Blackstar HT-112oc MKIII
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Information
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Manufacturer Information
Blackstar
https://www.blackstaramps.com
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Hol Music Dral SLU
Email: info@holmusic.es
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Historical Context and Positioning in the Range
The BLACKSTAR HT 112OC MKIII continues the Blackstar ethos: offering reliable and musical solutions, oriented towards "plug and play," while allowing the guitarist to shape their tonal response. This MKIII version retains the popular 1x12 format for its balance between size and performance and positions itself as a compact and versatile extension speaker, ideal for pairing with an HT series head or any other amp requiring a 16-ohm cabinet.
Who This Amp Is For
This cabinet is designed for guitarists from beginner to advanced levels who want a simple, effective, and easy-to-transport cabinet. In the studio, it works very well for mic'd recordings thanks to the 1x12 format, which is often easier to place in a mix than a 4x12. In rehearsal and on small to medium stages, it provides a real presence, especially when paired with a tube head. Style-wise, it easily covers rock, blues, pop, and hard rock, with a response versatile enough for clean, crunch, and saturated tones.
Features and Innovations
The highlight of the HT 112OC MKIII is its removable rear panel, allowing you to switch between an open-back and closed-back configuration. In open-back mode, the sound spreads more widely in the room, with a more "airy" feel and a pleasant interaction with the guitar, often appreciated for cleans and crunch tones. In closed-back mode, the response becomes more focused, with tighter bass and more direct projection, very useful for tight rhythms and modern distortion. The 12-inch Blackstar Custom speaker is designed to provide a coherent sonic foundation with Blackstar amps while remaining neutral enough to work well with other heads.
The Sound
The BLACKSTAR HT 112OC MKIII delivers the typical signature of a 1x12 cabinet: precise attack, clear mids, and present bass without overpowering. In open-back configuration, you get a more "lively" sound, with a sense of space and dispersion that easily fills the room-ideal when you want to hear yourself without cranking the volume. In closed-back mode, the sound gains in impact and low-end sustain, helping to keep palm mutes tight and distortion well-controlled. With a tube head, the cabinet highlights the amp's natural dynamics and compression while maintaining good definition for both chords and leads.
Technical specifications
| Category | Guitar cabinet | Color | Black |
| Cabinet impedance (Ω) | 16 Ω | Finishing | Silver |
| Speaker diameter | 12" | Power output | 50 W |
| Number of speakers | 1 | ||
| Configuration | 1x12 | Power | 50 watts |
| Rear panel | open or closed back (easily removable panel) | Impedance | 16 ohms |
| Speaker | 1x 12-inch Blackstar Custom | ||
Questions frequently asked
Which amp head can be connected to the Blackstar HT-112OC MKIII?
The speaker has an impedance of 16 ohms. It should be paired with an amp head that has a compatible 16-ohm speaker output.
Can the rear panel of the cabinet be removed?
A removable rear panel allows for an open-back or closed-back configuration.
What sound does the HT-112OC MKIII produce in open-back and closed-back modes?
In open-back, the sound disperses more widely and is more airy, especially on clean and crunch tones. In closed-back, the bass is tighter and the projection more direct. This setup helps to keep palm mutes clear with distortion.
What power rating does this Blackstar 1x12 cabinet support?
The stated power handling is 50 W for its single 12-inch Blackstar Custom speaker.
Is this 1x12 cabinet suitable for studio and rehearsal use?
Its 1x12 format facilitates mic’d recording in the studio. It is also suitable for rehearsals and small to medium venues, with a response tailored for rock, blues, pop, and hard rock.



