Do $2k speakers + DSP = $50k speakers?


Now that I have your attention, I’d like to share one of my recent experiments. Like many of you, I've never truly been satisfied with my system and often consider purchasing higher-end speakers. I have a variety of speakers in my house including small, high-quality monitors, and mid/high level floor standers and a few subs (all names left intentionally blank) from $2k to $15k. One part of me enjoys the flexibility of monitors while the other part prefers the full-range sound of floor standers. I have a mid-sized room with some strategically placed panels, but the room is average at best.

As a fun project, I used Dirac room correction and bass management, via a MiniDSP unit, to tweak the frequency response of my floor standers. I then used Room EQ Wizard to further tune the frequency response and properly integrate my subs. They sound “good” (and far better than they did without the EQ), but I suspect they’re ultimately limited by the room. I then used this result as a baseline to see how far I could go with my monitors (1/10 the price of the floor standers). I set up my monitors in nearly the same position and went through the same process. I worked to bring the response as close as I could to the floor-stander baseline as possible. I did not fully invest the time to seamlessly integrate the subs, but I must admit I was pretty shocked as to how close I got things when I A-B'ed them.

There are so many speaker manufactures out there with unique strengths and focuses. If you select a speaker with good quality drivers, a solid cabinet, low distortion, good off-axis response, and solid engineering behind it, is the only hurdle left frequency response differences? Can a $2k speaker (with subs and DSP) = a $50k speaker? Thoughts?

hifiguy5

I have been pondering the same question for a while and do think it is possible with the right monitors (untested hypothesis). Kalman Rubinson of Stereophile, in his review of the Kii Audio Three hinted at the answer: “If I use Dirac Live equalization to correct my room's sound, my current reference speakers, the Bowers & Wilkins Diamond 802 D3s, don't sound much different from the Kii Threes….” The Kii’s are $12k (and he was not using Subs) compared to his $22k B&Ws. The Kii’s use inexpensive drivers according to diyAudio (Peerless $20 x 4, Dayton $16 and Seas $74) but do rely on sophisticated DSP techniques. I would be very curious if one uses a less expensive well-engineered monitor with “good quality drivers, a solid cabinet, low distortion, good off-axis response” such as the $4k Revel M126Be or $4k Ryan S610, (both that can get to ~50 Hz) and add subs and DSP, the sound can actually get there. Anyone in my area with Revel’s want to conduct a fun experiment?


A similar question to ask is can adding DSP to an existing system/room make $2K speakers sound like $12K speakers, all else being equal? 
Big boxes only are necessary for low bass. If you properly integrate stand mounted speakers with subwoofers, it becomes competitive with their bigger box siblings. If the tweeter and midrange speakers are the same, a pair of subwoofers sounds great if properly integrated. DEQX or a high-end DAC with low and high pass filters (Bel Canto Black EX) is the only way I have successfully integrated subs.
Well if you buy into the Harman school of audio theory, there should be no audible difference between a passive speaker using a quality DSP like DiracLive vs an active speaker with room correction, provided both speakers have similar directivity, since frequency response at the listening location dominates what we hear.