Blackstar Unity 30W Bass Amp 1x8 Speaker

The Unity Bass series is Blackstar's answer to a question most bass players have asked at least once: why does a practical, affordable combo have to sound like it's apologizing for existing?

Three switchable preamp voices — Classic, Modern, and Overdrive — cover vintage valve-inspired growl, high-headroom, punchy dynamics, and smooth, open drive, respectively, all shaped by a 3-band EQ with a semi-parametric, sweepable mid.

The drive section goes further than most combos at this price: three distinct overdrive characters — Overdrive, Distortion, and Fuzz — each with a blend control so you can dial in exactly how much grit lives underneath your clean signal.  

amp features at practice amp prices, without the practice amp sound.

U30 is the entry point to the Unity Bass series, and it's a lot more amp than the footprint suggests.

your bassist is currently running through an old guitar combo that sounds like a cardboard box with opinions, this is the upgrade that ends that conversation.

This is a BRAND NEW amplifier! If you have any questions, feel free to drop by, shoot us a message, or give us a call!

Spec Block

Amplifier

• Type: Solid-State Combo
• Output: 30 Watts RMS
• Speaker: 1x 8" Custom Designed Speaker

Voices & EQ

• Preamp Voices: Classic (valve-inspired growl), Modern (high-headroom dynamics), Overdrive (smooth, open drive)
• EQ: 3-Band with semi-parametric sweepable Mid (200Hz–2kHz)
• Drive Types: Overdrive, Distortion, Fuzz — with blend control

Effects

• Compressor: Yes — panel switch
• Chorus: Yes — panel switch; footswitch-assignable
• Octaver: Yes

Controls

• Controls: Input Gain, Bass, Mid, Mid Frequency, High, Master Volume
• Pad Switch: -10dB (active pickups)

Connectivity

• Inputs: 1/4" instrument, 3.5mm MP3/Line In
• Outputs: XLR balanced Line Out (w/ ground lift), 1/4" Line Out/Headphone (independent level)
• Cabinet Link: XLR — compatible with Unity U250ACT active cabinet
• Footswitch Jack: Yes — requires FS-8 or equivalent latching 2-button footswitch (sold separately)