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Acoustic Image Ten2 S4 2X10 Combo Amp - Used  From Acoustic Image

The world's smallest and lightest 2X10 combo amp.


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Acoustic Image Amps

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What We Think

Condition: Used, Very Good

This amp packs a serious punch! With both forward and down firing 10 inch speakers, this amp can handle a broad range of thick sound that amplifies your acoustic instrument and takes your performance to the next level! flat response that brings out the true tone of your fine acoustic instrument.


About Manufacturer

Although Acoustic Image is a relatively young company, it is owned and operated by people with decades of experience in the professional music and sound industry. They're engineers (and, like their customers they're also musicians) who insist upon superior sound quality and reliable performance from our audio equipment. Acoustic Image was founded because they were never satisfied with the products available for the working musician. If you play guitar or bass, violin, keyboard, a woodwind or even a brass instrument, or you are a vocalist, they've got a sound reinforcement product designed with you in mind. Great product designs go far beyond having the right knobs in the right places. Acoustic Image’s company charter is to design and build unique, innovative, and functional audio products... there is nothing "me too" about what they do. In essence, they have merged advanced acoustic design and switching amplifier technology to create incredibly compact, ultra-lightweight products offering highly accurate sound for serious musicians. Ultimately, their pledge to you is for quality... to build a well-constructed reliable audio product that serves you well night after night, year after year. And, quite frankly, they believe the best way to do that is to design and manufacture each and every Acoustic Image product in the U.S.A. Their Technology Applying "musical thinking outside the box", they have taken a different approach to the technology of musical instrument amplification in order to improve the performance and portability of combo amps for the working musician. So, what's so unique about their products? There are three key differences: 1) The use of downfiring low frequency drivers 2) The use of switching power amplifiers and switching power supplies instead of the traditional linear designs 3) The use of unique enclosure shapes to improve portability and sonic performance Each of these differences provides an improvement in the performance of their products. Here's how: The downfiring woofer makes a small driver sound bigger and allows a smaller enclosure for a given driver size. Omnidirectional output produces a more natural and more transparent sound, and means you are more easily heard on the bandstand. The switching (Class D) amplifier design is smaller and more efficient than traditional linear amps. It has less weight because there are no heatsinks or cooling fans and it has a unique "warm" sound (unlike traditional solid state amps) because its output stage is radically different from traditional amps. The switching power supply eliminates large bulky power transformers with a resulting dramatic decrease in weight. With their unique enclosure shapes, form follows function. A cylinder is an inherently stiffer enclosure. And no resonances in the enclosure walls means less coloration in the sound. Also, the stiffer enclosure allows the walls to be thinner and lighter in weight. Add to that the use of acoustically inert polymer materials and the cabinet becomes ultra light. We don't use these new technologies to “be different.” They use them because they make their products better. It all adds up to a more portable, better sounding products. Because of their small size and high sound quality, they virtually disappear on stage, leaving the sound of the instrument being amplified, only louder.


Frequency Response

30 Hz-18 kHz (40-14 kHz ±3 dB)


>118 dB/m (Ten2)

AC Power

100V to 240V, 50/60 Hz automatically switched


17" H x 15"W x 13" D


32 lbs


Frequency Response

20 Hz - 20 kHz (±0.5 dB)

Signal to Noise Ratio >110 dB at direct out
Controls and Inputs

Mic Input

600Ohm balanced, XLR connector, switchable 10 dB gain

Phantom Power

48 volts, on/off switch w/LED indicator

Instrument Input

1 Mohm impedance, 1/4" jack

Direct Out

+4 dB, balanced, XLR connector, ground lift, pre/post EQ selector, switchable 10 dB pad

Effects Loop

Parallel type

Low Control

Shelving type, ±12 dB at 50 Hz

Low Mid Control

±12 dB at 250 Hz

Hi Mid Control

±12 dB at 1200 Hz

Treble Control

Shelving type, ±12 dB at 8 kHz

Phase Reversal

Switchable 180° phase reversal

Low Cut Filter

-12 dB/octave sweepable from 30 to 150 Hz

Speaker Emulator

(if selected) -12 dB/octave at 4 kHz




24 bit digital with 3 programs


Reverb with variable decay time, 
Delay/Reverb with variable delay time
Delay with variable delay time
All have variable wet/dry mix and “pseudo stereo” capability

Power Amp


Class D (PWM)

Switching Frequency

500 kHz

Output Power 8 Ohm

300W rms continuous, 350W rms music 
(40% duty cycle), 500W peak transient

Output Power 500W rms continuous, 650W rms music 
(40% duty cycle), 1000W peak transient

Ext Speaker Output

Speakon type (pole 1), 2W min load including internal speakers, if connected

Speaker Components


Dual 10 inch, one downfiring with level control, one forward firing


2.5 inch forward firing with attenuation control


Passive, alignment corrected

Impedance 4Ohm
Power Rating 500W

Included Accessories

Fitted slip cover with cord storage pocket and shoulder strap