Orange Marcus King MK Ultra Signature Guitar Amplifier Head 30 Watts
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Earn rewards every time you shop at AMS. You'll collect points on eligible purchases that turn into promotional savings on future gear, with points typically available several days after your order ships. All you need is a free AMS account — no credit card, financing, or payment plan required.
The more you shop, the more you earn. Create a free account and start earning from your very first eligible purchase. Rewards are applied as a discount on future eligible purchases.
Earn points on eligible purchases with AMS Rewards and turn them into savings on future orders, no credit card required. You can apply points at checkout once they’re available.
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0% Interest
Payment Plan
Don’t sell your soul to a creditor to get the gear you need. At AMS, we want to lower the barriers to create. That’s why we offer in-house 0% financing, and you don’t even have to open a new line of credit! Spread out payments on your credit card to simplify financing and avoid hefty late fees or service charges. Cost shouldn’t interfere with your creativity.
A completely unique design that offers a new approach to the classic Orange sound. Created in conjunction with guitar phenomenon and Grammy Award nominated singer/songwriter Marcus King, the MK Ultra is our first-ever Amplifier designed and built in the USA. Using the highest quality components available, including American-made custom Heyboer transformers, this hand wired 30 watt all-valve guitar amplifier represents a marriage of classic vintage American and British tonal sensibilities. Make no mistake though, this is not a copy of any previous vintage design with some slight modifications.
The MK Ultra features very carefully tuned input circuitry that not only responds amazingly well to different volumes and tone settings on your guitar but also takes pedals extremely well and moulds them together into the tone instead of sitting on top. This is driven by a pair of 12AX7 preamp valves into a power amp section consisting of a duet of 6L6GC power valves that are cathode biased. This choice of output valves is a first for Orange, bringing out all the harmonics and touch sensitivity that Marcus demands.
While this is a truly unique artist signature model, players from many different genres will be able to dial in their own tones and sounds. From country to blues, classic rock to jazz fusion, and everything in between, the range of this simple 3-knob design has to be heard to be believed.
Tailored EQ, Fit for “A King”
This one-of-a-kind circuit design features EQ controls in different parts of the circuit, and are totally independent. The specific ranges and frequencies of these controls were voiced for Marcus so that it’s impossible to dial in a bad sound.
The VOLUME control
This is really as big as a tone control as the other controls. With the MK Ultra being a cathode biased amp it is urgent with a fast response time at low volume settings, making it a perfect partner for your pedal board. As you increase the volume control you will hear more saturation with the 6L6’s starting to break up giving you an almost spongy attack that will sing and make you want to play more and more. Even at full volume you still have clear control via your guitar volume knob.
The SING (Treble) control
This can also be described as a variation input bright control, bringing you the tone you need for the atmosphere you are playing in. Adjusting the sound to pair perfectly with your guitar.
The DEEP (Bass) control
Think of this as more of an overall thickening to the sound. Start with this all the way down and after finding the Volume and Sing levels you want then increase the Deep control until you find the thickness you want.