Verified answer

Well, well, that’s quite a dilemma…

First things first, the excellent Concept Two loudspeaker from Paul Hales and company, Hales Design Group, was/is neither known for nor capable of producing a “heavy bass effect”…plain and simple; for that you really need one or more dedicated high-performance subwoofer systems to handle reproduction chores below 80 Hz.

No disrespect to Parasound’s excellent HCA-2200II power amplifier but without the opportunity to actually audition both in-house I would lean toward the Electrocompaniet AW250R stereo power amplifier even though the AW250R amplifier carries a higher total cost of ownership. Though both are excellent amplifiers I personally do not believe the AW250R and HCA-2200II are on equal footing; power amplifiers from Parasound’s Halo product line would be more comparable. Nevertheless, both amplifiers are capable of excellent performance when properly matched with the right equipment.

For a better feel of the design philosophies behind each piece of equipment I strongly encourage everyone of interest in either of these two products to read the first two articles listed below to which I have provided links.

RESOURCES

[PDF] John Curl Interview

http://www.parasound.com/pdfs/JCinterview.pdf

Story of the “Otala” Amp

http://home.online.no/~tsandstr/OtalaStory.htm

Parasound HCA-2200II 2-Channel Power Amplifier

http://www.parasound.com/vintage/hca2200.php

Electrocompaniet AW250R Stereo Power Amplifier

http://www.electrocompaniet.com/products/classic/p...

FM Acoustics

– [PDF] “Power Amplifiers and Real-World Speaker Impedances”

http://www.fmacoustics.com/pdf/audiophilpoweramp.p...

– [PDF] “Like a Swiss Watch”

http://www.fmacoustics.com/pdf/swiss_watch.pdf

The preamp only tactics the sign, the amplifier will only tension the audio gadget you have connected. maximum audio gadget are designed to sound sturdy and balanced alongside the entire audio spectrum (above 50hz) subs are designed for decrease bass (80hz and below). you may desire to alter the bass effect interior the preamp yet which will only provide you extra bass interior the audio gadget. the situation with this, is that giving extra bass to the audio gadget, motives the amplifier to artwork harder and hence upload distortion to the speaker itself. To get deep bass you like an outboard subwoofer or quite a few subs. This additionally motives issues. because of the fact an overabundance of bass will drown out the top frequencies interior the room. you like a intense-high quality balanced sound alongside the entire audio spectrum. For bass deep down and occasional, i could advise paying for a great sub like the SVS PB13 extremely, which provides you with clean deep bass with little distortion, yet alter it to hit while mandatory (80Hz or decrease) and not just to have alot of bass. The amps you have stated via how are great amps, yet are designed for audio gadget use only and not subwoofer use, only purchase a powered sub with it extremely is very own amp and you'd be sturdy to bypass. additionally 40 two (answer to all) bass doesnt might desire to be timbre matched, hence why you could upload any sturdy sub to any speaker gadget. The audio gadget might desire to be timbre matched so the pass of sound is equivalent from front to returned alongside all audio gadget. Subs on the different hand are designed to easily spotlight deep decrease frequencies and not one of the top, so timbre matched subs isn't no longer mandatory in any respect. extremely i won't be able to keep in mind any sub that lists "Timbre matching" hence why subs like SVS, Hsu, ED and Epik are extremely known between audiophiles, because of the fact those subs have great sound and power and can bypass with any speaker gadget.