Detail 01
600W power output
The amplifier head is rated for 600 watts of output.
Product detailSKU #1500000381024
AshdownInterstellar-600 Guy Pratt Signature 600W Amplifier Head
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Independent shopping perspective
The Korena take
Ashdown’s Interstellar-600 is Guy Pratt’s 600W signature bass amplifier head, handmade in the brand’s UK custom shop and housed in a custom enclosure. Its 9-band EQ and valve-tone control give you hands-on shaping at the head, while the compression and sub-harmonics can be footswitched at fixed values specified for this model. Two Jack/Speakon speaker outputs support cabinet connection, and the head includes high- and low-instrument inputs, a line input, DI, tuner output, and effects loop connections.
Strong match
Who this is for
- Bass rigs needing 600W output, detailed 9-band EQ control, and two Jack/Speakon speaker outputs.
- Players who want fixed-value footswitch control of the head’s compression and sub-harmonics.
- A setup using high- or low-instrument inputs, line input, DI, tuner output, or an effects loop.
Consider the trade-offs
When to look elsewhere
- Anyone expecting a footswitch to be supplied with the amplifier head.
- Speaker setups below the stated 4-ohm minimum per side.
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
9-band EQ
Nine EQ bands are available for tonal adjustment.
Detail 03
1 x 12AX7 preamp tube
A 12AX7 is specified in the preamp section.
Detail 04
2 x Jack/Speakon speaker outputs
The head provides two speaker connections that accept Jack or Speakon connectors.
Detail 05
4-ohm minimum per side
Each side requires at least a 4-ohm speaker load.
Detail 06
115–230V power requirement
The listed operating power range is 115–230V.
Final check
Know before you order
- 01The compression and sub-harmonics footswitch function requires a footswitch supplied separately.
- 02Confirm each speaker side meets the 4-ohm minimum requirement.
- 03The head provides two Jack/Speakon speaker outputs.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How much power does the Interstellar-600 provide?
It is rated for 600W output.
02Is a footswitch included?
No. Footswitch control is supported for compression and sub-harmonics, but the footswitch is supplied separately.
03What speaker outputs are provided?
It has two Jack/Speakon speaker outputs, with a 4-ohm minimum per side.
04Does it have a valve preamp tube?
Yes. The preamp section specifies one 12AX7 tube.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
4 detailsSound
- Effects Send Impedance
- 22 kohm, Level 0dBu nominal
- Effects Return Impedance
- 22 kohms, Input Level 0dBu Nominal
- Frequency Response
- –3dB @ 17Hz und 30kHz
- Impedance Minimum
- 4 ohms per side
8 detailsConnections & power
- Tuner Output Impedance
- 22 kohms, Level 0dBu nominal
- Low Instrument Input Impedance
- 10 kohms, input range 300mV–40V p-p
- DI Output
- 600 ohm balanced, Level 0dBu nominal
- Power Requirement
- 115-230V
- Speaker Outputs
- 2 x Jack/Speakon outputs
- Power Output
- 600W
- High Instrument Input Impedance
- 3.9 mohms, input range 150mV
- Line Input Impedance
- 22 kohms, input level 0dBu nominal
1 detailsOther
- Pre Amp Tubes
- 1 x 12AX7
