Roland AC-33

Acoustic Stereo Amp

  • 2 Channels
  • Power: 2 x 15 Watt
  • Battery operation: 2x 10 Watt, 8 hours
  • Equipped with: 2 x 5" speakers
  • 40 seconds looper onboard
  • Digital effects and Anti-Feedback function
  • Controller Guitar Channel: Volume, EQ (bass, mid, treble), Chorus switch
  • Controller Mic / Line Channel: Volume, EQ (bass, treble), Chorus switch
  • Line output
  • AUX input
  • Dimensions: 32 x 22 x 24 cm
  • Weight: approx. 4.7 kg
  • Colour: Black
  • Includes power supply unit
  • Suitable optional bag: Art.112187 (not included)
No JavaScript? No Audio Samples! :-(

Audio Examples

 
0:00
  • Bossa Pickup
  • Strumming Pickup
  • Voc
  • Bossa
  • Bossa Line
  • Classical
  • Classical-Line
  • Violin
  • Violin Line
  • Mandolin
  • Mandolin Line
  • Resonator
  • Resonator Line
  • Ukulele
  • Ukulele Line
  • Indie 12-String
  • Indie 12-String/Line
  • Andalucian
  • Anadalucian Line
  • Fingerstyle
  • Fingerstyle Line
  • Virtual Grand-Piano
  • Virtual Grand-Piano/Line
  • Vocal Piano-Duo
  • Vocal Piano-Duo/Line
  • Show more

Further Information

Power in Watts 30
Speaker size 2x 5"
Channels 2
Reverb Yes
Effects Processor Yes
External FX Loop No
Microphone Input Yes
Line Input Yes
Battery Operation Yes
Footswitch connection Yes
Incl. Footswitch No

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Our most popular Acoustic Amps
79 Customer Ratings
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  • 1
4.7 /5
  • quality
  • features
  • sound
  • handling
Total
quality
features
sound
handling
Roland AC 33
Nicholas W., 26.09.2014
I think this amp is fantastic the quality of sound is amazing I am particually impressed with the reverb and effects. The built in looper is also very easy to use but you really need the pedal not supplied. The build quality is also very good I haven't used the amp outside yet which is the primary purpose . The volume level even at the highest gain does not distort or break up. This amp is an acoustic amp ang gives a warm clear sound. This is a very versatile piece of kit and ideal for home and studio use. With a line out it can be plugged into a pa and th amp used as a monitor. The build quality is also very good though I would have preferred a metal speaker mesh than the cloth.
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Total
quality
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A good amp for electro-acoustic guitar
David Chamberlain, 18.12.2017
I originally bought this amp as a portable solution for small jazz gigs with trios/duos. Sadly it does not produce much sound before it starts to break up and I think there are better options on the market as far as this purpose is concerned. However, I have also used it to amplify my nylon-stringed electro-acoustic guitar for which purpose it works very well, even with a full rhythm section in a large concert hall. I would recommend this amp for amplifying electro-acoustic guitars but not for general use with semi-acoustic or solid guitars.
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Hmm, nothing wrong with it, so why did I sell it?
Timddeb., 17.07.2018
Well, for the stated power it was quiet. We got more out of a 5W VOX! Features didn't really live up to the hype. I kept it for too log and ended up selling it for a loss
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Total
quality
features
sound
handling
AMPLI ROLAND AC 33 sur secteur et batterie
Frédéric G., 24.05.2011
Ampli guitare acoustique fonctionnant sur secteur avec adaptateur fourni et sur batterie (8 piles de type AA)

2 hauts parleurs restituant une puissance de 2 x 15W sur secteur et 2 x 10W sur batteries. Le son n'est pas très puissant, l'utilisation d'un préampli est recommandée. Il est toutefois suffisant pour une utilisation à domicile, mais pas assez pour une utilisation en répétition.
Le système du bloc batterie est pratique et ingénieux: il s'agit d'un boitier amovible dans lequel viennent se loger les piles. Il est donc possible de retirer le boitier et les piles en une seule manipulation lorsque l'ampli n'est pas utilisé pour un moment ou lorsque que l'on joue sur secteur. (ce qui est recommandé même si la notice donne un avis contraire)

LE SON:
La définition du son est d'excellente qualité pour un ampli de cette gamme. Les effets (chorus reverb delay) sont suffisants pour jouer en acoustique puisqu'il s'agit bien d'un ampli acoustique. A noter deux types de chorus: chorus classique et une seconde forme de chorus n'étant permise que par les 2 hauts parleurs stéréo. L'un des hauts parleurs restitue la note sans distorsion tandis que l'autre la restitue avec chorus. L'effet n'est persceptible que lorsque les deux sons se mélangent dans l'air. Effet intéressant et agréable à entendre.
L'ampli est de plus équipé d'une béquille pour le maintenir orienté vers le haut et favoriser la diffusion du son. Un détail qui a son importance surtout pour les amplis de petites taille et de puissance limitée.

LE PANNEAU DE CONTROLE:
Panneau de contrôle et potards classiques de chez Roland. 2 voies séparées avec contrôle tonalité 3 bandes sur la voie instrument et contrôle tonalité 2 bandes sur la voie mixte micro / instrument. La définition du son en acoustique est meilleure sur la voie instrument seul. Le son transmis par les capteurs piezo est de bonne qualité, sans le timbre dur et métallique souvent inhérent à ces capteurs. L'autre voie peut accepter sans problème une guitare avec capteur magnétique, mais préampli obligatoire.

Il dispose également d'une boucle d'enregistrement de 40 secondes environ avec possibilité de superposer les enregistrements. Pratique pour enregistrer une rythmique en frappant sur la caisse de la guitare ou une boucle d'accompagnement, et la reproduire à l'infini pour jouer par dessus.
La qualité de l'enregistrement est moyenne d'autant que l'enregistrement démarre automatiquement lorsqu'il détecte le début du jeu. Il faut donc une certaine puissance de sortie. Une arpège joué tout doux aux doigts ne sera pas forcément détecté et l'enregistrement ne se fera pas.

Essayé avec des guitares acoustiques 6 cordes et 12 cordes dotées de capteurs piezo et préampli externe, ainsi qu'avec une demi caisse jazz. Le son avec la demi caisse est plus gras et manque de clarté mais c'est très souvent le cas en branchant ce genre de guitare sur des amplis purement acoustiques.

BILAN:
Le Roland AC 33 reste un petit ampli mobile et au prix abordable. Et il rempli bien ce rôle. Ce n'est pas un ampli de scène.
Parmi les autres amplis mobiles de même gamme il est un tout petit peu plus cher mais la qualité de son et de l'appareil le mérite.
Je recommanderais l'achat.
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$435
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Available immediately
Available immediately

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