Blackstar HT Stage 100 MKI Valve Head

The Blackstar HT Stage 100 MKI is a 100-watt all-valve amplifier head with three channels and six switchable voicings. Running four EL34 power valves, it covers clean, classic crunch and high-gain sounds without relying on external gain pedals.

The Clean channel offers Boutique/Class A and Modern/Class AB voice options, with dedicated volume, bass and treble controls. Overdrive 1 moves between classic and modern crunch voices, while Overdrive 2 offers a midrange-boosted, more saturated lead voice. OD1 and OD2 share a four-band EQ section comprising bass, middle, treble and Blackstar’s patented ISF (Infinite Shape Feature) control, which sweeps between American-style and British-style amplifier character.

Dual master volumes allow separate rhythm and lead level settings. The master section also includes presence, resonance and digital reverb, with a Dark/Bright reverb switch located on the rear panel.

Specifications

• Power output: 100 watts
• Power valves: 4 × EL34
• Preamp valves: 2 × 12AX7 (ECC83), 1 × 12AU7 (ECC82)
• Channels: Clean, Overdrive 1 and Overdrive 2
• Voicings: Two switchable modes per channel, for six modes total
• Dimensions: 699 × 267 × 254 mm (27.5 × 10.5 × 10")
• Weight: Approximately 21.3 kg (47 lb)

Connectivity

• Five speaker outputs:
• 1 × 16 ohm
• 2 × 8 ohm
• 2 × 4 ohm
• 6.35 mm (1/4") emulated output with switchable 1 × 12 or 4 × 12 speaker emulation, suitable for direct recording or live mixing
• Series effects loop with switchable +4 dB / -10 dB operating level

Video: https://youtu.be/EVaFf2B5f6c

Product Specs

• Item Number: 42687
• Make: Blackstar
• Model: HT Stage 100 MK1
• Condition: Good
• Finish: Black
• Categories: amps ⇒ guitar-heads
• Made In: South Korea
• MPN: 42687