Hiwatt SUPER-HI 33 - 33W 2-Ch High Gain Amplifier

Hiwatt Super-Hi 33 – Maximum Gain. Controlled Chaos.

The Hiwatt Super-Hi 33 is a compact high-gain monster that delivers all the fury of the Super-Hi circuit at more controllable volumes. Built from the Custom Shop Super-Hi design, it combines Hiwatt’s famously clean and responsive power section with a cascaded gain preamp capable of everything from aggressive crunch to full-on sonic meltdown. This is modern high gain with discipline, punch, and clarity intact.

Featuring two high-gain channels with independent master volumes and a channel-independent Super-Hi boost, the Super-Hi 33 gives you four distinct gain and volume stages ready for instant footswitch control. Push the preamp into saturation while keeping articulation razor-sharp, then kick in the boost when you need your tone to cross the line into chaos.

Powered by 6V6 output valves, the Super-Hi 33 delivers tight, focused bass response and strong headroom at lower volumes, making it ideal for studios, rehearsal spaces, and smaller stages. A post-preamp FX loop ensures delays, reverbs, and modulation effects stay clean and defined, even when the preamp is absolutely filthy.

Key Features

• Two high-gain channels with independent master volumes for precise control

• Footswitchable Super-Hi boost for extreme saturation and lead tones

• 6V6 output valves for tight low end and controlled punch at lower volumes

• Post-preamp FX loop keeps modulation and time-based effects clean

• Depth (Resonance) control for dialing in low-end response

• Full EQ section: Bass, Middle, Treble, Presence

• Footswitchable channel switching for live performance flexibility

• Based on the Custom Shop Super-Hi circuit

Who Is It For?

The Hiwatt Super-Hi 33 is built for players who want brutal gain without stadium-level volume. Perfect for studio guitarists, modern rock and metal players, and anyone who needs crushing saturation with tight bass and clarity at manageable levels. If you want the Super-Hi sound in a more controlled, more flexible format, the Super-Hi 33 is your weapon.

Tech Specs

Core Specifications

• Wattage: 33W
• Channels: Gain One, Gain Two
• Input: 1/4" Mono
• Preamp Valves: 4 x ECC83 (12AX7)
• Output Valves: 2 x 6V6

Tone & Controls

• Gain One & Gain Two controls
• Channel-independent Super-Hi Boost
• Bass, Middle, Treble, Presence EQ
• Depth (Resonance) control
• Master One & Master Two volumes

Connectivity

• 2 x 1/4" Speaker Outputs
• 4,8,and 16 Ohm Selector
• 1 x 1/4" FX Loop Send
• Footswitchable channel switching and Super-Hi boost

Construction & Components

• Hiwatt clean and responsive power section
• Cascaded high-gain preamp
• Post-preamp FX loop for clean effects integration
• 6V6 output valves for tight low end and controlled headroom at lower volumes