Poate ar fi mai potrivit ca in loc de amplificator si 2 boxe sa achizitionez numai 2 buc (sau este suficient numai 1 buc ?) boxe active Behringer B2030A ?.
http://www.soundonsound.com/sos/sep04/articles/behringerb2030a.htmDin caracteristici notez aici:
- 75W amplifier driving the bass/mid-range
- 35W powering the ferrofluid-cooled, soft-domed tweeter.
Alte cateva caracteristici:
Like the earlier Truths, both drivers are set into a moulded baffle trim that incorporates a tweeter waveguide to control directivity, and both drivers are magnetically shielded for use near TV monitors or the few antiquated glass CRT computer screens not currently awaiting disposal at a car-boot sale.
The active crossover, which is set at 2kHz, utilises fourth-order (24dB/octave) Linkwitz-Riley filters, and the speakers are also designed to be used with or without an optional subwoofer, though they manage a perfectly decent low end without one. Separate high- and low-frequency limiters look after the self-preservation interests of the drivers, and there's an automatic standby mode that puts the amplifiers into sleep mode if the speakers aren't used for more than five minutes. They wake up almost instantly on receipt of an audio signal.
An input gain trim control allows level adjustment from -6dB to +6dB, and there are slide switches to adjust the frequency characteristics of the speaker to suit different environments. At the low end, the response can be flat, -2dB, -4dB, or -6dB, which the manual tells us is to accommodate an optional subwoofer or to simulate the response of smaller speakers. A further switch compensates the low end to take account of room placement, and this again offers flat, -2dB, -4dB, or -6dB options. Normally bass attenuation is only needed if the speakers are located close to a wall or corner, as the boundary effect causes a rise in bass energy, but it may also be useful to reduce the bass output slightly in smaller rooms. At the high end, the switch positions are +2dB, flat, -2dB, or -4dB to suit the HF reflectivity of the room in which the speakers are used. Unfortunately the manual doesn't give any details of what frequencies these filters are set at, so all adjustments must be made by ear.