Blackstar HT-5R MkII Settings Guide
5-watt all-valve combo with a full feature set: two channels, ISF EQ, reverb, speaker-emulated output. The most complete small tube amp available for home and studio use.
Used by: Gary Moore, Slash, Angus Young
The best Blackstar HT-5R MkII settings start with: Gain at 5/10, Volume at 4/10, Bass at 5/10, Treble at 5/10, ISF at 5/10, Reverb at 3/10. Adjust from there based on your amp, guitar, and room volume. For Blues: Gain 4/10, Volume 5/10, Bass 5/10, Treble 5/10, ISF 4/10, Reverb 3/10.
⚡ Start Here — Recommended Settings
| Control | Starting Position | Range |
|---|---|---|
| Gain | 5/10 | Clean → High-Gain |
| Volume | 4/10 | Silent → Loud |
| Bass | 5/10 | Thin → Heavy |
| Treble | 5/10 | Dark → Bright |
| ISF | 5/10 | American (V) → British (I) |
| Reverb | 3/10 | Dry → Wet |
These are universal starting points. Adjust based on your amp, guitar, and room. Scroll down for genre-specific settings and artist-documented positions.
What Each Control Does
Recommended Starting Settings
Safe starting positions for any style. Adjust from here based on your amp and room.
All values on a 0–10 scale. These are starting points — fine-tune by ear.
Settings by Genre
OD channel at moderate Gain — ISF at 4 (slightly American) keeps the voicing open and Fender-adjacent. Volume at 5 pushes the 5W power stage gently. A Tube Screamer in front at Drive 0, Level high pushes the amp rather than adding pedal grit.
ISF at 6 shifts the character toward the British voicing — the HT-5R at moderate Gain with ISF above 5 produces a convincing Marshall-adjacent crunch. Treble at 6 adds presence; keep Reverb minimal for rock rhythm clarity.
High Gain with ISF fully British produces significant saturation for a 5W amp. The power amp tubes will distort at this gain into a reasonable-volume setting — add a noise gate. This is best for recording direct via the speaker-emulated output rather than live use.
Use the Clean channel (not OD channel at minimum Gain). ISF at 5 for a balanced character. The HT-5R clean channel is adequate rather than exceptional — for pristine clean, consider a dedicated Fender amp.
Moderate Gain with balanced ISF and moderate Reverb. The HT-5R at medium settings produces a textured, slightly crunchy indie sound that responds to picking dynamics. Volume at 5 gets the output tubes contributing without being too loud.
Artist Settings
Documented settings used by professional guitarists on this unit.
Moore's lead tone — high Gain, British ISF character, moderate Treble. This setting into the speaker-emulated output produces a usable recording tone for his blues-rock style. Add a TS9 in front at Drive 4 for his extra sustain character.
ISF fully British, high Gain — the HT-5R approximates Marshall character for home practice. A Les Paul at full Volume into these settings produces the mid-forward crunch that characterises Slash's rhythm tone. The 5W amp is loud enough for home use at Volume 4.
ISF at maximum British, Volume pushed to 5 — the HT-5R with ISF fully clockwise produces the British mid-forward character that AC/DC's SG-into-Marshall approach requires. No reverb. Bass at 6 for body on a mahogany SG. The amp at Volume 5 will push the output tubes into natural compression.
Tips & Common Mistakes
- The ISF control is the most important tone adjustment on this amp — set it before adjusting Bass and Treble, as it fundamentally changes the EQ character.
- The speaker-emulated output bypasses the speaker and outputs a cab-simulated line signal — connect directly to an audio interface for silent home recording.
- The 1-watt mode (accessible via a rear-panel switch) reduces output significantly for very quiet bedroom use. The tone is thinner at 1W, but it allows valve saturation at lower volumes.
- At Gain above 7, the HT-5R produces significant noise floor — use a Boss NS-2 or ISP Decimator in the effects loop if recording.
- The effects loop is pre-phase inverter, which is an unusual routing — it means time-based effects (delay, reverb) in the loop respond to the preamp gain level. For cleaner delay trails, run delay outside the loop.
- The EQ becomes more sensitive at lower volumes — at bedroom Volume (2–3), small EQ changes are more dramatic than at gigging volume.
FAQ
Blackstar HT-5R MkII — Common Questions
Best starting settings for Blackstar HT-5R MkII: Gain at 5/10, Volume at 4/10, Bass at 5/10, Treble at 5/10, ISF at 5/10, Reverb at 3/10. Adjust from there based on your guitar, room, and playing style.
For Blues: Gain 4/10, Volume 5/10, Bass 5/10, Treble 5/10, ISF 4/10, Reverb 3/10. OD channel at moderate Gain — ISF at 4 (slightly American) keeps the voicing open and Fender-adjacent. Volume at 5 pushes the 5W power stage gently. A Tube Screamer in front at Drive 0, Level high pushes the amp rather than adding pedal grit.
For Classic Rock: Gain 6/10, Volume 4/10, Bass 5/10, Treble 6/10, ISF 6/10, Reverb 2/10. ISF at 6 shifts the character toward the British voicing — the HT-5R at moderate Gain with ISF above 5 produces a convincing Marshall-adjacent crunch. Treble at 6 adds presence; keep Reverb minimal for rock rhythm clarity.
Gain: Preamp drive on the OD channel. Clean channel has a separate Volume control only. (Clean to High-Gain). Volume: Master output. The HT-5R sounds better at medium Volume (4–6) than maximum. (Silent to Loud). Bass: Low-frequency body. The 5W amp responds to Bass changes more dramatically at low Volume. (Thin to Heavy). Treble: High-frequency presence. Blackstar voicing is naturally bright — 5–6 suits most applications. (Dark to Bright). ISF: Infinite Shape Feature — moves the EQ emphasis between Fender-voiced (American, anti-clockwise) and Marshall-voiced (British, clockwise). The most powerful single tone control on the amp. (American (V) to British (I)). Reverb: Digital reverb. 3–4 adds space; above 6 becomes washy. (Dry to Wet)
The ISF control is the most important tone adjustment on this amp — set it before adjusting Bass and Treble, as it fundamentally changes the EQ character. The speaker-emulated output bypasses the speaker and outputs a cab-simulated line signal — connect directly to an audio interface for silent home recording. The 1-watt mode (accessible via a rear-panel switch) reduces output significantly for very quiet bedroom use. The tone is thinner at 1W, but it allows valve saturation at lower volumes. At Gain above 7, the HT-5R produces significant noise floor — use a Boss NS-2 or ISP Decimator in the effects loop if recording. The effects loop is pre-phase inverter, which is an unusual routing — it means time-based effects (delay, reverb) in the loop respond to the preamp gain level. For cleaner delay trails, run delay outside the loop. The EQ becomes more sensitive at lower volumes — at bedroom Volume (2–3), small EQ changes are more dramatic than at gigging volume.
Gary Moore settings: Gain 7/10, Volume 5/10, Bass 5/10, Treble 6/10, ISF 7/10, Reverb 2/10. Moore's lead tone — high Gain, British ISF character, moderate Treble. This setting into the speaker-emulated output produces a usable recording tone for his blues-rock style. Add a TS9 in front at Drive 4 for his extra sustain character.
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