Detail 01
300W hybrid power
The head combines the ABM preamp with a 300W power stage.
Product detailSKU #1500000278801
AshdownABM EVO IV 300W Bass Amp Head
metalgroove metalthrash
1/4
Independent shopping perspective
The Korena take
The ABM 300 EVO IV is a 300W hybrid bass head that pairs the ABM preamp with a 300W power stage. Its signal path includes one 12AX7 preamp tube and a nine-band EQ, alongside high- and low-instrument inputs. For a larger rig layout, it provides two Jack/Speakon speaker outputs, with a minimum 4-ohm impedance rating. A balanced DI, effects send and return, line input, and tuner output give the head dedicated connection points for recording and routing.
Strong match
Who this is for
- Bass rigs needing two Jack/Speakon speaker-output connections with a minimum 4-ohm impedance rating.
- Studio or routed setups using the balanced DI, line input, effects loop, and tuner output.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
One 12AX7 preamp tube
A single 12AX7 is part of the preamp section.
Detail 03
9-band EQ
Nine EQ bands are available for tone adjustment.
Detail 04
Two Jack/Speakon speaker outputs
The rear panel offers two speaker-output connections in Jack/Speakon format.
Detail 05
Minimum 4 ohms
The specified minimum impedance rating is 4 ohms.
Detail 06
Balanced DI; effects loop; line and tuner outputs
Dedicated connections support direct output, external effects, line input, and tuning.
Final check
Know before you order
- 01Use speaker connections that meet the head’s specified minimum 4-ohm impedance rating.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How much power does the ABM 300 EVO IV provide?
It has a 300W hybrid power rating.
02Does it have a direct output?
Yes. It provides a 600-ohm balanced DI output at 0dBu nominal level.
03What speaker outputs are fitted?
There are two Jack/Speakon speaker outputs.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
5 detailsSound
- Effects Return
- Impedance 22k Ohms, Input Level 0dBu Nominal
- Effects Send
- Impedance 22k Ohm, Level 0dBu nominal
- Impedance Rating
- minimum 4 Ohms
- Frequency Response
- -3dB @ 17Hz und 30KHz
- Power
- 300W (hybrid)
6 detailsConnections & power
- High Instrument Input
- Impedance 3.9m Ohms, input range 150mV
- Line Input
- Impedance 22k Ohms, input level 0dBu nominal
- DI Output
- 600 Ohm balanced, Level 0dBu nominal
- Low Instrument Input
- Impedance 10k Ohms, input range 300mV - 40V p-p
- Speaker Outputs
- 2 x Jack/Speakon outputs
- Tuner Output
- Impedance 22k Ohms, Level 0dBu nominal
2 detailsSize & weight
- Weight
- 26.5
- Dimensions
- 18.75” x 13.25” x 5.25”
1 detailsOther
- Tube
- one 12AX7 (preamp)
