Marshall DSL20HR

Marshall DSL20HR – Guitar Amplifier Head

Overview

Marshall DSL20HR is a 20-watt all-tube head from the iconic Dual Super Lead series, delivering classic EL34-driven Marshall tone at a more manageable volume level. With a dual-channel architecture, wide gain range, and emulated output system, it is designed for home studios, rehearsals, and small live performances, balancing vintage Marshall saturation with modern flexibility.

Features

• All-tube amplifier head design
• 20-watt power output (with power scaling for lower output levels)
• 2 channels:
• Classic Gain
• Ultra Gain
• Dual voicing per channel:
• Green / Red modes
• 3-band EQ (Bass / Middle / Treble)
• Presence and Resonance controls for power amp shaping
• Built-in digital reverb
• Tone Shift function for midrange shaping
• Series FX loop
• Emulated line output for recording
• Footswitchable channel switching
• External speaker cabinet compatibility

Technical Specifications

• Power Output: 20 Watts (power scaling available)
• Amplifier Type: All-Tube
• Tubes:
• 3 x ECC83 (preamp)
• 2 x EL34 (power amp)
• Channels: 2 Channels (Classic Gain / Ultra Gain)
• Channel Modes: 4 voicings (Green / Red structure)
• EQ:
• Bass
• Middle
• Treble
• Power Amp Controls:
• Presence
• Resonance
• Features:
• Digital Reverb
• Tone Shift
• Power Scaling (20W / lower levels)
• Inputs:
• 1 x 1/4” Guitar Input
• Outputs:
• External Speaker Output (4 / 8 / 16 Ohm)
• Emulated Line Output
• Effects Loop:
• Series FX Loop
• Controls:
• Gain (per channel)
• Volume (per channel)
• Master Volume
• EQ section
• Reverb level
• Footswitch: Channel switching supported
• Form Factor: Head (requires external cabinet)
• Applications:
• Home Practice
• Studio Recording
• Rehearsal
• Small to Medium Live Performance