Detail 01
30W all-valve design; 2 x 12AX7 and 2 x 6L6GC
The preamp and power sections are valve-based, with increased 6L6 saturation as volume rises.
Product detailSKU #1500000372490
Orange AmplifiersMarcus King Signature MK Ultra 30W Guitar Tube Amp Head Orange
rockhard rock
1/9
Independent shopping perspective
The Korena take
Marcus King's 30-watt MK Ultra is a handwired all-valve guitar amp head built around two 12AX7 preamp valves and two cathode-biased 6L6GC power valves, with custom Heyboer transformers. The input circuitry responds to changes in guitar volume and tone settings, while pedals are designed to blend into the amp's voice. At lower volume it remains fast to respond; turn it up for more 6L6 saturation. Sing adds brightness, Deep adds overall thickness, and the cabinet outputs cover several impedance arrangements.
Strong match
Who this is for
- Pedalboard-based guitar rigs that need pedals to meld into the amp's tone
- Players shaping response from guitar volume and tone controls at lower amp settings
- Studio or stage rigs using the listed 4-, 8-, or 16-ohm speaker configurations
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
Sing and Deep controls
Sing adds brightness; Deep thickens the overall sound.
Detail 03
Speaker outputs: 1 x 4 ohm; 1 or 2 x 8 ohm; 1 or 2 x 16 ohm
Provides the listed cabinet impedance and single- or dual-speaker connection arrangements.
Detail 04
21.7 x 9.5 x 10.6 inches; 39.2 weight
These are the head's listed physical dimensions and weight.
Final check
Know before you order
- 01Match your speaker connection to one of the head's listed 4-, 8-, or 16-ohm output arrangements.
- 02Allow for the 21.7 x 9.5 x 10.6 inch enclosure and listed 39.2 weight in your rig.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How does the MK Ultra handle pedals?
Its circuitry is designed to blend pedals into the amp's tone rather than place them on top of it.
02What do the Sing and Deep controls do?
Sing adds brightness, while Deep adds overall thickening.
03What happens as the volume is raised?
The 6L6 power valves provide more saturation as the amp is turned up.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsSound
- Preamp
- 2 x 12AX7
1 detailsPickups & controls
- Controls
- Input, Sing (Treble), Volume, Deep (Bass), STBY (Warmup) and Power
1 detailsBody & build
- Color
- Orange
3 detailsConnections & power
- Speaker Outputs
- 1 x 4 ohm or 2 x 8 ohm/1 x 8 ohm or 2 x 16 ohm/1 x 16 ohm
- Output Power
- 30 watts
- Power Amp
- 2 x 6L6GC
2 detailsSize & weight
- Dimensions Wxdxh
- 21.7 inch x 9.5 inch x 10.6 inch
- Weight
- 39.2
