - two 3 pos switches: Used to fatten up the sound for more cut and sustain during solos. Also, will fatten up the sound of single coil pickups. 1. High: CHANNEL-1 (rhythm) +8dB @ 390Hz - CHANNEL-2 (lead) +12dB @ 390Hz 2. Medium: CHANNEL-1 (rhythm) +4dB @ 390Hz - CHANNEL-2 (lead) +7dB @ 390Hz 3. Bypass: No boost FILTER control: Balances the ratio of high frequencies between amplifier and Classic distortion to compensate for overly bright amplifiers. TOP END 3-way switch: Switch sets the overall tonal character of the Classic to best match the amp and settings. Brighter amps are normally compensated with darker settings. 1. Bright: Boosts +6dB @ 10kHz 2. Flat: No boost 3. Dark: Cuts -6dB @ 1.8kHz High & Low EQ controls: Unity gain to +15dB - Low:+/- 14.5 db @ 100Hz - High: +/- 10 db @ 4.3kHz Footswitches: True bypass with green on/off status LED - Toggle 12 with red & yellow status LED's LED indicators: Large 3mm OD ultra-bright LED's Switching: Opto-coupler assisted, 5msec Rise time Construction: 14 gauge steel, baked enamel finish Size: 8.12" x 4.25" x 2.12" (207mm x 108mm x 54mm) Weight: 2.55lb (1.16kg)