Boss ACS Acoustic Singer Pro

Acoustic Guitars & Vocal Amps

  • Professional acoustic amplifier with premium features
  • 120 Watt Bi-Amp design
  • Loudspeaker configuration: specially developed 8-inch woofer and tweeter
  • 2 Independent channels with discrete analog input circuit and 3-band EQ
  • Guitar channel with "Acoustic Resonance" to make the sound of piezo pickups sound more natural
  • Microphone channel with phantom power
  • XLR/jack combo connector
  • Chorus-FX for guitar channel
  • Delay/Echo-FX for microphone channel
  • Additional delay/echo FX for both channels (independently controllable)
  • Harmony function automatically creates vocal harmonies by real-time key/chord analysis at guitar input
  • Integrated looper
  • Independent anti-feedback controls for each channel
  • 2 XLR DI sockets for output of the individual channels (either directly or after the effects section) or of both channels
  • USB port for direct recording to a connected computer
  • Looper, harmony and effects can be controlled via optional foot switches
  • Dimensions (W x D x H): 417 x 330 x 358 mm
  • Weight: 14.5 kg
No JavaScript? No Audio Samples! :-(

Sound samples

 
0:00
  • Bossa
  • Bossa Line
  • Country
  • Country Line
  • Male Vocal
  • Male Vocal Line
  • Mandolin Folk
  • Mandolin Folk Line
  • Picking
  • Picking Line
  • Swing Fiddle
  • Swing Fiddle Line
  • Ukulele
  • Ukulele Line
  • Show more

Further information

Power in Watts 120
Speaker size 2x 8", 1x HT
Channels 2
Reverb Yes
Effects Unit Yes
External FX Loop No
Microphone Input Yes
Line Input Yes
Battery Operation No
Footswitch Connector Yes
Incl. Footswitch No

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4.8 / 5.0
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The Boss ACS Acoustic Singer Pro amp ... the trs good sound ... just missing ...

Wilfer, 15.12.2017
Already, he is beautiful! ... pretty color
All that a guitarist-singer or singer-guitarist is waiting for ... the 2 in 1!
Ideal in "front" but also back of stage with its 2 independent DI outputs and the possibility to choose the sending with effects or without on the voice and the guitar.
My Galato Unico (classical type) sounds serious and the percussive effects are well reproduced. Compasses and other coins are faithfully returned. I would not be surprised to see this amp land in the circles of gypsy guitar and flamenco!
2 distinct rows to manage the voice and the guitar.
The 3rd input is a stereo mini-jack located at the back so hard to access. A third row in front would have been a plus for full access to the settings.
I connected my BeatBuddy (drum machine controllable foot). We give up the headphone output ... too much blast so option adapter "2 mono jacks output of the BeatBuddy" to stereo mini-jack ... no more breath but here I lose the volume management of the BeatBuddy ... d where my comment on the 3rd row!
Now if the amp included a module "drum machine" in the spirit of the BeatBuddy, it would have been ideal.
The looper with the FS-5U (essential in my opinion to take full advantage of looper function) is top! because of a simplicity of use ... without having to leave the heavy artillery (RC300 or VoiceLiveExtreme) ... a jack mono + FS-5U and nothing else.
40s max loop in a bit short for pieces with AABA structures ... 80s would be ideal.
The control pedal Roland GA-FC is an undeniable added value for the control effects ... ex use: guitar "looped" without reverb and chorus with reverb / activation and disabling the harmony effect.
I planned to go a long way with this amp ... so flycase ordered ... the custom Thoman ... of course!
Live side, direct immersion the day after his reception for a show with singer ... successful baptism ... the DIs sent on my gear Bose (tower + ToneMatch) ... big acoustic sound and no feedback!
The USB output of the amp is recognized as a sound card 2 inputs, allowing easy implementation of live recordings.
Wilfer
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Good guitar sound and great features, vocals sound better

mixingman, 25.08.2018
I returned the amp because the Fishman Loudbox Artist Pro-LBX-600 promised me more. In order to make it easier for other musicians to choose the right acoustic amp, I will describe below my experiences with the BOSS Acoustic Singer Pro. I've been looking for an amp that offers DI single outputs for both channels, which both the BOSS and the Fishman can do. With the Fishman these outputs are fixed before the effects, with the BOSS you can switch the position of the outputs, which is a great feature.

My Martin 000-17E with Fishman Piezo sounded very clear across the amp with glittering highs and deep, rich basses (in contrast, the Fishman Loudbox Artist Pro-LBX-600 sounds much more mid-range, which appeals to me more). The mids, especially the mid-peaks (maybe from 2KHz) are a little bit retarded at the BOSS ACS. A mid-boost on the amp does not help, as it also amplifies the lower mid-tones that take away the clarity of the sound. A workaround to get more highmids is the Acoustic Resonance function, which is supposed to simulate resonances of the guitar, but also has a strong influence on the frequency image. On the second level (yellow light) the emphasis is on the middle. At this stage, the sound (with my guitar and for my taste) sounds most balanced. Only if you hit the strings very hard do the centers hurt a bit with this function. The other two Acoustic Resonance stages amplify the heights for my taste a bit too much, which are already quite present anyway. To this function, there are also numerous videos on Youtube, on which one hears the influence on the frequency image well. From the Acoustic Resonance function you should not promise too much, the guitar still sounds like a piezo, it may add a little more depth, but that is very subtle, mainly a shaping of the frequency image can be heard.

The sound via a dynamic microphone (have a SM58 and a AudixOM7 connected) is unfortunately pretty dull for my taste. If you turn up treble, this boosts the S-lute tremendously. That's why I ordered the Fishman for comparison to see if it could do any better. The Fishman amp has a microphone sound that is already very clear on its own, you hardly need to readjust, and the S-lute sounds not annoying compared to the BOSS.

Of course, the BOSS with the Harmony and the Looperfunktion has two great bonus features in the luggage. Ultimately, the sound is the most important and there is the Fishman Pro-LBX-600 for me the clear winner and even 140 EURO cheaper.
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Online guides
Acoustic Guitar Amps
Acoustic Guitar Amps
Before buying an acoustic amp, it’s important to consider exactly what you want it to do.
Guitar Setups
Guitar Setups
The range of available guitars and amps has never been greater than it is today, and a huge variety of sounds are easily accessible.
Online guides
Acoustic Guitar Amps
Acoustic Guitar Amps
Before buying an acoustic amp, it’s important to consider exactly what you want it to do.
Online guides
Guitar Setups
Guitar Setups
The range of available guitars and amps has never been greater than it is today, and a huge variety of sounds are easily accessible.
 
 
 
 
 
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Offers include 21% Belgium VAT and are valid as long as stocks last. Shipping costs to Belgium are 2,50 EUR, free shipping on orders above 49 EUR. Please click here for international Shipping rates. We do not accept liability for typographical errors or inaccurate information of any kind. *RRP = manufacturer's / distributor's recommended retail price in Germany
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