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1000s back

Technical data:

Type: transistor class-D, high end
Power: 2×400 Watts/4 Ohms, bridged 1×800 Watts/8 Ohms
Damping: >2000/1 kHz/4 Ohms
Inputs: 2x 5 MΩ impedance, independent gain
Tone control: 4 band active
Protection: short circuit, open output, DC-protection output, temperature protection, mismatch, clip, delayed switch on
Divers: mute-out, headphone output, -6dB switch, phase turn switch, studio quality symmetrical line-out with pre-post switch
Output: 3x Speakon
Weight: 2 kgs
Hxwxd: 7x23x20 cm

The 1000S is an ultra compact amplifier of hxwxd  7x23x20 cm,  with a total weight of  2 kgs. The 1000S is suitable for both bass guitar and double bass.Thanks to the application of the newest technics the 1000S is completely quiet, even at full power. The class-D technics takes care of the absence of heat dissipation, resulting in a very compact design.

The 1000S is an amplifier with a continues power of 2×400 Watts/4 Ohms, bridged 1×800 Watts/8 Ohms. The 2 inputs have separate Gain controls. This allows you to connect 2 basses at the same time, or in case of a double bass, 2 pick ups. Both inputs have a separate gain control. The led above input 1 is a clip indicator which turns from green into red as soon as the input signal is too high.

Input 1 has a –6dB switch to reduce sensibility if  necessary. This could be the case by using an active bass guitar or double bass with separate pre-amp. The use of a separate pre amp for double bass piezo pick ups is not necessairy with the 1000S though. Input 1 is also provided with a phase turn switch, which can be useful connecting a double bass with two different pick ups. By means of the switch one puts one pick up out of phase, resulting in a different sound.

The pre amp is also equipped with a mute out to tune the instrument soundlessly. The internal signal is then interrupted and will be available at the mute out to be sent to for instance a tuning gear. The tone control unit is a 4-band type and is very easy to use. The frequencies are 80, 250, 800 and 2500 Hz , +/- 12 dB. The amplifier has been built in such a way that in normal acoustic circumstances there will be no need to use the tone control.

At the back of the 1000S are 3 Speakon loudspeaker outputs with switch, a headphone output and a symmetrical line out with pre/post switch. The pre/post switch controls the point in the amplifier circuit where  the line out signal comes from.

The headphone can be controlled by means of the gain and master knob. The 1000S has a built-in start delay and is protected against short circuit and clipping. The  1000S is powered by a class-D power amplifier, resulting in an extremely stable amplifier which works noiselessly. The high efficiency of the class-D power amp makes any cooling redundant.

The HEVOS 1000S is a Dutch product, made in Holland.

German bass magazine BassQuarterly tested the 1000S amplifier. Conclusions:

“ The sound of the HEVOS 1000S – as one would expect from Hevos – is just excellent , hot and spicy , transparent, with very pleasant mids and clear highs . The amplifier is responsive and dynamic , has both in bridged and non-bridged mode an almost infinite power and more than enough volume for all conceivable stages, and impresses with its simple operation and flexible sound settings . The loudspeakers make the the finer points then . With a pair of 15 “speakers  you can create a deep bass sound at earthquake level. Yet even with one or two smaller boxes (2 x 10 ” or 1 x 12 ” ) the 1000S convinces with a rich , powerful bass, a snarling midrange and crisp highs. The 1000S is multifunctional, whether you play metal, rock , pop , funk, country or jazz. It mastered all these skills.  The same multifunctionality goes for the used instrument, whether it is a bass guitar , double bass or acoustic bass guitar. 

The HEVOS 1000S is a Dutch masterpiece of the highest level and ideal for bass players who are looking for a clear, undistorted sound quality . It’s light, small, compact , very powerful , very flexible and multifunctional in use . The performance  is excellent, the sound clean , refined and full. The operation is simple , the build quality is excellent and of the highest level , and it produces no noise at all . The price of this high-end amplifier is very attractive . ”