From my recent experience of using two sub woofers in a control room environment, I can say that this is definitely a much easier and better way to achieve an even frequency response of a sound system at low frequencies. However, there is no doubt that room acoustics is the most important issue to be solved before one can start playing with the audio system – a bad sounding room to start with will never allow a balanced response.
There is no doubt that equalizers play a very important role in the room tuning process but they should be viewed as the final tool and used in moderation to make good sounding space sound even better. Two or more sub woofers provide a path of adjusting low frequency response without introducing any additional artifacts to the sound chain.
The best options will be those units that provide polarity, phase, crossover and equalization adjustments. To place them correctly in the room, one should follow a cautious process of acoustical measurements with the proper equipment and most importantly, a good pair of ears to make the final decisions. This process should involve an acoustician and one or two other audio engineers – in the end what really matters is how it sounds.
- Renato Cipriano
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