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Hughes & Kettner GM40DH GrandMeister Deluxe 40 40W Guitar Amplifier Head

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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 Delux... Click To Read More About This Product


Gear returned in mint condition. If you're looking for a virtually new instrument in possibly less-than-perfect packaging, this is a great value.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
Gear returned in great condition, with only minor signs of use, such as slight scuffs or pick marks. It looks and plays like new and may be considered an equivalent to display units found in retail stores.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
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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.

Deluxe Tone Technology
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 H&K's 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 the company's 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 H&K's 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!

App for iPad: GM40 REMOTE
Want to remotely control your all-tube tones in real time? The free GM40 REMOTE App for iPad lets you do just that with GrandMeister Deluxe 40. Whether you’re on stage, in the studio or at the rehearsal room, you can now watch, touch and control all your amp’s features on one handy screen, and you can back up, store and share all your favorite sounds too – and you can even make the whole process cable-free by using H&K's handy WMI-1 wireless MIDI interface.

Pro Coverage
Manufacturer's Warranty
One year warranty on solid state amps. 2 year warranty on tube amps.

Guitar Center's Pro Coverage
Pro Coverage gives you added warranty protection for your gear. Stepping in where the manufacturer's "normal wear and tear" coverage ends, our Pro Coverage program offers you upgraded coverage if your product ever fails Click To Read More About This Product.

Pro Coverage includes
  • Accidental damage protection
  • Expedited repair or replacement
  • Free shipping (for returns or repairs)
  • 100% coverage for commercial use
  • Extended price protection
  • No lemon guarantee
  • Free transfer of coverage to a new owner
  • Repair costs covered for up to five years from date of purchase
  • Repair authorization-toll-free by phone or via the web
  • Customer Reviews

Review Snapshot

by PowerReviews
Hughes & KettnerGM40DH GrandMeister Deluxe 40 40W Guitar Amplifier Head

(based on 4 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



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  • 1 Stars




of respondents would recommend this to a friend.

Reviewed by 4 customers

Displaying reviews 1-4

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(1 of 1 customers found this review helpful)


most versatile tube amp!

By thomas

from undisclosed

Verified Buyer

Comments about Hughes & Kettner GM40DH GrandMeister Deluxe 40 40W Guitar Amplifier Head:

Great and very versatile. You have to buy the pedal board for this or you're not really going to be able to utilize the amp in the way it was made to be used. I think several improvements could still benefit this amp. Over all though its very rocking. I used it with the show I am Scarecrow which has music that ranges from modern metal to classic rock and its great. I also use it with my rockabilly trio and its totally awesome. I play in the Heart tribute band Bad Animals and it can handle the 70s classic rock tone as well as the 80s heaven chorused delayed high production tone. very versatile.

(1 of 1 customers found this review helpful)



By Ghostpuncher

from Austin, Tx

Comments about Hughes & Kettner GM40DH GrandMeister Deluxe 40 40W Guitar Amplifier Head:

I wanted a small head unit that could push a 4x12 orange cab with V30s and still give me my tone. I have tried other lunchbox sized that cost 3 times less, but they fall short. I like lots of amps, Mostly high watt combos. I tried the tubemeister 36 but it lacked some oomph so I decided I would just go for the deluxe series. The 36 was discontinued so I've been waiting months for this 40 to come in. I play jazzy metal/ djent and use Jackson, ibanez, BC Rich. I have used mostly Peavey, Marshall, stacks, combos, Maxon, Boss effects and mix match everything as needed.
I already had a tiny bit of experience with this lunchbox style H&K so figuring out the controls was easy. Even getting use to the effects was easy. (Manually trying to figure out where your knobs were set after dialing in effects and switching back was and continues to be lame)
This head has plenty of power and gives me a great tone with volume set as low as one. I didn't even have to soak to 1watt. i don't use the presence so all have to say is I don't like it past 1 and up. Yuck. The r so an extra is a great addition and helped huge in getting my tone, not that I crank it, but having that extra bit of modeling really helps. Reverb has plenty of headroom to the point of ridiculousness but sounds natural as do all the effects. The noise gate...awesome. Really tightens it up. I don't use the loop so no comment. The EQ is pretty nice. Good mids and treble, bass is a little weak, but then there's that resonance. The boost is ok but I almost always use a distortion pedal to help get my sound and no exception here.
The clean is very nice with and without effects. The crunch, lead and ultra are all pretty basic in my opinion, like most amps. But like I said , I use a overdrive pedal and with that, I get a really killer and brutal metal sound that is not out of control. There's chunk and grit and tang and it wants to be loud to show you what it can do. The redbox is awsome. I'm really digging this head.

  • Was this a gift?:
  • No

(1 of 6 customers found this review helpful)



By Brian Voodooman Hardiman

from Omaha,Ne

See all my reviews


  • This amp is all you need,,, PERIOD.


    Best Uses

      Comments about Hughes & Kettner GM40DH GrandMeister Deluxe 40 40W Guitar Amplifier Head:

      This amp delivers and then some,,, I can't wait to get mine!!!


      After almost a year

      By Mad consumer

      from Austin Tx

      About Me Experienced


      • Easy To Use
      • Excellent Sound
      • Portable
      • Powerful


        Best Uses

        • Amateur Recording
        • Events
        • Home Studio
        • Performances

        Comments about Hughes & Kettner GM40DH GrandMeister Deluxe 40 40W Guitar Amplifier Head:

        After almost a year this mini head has become a paperweight. Initially I gave a rave review for its sound and functionality. The tubes are garbage. Popping crackling and finally kapop and it's over.
        I just brought home a new axe to try on this expensive block and it's dies on me. Not reliable at all.

        Displaying reviews 1-4

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