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550 BlueGrass

50W/35W - 6L6 (Guitar / Bass)

For both bassists and guitarists

The 550 BlueGrass is an incredibly simple multi-instrument amp for bassists and guitarists who want a little more than 35w.

Bassists will find the precise and round sound of a tube amp, and above all, it is transportable.
As for guitarists, they will as well find their account with a dominant clean to become an excellent platform for pedals, passing by dynamic effects (compression, distortion…) or / and by temporal effects (reverb, delay, chorus…).

The vintage crunch sound will also be present with the possibility to control it with the gain knob.
Multi-instrument ? Harmonists and keyboardists of good Rhodes will be won over, for sure!

1.599,00 
Customize
Possibility of payment in 3x
Standard version (tolex) in stock and ready to ship
Custom 4 to 6 weeks
Premium technical support
Manuals

Perfect for bassists and guitarists alike

Bassists
Appreciate the precise and round sound of a tube amp, coupled with portability

Guitarists
Explore a dominant clean tone, ideal for pedal enthusiasts and dynamic effects. The vintage crunch sound is easily controlled with the gain knob.

550 BlueGrass offers a versatile 35W / 50W experience

Power Options
Switch from 50W to 35W for adaptability in any environment.

Complete Configurations
Premium 6L6WGC (x2), 7025 WA Highgrade (x1), 12AT7, GZ34.

Tech specs

Make it yours

Explore ou range of included personalization options. Looking for something totally unique ?
Lets' talk !

Custom options

Included Accessories

Convenient & protective: dust cover tailored for the amp.

Handbuilt
in Belgium

About Invaders Amplification
Sweep for medium boost
Bright Switch for each channels
Crunch for normal channel
Volume Control your volume
Inputs high or low for gain adjustment.
Impedance Selector 2 - 4 - 8 Ohm
Power switch 35W to 50W

Technical specifications

We use top-quality components known for their unmatched reliability, creating gear that stand the test of time.

50W / 35W Full tubes 6L6WGC (x2) 7025 WA HIGHGRADE (x1) 12AT7 (x1) GZ34 (x1)
Speaker Outs 2 x 2 – 4 – 8 Ohm
Channel From a clean/crunch tone
Master volume Control your volume
Equalization Classical feature: Bass and Treble
Sweep Switch Frequency curve variation for medium boost
Bright Switch Brightens the tone
Crunch Switch Adjust your gain for the clean/crunch
Sizes W: 44,5cm / D: 20,5cm / H: 23cm
Weight 12 Kg

What you buy

  • 1 x 550 BlueGrass Amplifiers, Clean / Crunch
  • 1 x Dustcover
  • 1 x Power cable (1.5 m)
  • 1 x Invaders Amplification Certificate
  • 1 x User manual - download
  • 2 x Years warranty (3 months for consumables)
  • 1 x Premium technical support

Samples & Reviews

Check them all

550 BlueGrass Demo

550 Bluegrass by Esche Haus Audio

Loris Tils 550 Bluegrass & Classy cab Signature

Bass demo

550 BlueGrass : THE pedalboard platform

Diego introduces us our 550 BlueGrass

How to order ?

Standard version

If the standard black version is your choice, you can order it through our online shop or visit one of our authorized dealers near you.

Custom version

Come and say Hi !

Sometimes it’s easier to choose your customization preferences with us. Make an appointment and discover the Invaders Amplification workshop in Belgium.

Make an appointment

Find nearest dealer

Locate an Invaders Amplification dealer near you for an immersive experience with our top-tier products. Our authorized dealers offer personalized guidance and hands-on exploration of our gear, ensuring you find the perfect match for your musical journey.

Invaders Amplification Worldwide Dealers

Shipping information

Here are the details on our global shipping practices, delivery timelines, and options tailored to your preferences. Your journey with Invaders Amplification is about to set sail.

Shipping agent

Or ask us for your preferred carrier!

Shipping costs

Workshop Free
Belgium from 5,00 €
International from 30,00 €

Estimated delivery price after quotation or shopping cart.

Production and delivery timelines

At Invaders Amplification, we prioritize swift delivery for our shop products, ensuring they reach you within 3 days. For customized orders, the meticulous craftsmanship takes approximately 4 to 6 weeks before your bespoke creation is crafted and dispatched to you.

Invaders
around the globe

What our customers say
Nelson - Skip the Use
January 2024

With Invaders amplifiers, I am sure to always achieve the perfect tone and dynamics, whether on stage or in the studio. Moreover, they prove to be excellent pedal platforms, providing exceptional sonic flexibility. A comprehensive solution to meet all our musical requirements.

LB
Louis Bonnet
September 2023

Exceptionnel. J'ai choisi le 535. Mes autres amplis sont relégués au rang de vulgaire casserole. Merci pour la qualité de votre travail.

Ghalia Volt
EV
Eric Vauthier
June 2023

Invaders Amplification soutien Ghalia Volt on tour ! Le blues au son fat et gras comme l’aime Ghalia !

Gaël Ligier - Gaël Ligier
January 2024

Le 950 est une véritable machine de guerre, que ce soit au niveau de la construction ou bien du grain il est devenu la réponse au son que je cherchais depuis si longtemps!

BS
Bruno Saget
July 2023

Je joue sur un 850 Devil depuis quelques mois et cet ampli, en plus d'être superbement réalisé, sait absolument tout faire. Du clean cristallin à la disto la plus serré ! Il est à l'aise dans toutes les configurations (studio, scène) et me suit maintenant partout.

Bravo à la team Invaders.

S
Slasher08
May 2022

Je m'y suis rendu la première fois pour un changement de lampes sur mon ampli. Excellent travail et entretien réalisé sur la bête en très peu de temps à un super tarif. N'hésitez pas à demander conseils auprès du gérant, il est très pro et connaît parfaitement son métier. Je recommande à 100% !

CV
Cédric Vanstraelen
January 2022

Une équipe de passionnés pour des amplis passionnants. N'hésitez pas à sonner à leur porte pour essayer les bêtes.

AC
Adn Chx
March 2022

Travail très professionnel et très à l'écoute de ses clients.
Je ne peux que recommander !

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