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3

Introduction

 

Welcome

Thank you for choosing FlexBase25. The music-making environment continues to change, and the 

demands for monitoring evolve accordingly.  As modern music becomes more bass-intensive, the 

need to hear clearly into the lowest octaves becomes crucial. Ever tightening deadlines, last minute 

changes, and an increasing need to be able to have control over multiple segments of the project 

mean that monitoring must adapt to different demands.

FlexBase25 looks simple, but it houses a lot of new thinking. It is easy to set-up and intuitive to use.

It can be easily adapted to whatever task the modern sound engineer may encounter. We hope that it 

help you finish your project more quickly, while contributing positively to the creative process.

 
Anssi Hyvönen
Founder, CEO
Amphion  Loudspeakers Ltd.

The System

The FlexBase25 is an unconventional yet easy-to-place and simple-to-set-up approach to subwoofer 

design. For correct, well-translating decisions an engineer needs to have access to the stereo 

information throughout the whole frequency band. Mono subwoofers stem from a movie format and 

tend not to be sufficiently resolving for music use.

FlexBase is a single box, stereo subwoofer, which is placed in the centre line between the main 

speakers. Wide adjustment possibilities over crossover frequency (35-260 Hz), subwoofer level, 

as well as the mono-stereo spread allow FlexBase to address the needs of a rapidly changing 

landscape of modern music-making. With a turn of a few dials, the system can be adapted to

what best works for the project an engineer is working on.

FlexBase can be fat, fun, and vibey when writing and producing. It will be precise, correct, and 

analytical when putting the finishing touches on a song or a film score. The system will allow you to 

continue to use your monitors for a narrower midrange view, as FlexBase can be bypassed. FlexBase 

works with all Amphion products. Pair it with One12, One15, Two15 or One18 for a smaller room full 

range system or place it with behind the console while keeping your One18, Two15 or Two18 on the 

meter bridge.

Summary of Contents for FlexAmp500

Page 1: ...Handmade in Finland create FlexBase25 System Reference Manual...

Page 2: ...diagram Technical specifications Settings recall sheet 3 4 6 7 8 9 10 FlexBase25 delivery contains i 1 pc Amphion FlexBase25 2U Amplifier Crossover 1 pc Amphion FlexBase25 Tower 1 pc Neutrik Speakon...

Page 3: ...translating decisions an engineer needs to have access to the stereo information throughout the whole frequency band Mono subwoofers stem from a movie format and tend not to be sufficiently resolving...

Page 4: ...2 1 483 mm 19 2U 89 mm 3 3 4 5 4 Front panel controls...

Page 5: ...th As a general rule the smaller the main speaker the higher the crossover frequency Choosing the right crossover frequency can greatly help in achieving the smoothest low frequency response in your r...

Page 6: ...LFE signal such as the 1 in a 5 1 monitoring setup Sensitivity is 10dB compared to the main inputs and there is no built in low pass filtering applied In other words the crossover frequency does not a...

Page 7: ...HPF LPF HPF LPF AMP AMP FLEXBASE SPEAKER CROSSOVER FREQUENCY STEREO WIDTH LOW FREQ LEVEL LEFT INPUT RIGHT INPUT RIGHT OUTPUT LEFT OUTPUT LFE INPUT LFE LINK OUT 7 Block diagram...

Page 8: ...eter bridge it is advisable to raise the FlexBase to be more in line with the monitors by lifting the unit from the floor using solid non resonating material eg bricks or slabs A good starting point i...

Page 9: ...One way closed box stereo 2 x 25 cm 10 aluminum driver Active 4th order 35 260 Hz 117dB 20 260 Hz 3dB low pass 35 Hz 200 kHz 3dB high pass 50 kg 110 lb Output power Distortion Signal to noise ratio E...

Page 10: ...125 170 60 240 80 215 105 195 35Hz 260Hz 150 Mono Stereo 10dB 10dB SETTING NAME DATE 125 170 60 240 80 215 105 195 35Hz 260Hz 150 Mono Stereo 10dB 10dB SETTING NAME DATE 125 170 60 240 80 215 105 195...

Page 11: ...125 170 60 240 80 215 105 195 35Hz 260Hz 150 Mono Stereo 10dB 10dB SETTING NAME DATE 125 170 60 240 80 215 105 195 35Hz 260Hz 150 Mono Stereo 10dB 10dB SETTING NAME DATE 125 170 60 240 80 215 105 195...

Page 12: ...Amphion Loudspeakers Ltd Factory Headquarters Vitostie 1864 70800 Kuopio Finland Tel 358 17 2882 100 info amphion fi amphion fi Reference Manual Version 1 3 20 02 2019...

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