![]() ![]() ![]() #Klipsch kg 4.2 woofer plus#That, plus a class D amplifier recently purchased (strongly influenced by positive reviews/comments regarding its musicality) will be my first amp+passives experience on the desktop. Yes, this assessment is 100% subjective I've done no testing apart from whatever my ears reveal to me.Ĭurrently in my desktop setup, I've just purchased a high-quality 2-way speaker, a sealed design, said to have particularly bass for a speaker this size (ATC SCM12 Pro). It's also true with subs, where I find sealed to sound best. This was true with big living room speaker systems and it's true in the last 2-3 powered monitor set-ups on my desktop/nearfield system. All 3 are flat, accurate and fast with the right equipment in front of them.Īs I look back on various speakers I've had over the years, the very best sound, particularly in lower registers, came from sealed designs. A 10 inch 3 way in a sealed box, an 7 inch mtm in a ported box and a 12 inch 2 way (big Heil amt) in a passive radiator box. Oddly enough in my own speakers at home right now, I have 3 pair built. ![]() #Klipsch kg 4.2 woofer driver#Every driver does change spec as it is used over the years and fact is, a sealed box comes much closer in keeping its original sound as it wears and a ported box is the same. A passive radiator works similarly in that as you add mass to the radiator, it will like a port, change frequency where there is a peak or dip and by how much. There are many ported speakers out there that are great. Where Richard was not quite accurate in his description is that it is completely feasible to port/vent a driver to be very smooth and accurate bass, it is then a function of a well damped amplifier to control it. When we do a ported speaker, Lengthening the port lowers the frequency of air moving through the port so changes the frequency the woofer peaks at. Yes, A passive radiator is more of a vented or ported design. Even the Richard Hardesty post is more opinion and not cast in stone. Hi guys, Well, a lot great info, a few minor inaccuracy's. In turn, this implies that Thiel's passive radiator is a "good" trade-off between sealed and ported enclosures. So, Hardesty was a big fan of sealed enclosures (and even bigger fan of Vandersteens) yet he implied that the Thiel's passive radiator sounded not too different from that of a sealed enclosure. Alignment is unusual and bass is tightly controlled with little evidence that the enclosures are not sealed. They have vented bass loading utilizing passive radiators rather than ports. A side benefit is that reduced excursion will also produce lower steady-state harmonic distortion measurements.Īnd Hardesty in his review of the Thiel CS6 in APJ Vol. The one advantage that vented enclosure designs offer is a reduction in cone excursion at low frequencies.Reduced cone excursion allows vented designs to play louder. There is one very good reason-high output. You might ask why anyone would choose to make a vented subwoofer. Vented subwoofers offer inferior performance compared to sealed enclosure subwoofers of equivalent quality in the following areas: transient response, phase response, group delay,and low frequency extension. ![]()
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