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Hughes & Kettner Grandmeister 40 Deluxe Amp Head




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    Product Description

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    Here's what Hughes & Kettner say about the Grandmeister 40 Deluxe:

    GrandMeister Deluxe 40 combines all-tube tones and smart control features in a supremely playable package! On top of its plethora of amazing sounds, every knob and switch setting on GrandMeister Deluxe 40 can be easily saved, stored and recalled at the touch of a button, and the studio-quality on-board effects settings are saved right along with the gain and EQ knob values. It’s pure tonal magic…

    Can you imagine having instant access to any iconic all-tube guitar sound you can imagine? GrandMeister Deluxe 40 gives you exactly that – a stunning sonic experience and a whole new level of guitar tone quality – thanks to Deluxe Tone Technology, which pairs groundbreaking new circuit design advances with renowned tone-shaping capabilities, all inspired by our flagship TriAmp Mark 3. From sparkling vintage clean to throaty crunch, a beefy brown sound and crushing levels of all-out gain, sonic freedom the touch of a button away with GrandMeister Deluxe 40!

    Save your favorite all-tube tones with the push of a button 

    Saving and recalling your favorite GrandMeister Deluxe 40 sounds is an exercise in convenience with the optional FSM-432 MK III MIDI board, which lets you store up to 128 presets and recall them with the tap of a toe. All of the amp’s parameters are saved, including gain, EQ, and all effects settings, giving you a practically inexhaustible library of different sounds. Pot values are saved via our ingenious Smart Rotary Control technology – which also lets us keep the GM40’s panel clean and easy to use, with only 9 pots instead of 14 per channel!

    Channels and FX

    With GrandMeister Deluxe 40, there’s a channel and accompanying effect to suit every six-string style. The Clean, Crunch, Lead and Ultra channels can be sculpted to your heart’s content with the powerful EQ and gain controls – and don’t forget the Boost, which kicks specific frequencies up to 11 to give you snappier, creamier or beefier tones, depending on your selected settings. On top of that, you can layer on lashings of studio-quality reverb, delay and modulation effects (choose from chorus, flanger, phaser and tremolo) to take your tone to new levels!

    Amazing all-tube recorded tones without mics

     Red Box AE is the latest version of our award-winning DI box with speaker emulation – and it’s built into GrandMeister Deluxe 40, meaning you’ll never need to worry about where to place your cab mic again, onstage or in the studio! Red Box AE’s DSP-driven Ambience Emulation authentically mimics that room-filling sound of a 4×12 cab and delivers an ultra-direct attack of pure tube tone goodness by tapping your signal between the power amp and the Power Soak.

    Rock on Stage. Play at Home. Record at Night.

    GrandMeister Deluxe 40’s luxurious appointments and smart features like the built-in power soak give you everything you need to rock the world’s biggest stages, enjoy Deluxe tone at an agreeable room volume at home, and silently capture spine-tingling tones at night without a cab or microphone. This is truly the definitive do-it-all all-tube amp!


    • CHANNELS Clean, Crunch, Lead, Ultra
    • POWER 40 Watts
    • POWER SOAK 20, 5 , 1, 0 Watts
    • POWER AMP 4 x EL84
    • PREAMP 3 x 12AX7
    • TSC Yes
    • EFFECTS LOOP Serial, switchable
    • REVERB Digital Spring Reverb
    • MULTI-FX Tap-Delay, Modulation (Chorus, Flanger, Phaser, Tremolo)
    • MIDI In, Out/Thru
    • RED BOX RED BOX AE (Ambience Emulation)
    • FOOTSWITCH FSM-432 MK III (optional)
    • SWITCHING FUNCTIONS Presets / Channels, Boost, Delay, Modulation
    • SPECIAL FEATURES Deluxe Tone Technology, Preset/Global Power Soak, Noise Gate, Smart Rotary Controls
    • SPEAKER OUTPUTS 1 x 8-16
    • DIMENSIONS 445 x 170 x 150 mm
    • WEIGHT 7,7 kg
    • PROTECTIVE COVER Softbag included
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    Here at Andertons Music Co. we believe that we stock some of the best musical equipment in the world. That's why we want to make it as quick and easy as possible for you to get your order, safe and sound!

    We offer a wide range of delivery options to help fit around your busy lifestyle without compromise. This includes free, named-day delivery for most UK postcodes on orders over £99 which are in stock, Saturday & Sunday deliveries, and competitive delivery rates worldwide.

    Please note: Some UK postcodes including remote areas and Northern Ireland are subject to charges.

    You can find full details about the services we offer, including details on our international delivery charges, on our main delivery page. Click here to read more.

    Customer Reviews


    10 reviews





    Mr simon OVENDEN31st Mar 2022

    this amp is the most versatile all valve amp I've ever played. from crystal cleans to a dirty blues all the way to high gain metal tones all right there in a small package. I'm still yet to explore the full range this amp can offer.

    Value 5Looks 5Durability 3Sound 5

    Mr John Archer24th Feb 2022

    The Clean and Crunch tones are excellent, as are the built in effects. Soon becomes very intuitive and simple to use. Obtaining a really rich fat, creamy lead distortion sound for solos, is proving difficult, but otherwise, the amp rocks. A few quirky noises when using controls and noise gate can seemingly effect trail off of chord/notes occasionally if full on.Pity the FSM foot pedal does not include a tuner!

    Value 4Looks 5Durability 4Sound 4

    Trusted Customer28th Oct 2021

    Amazing amp, does everything and more

    Value 5Looks 5Sound 5

    gary jones31st Jul 2021

    Looks 5Sound 5

    Mr. Gordon Wilkinson1st Apr 2020

    I like H&K kit. For technology it is way ahead of other guitar amplification. I already own a Triamp 3, but bought the GMD40 because it is more portable and can be controlled even more using MIDI. Both sound amazing but both have required repairs within warranty, hence my durability and VFM ratings. I should add that H&K support were responsive and helpful with my tech support questions - not all related to fault issues.

    Value 4Looks 5Durability 2Sound 5

    Trusted Customer17th Dec 2019

    Awesome amp. Played for 2 weeks. Can't say anything bad about it.

    Value 4Looks 5Durability 4Sound 5

    Callum Parkin23rd Mar 2019

    Fantastic stock, looks and sounds great!

    Trusted Customer4th Mar 2019

    Beautiful full body tones. Loads of headroom. Selectable from 40, 20, 5, 1 and finally 0 watt You can really get the tubes cooking at lower wattage. Perfect for home use and then turn it up to 20 or 40 watt for gig. Loads of power.

    Mr. Peter Nugent1st Jan 2019

    Great sounding amp and versatile - although you do need to buy extra kit to interface & control it ! As there is no display on the amp to indicate its status/channel etc it took me a while to understand and get it working with my Line 6 Helix unit.

    Trusted Customer23rd Nov 2018

    Awesome bit of kit. Sounds beautiful.

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