Which brand Preamplifier and MULTICHANNEL POWER AMPLIFIERS bass effect is best ? I NEED HEAVY BASS EFFECT?

Question

ROTEL PRE &POWER

Lexicon PRE &POWER

DENON PRE &POWER

Parasound PRE &POWER

Adcom PRE &POWER

Theta PRE &POWER

Answer 1

I see you're looking at spending many thousand dollars at a midfi or high fi system. I'm sure all of those stereos are relatively good, but they're not designed for booty shakin'. Their goal will all be to reproduce music as closely as possible to what the recording engineer(s) mastered onto your CDs and records. Bass boost is anathema to this high(er) end audio crowd; most even eschew tone controls and equalizers. But, if you need the bass, a large-diameter shall work fine despite their intentions. Just crank it up so it drowns out the rest of the music and you will be pretty happy, no doubt.

Go to a high fidelity store and audition both combos and integrated sets. Buy whatever sounds best, and note that the bass sound is dependant upon the sub more than anything these days.

Answer 2

You really need to look at the whole system to get an idea of bass reproduction and the overall sound output. Speakers, powered subs processor and amps as well as the room all play a role.

It is not only the processor but the speakers themselves that affect the output. Really you want accurate reproduction of sound so powered subs timbre' matched to your speakers would be best.

Edit:

So you would ignore the spectrum response, and just go with any old sub huh. I admit is not as critical as channel matching speakers but the sub needs to seamlessly fit it a response. Given the equipment he is looking at I would think that tonal reproduction would be key. Overall I have seen systems that are mid bass heavy ( look at Krell) . A DSP may be a good idea for room correction as well. Shure sells a DSP 4800 where two would be a good match. Don't discount the others mentioned above. At this level though it would be foolhardy not to audition equipment or consult a pro. And i would add not going "ghetto" by not adding a timbre' mathced sub.

Answer 3

If all you want is deep deep heavy bass, choose the cheapest and use the extra money to buy a good sub woofer such as velodyne. Only a sub woofer can provide the chest busting 10HZ and below ooomp.

It's best to connect the sub woofer through the speaker terminals. Be sure however that the amp will detect the sub woofer as a load, as some amps such as ONKYO digital amplifier will shut down as it will not detect the sub woofer when connected to speaker- B as the subwoofer has a high impedance compared to the standard speaker impedance of 8 ohms and below.

Answer 4

The preamp just processes the signal, the amplifier will just drive the speakers you have hooked up.  Most speakers are designed to sound good and balanced along the whole audio spectrum (above 50hz) subs are designed for lower bass (80hz and below).  You could adjust the bass effect in the preamp but that will just give you more bass in the speakers.  The problem with this, is that giving more bass to the speakers, causes the amplifier to work harder and hence add distortion to the speaker itself.

To get deep bass you need an outboard subwoofer or several subs.  This also causes problems. Because an overabundance of bass will drown out the upper frequencies in the room.  You want a nice balanced sound along the whole audio spectrum.  For bass deep down and low, I would suggest buying a great sub like the SVS PB13 Ultra, which will give you clean deep bass with little distortion, but adjust it to hit when needed (80Hz or lower) and not just to have alot of bass.

The amps you have mentioned by the way are great amps, but are designed for speakers use only and not subwoofer use, just buy a powered sub with it's own amp and you will be good to go.

Also 42 (answer to all) bass doesnt need to be timbre matched, hence why you can add any good sub to any speaker system.  The speakers need to be timbre matched so the flow of sound is equal from front to back along all speakers.  Subs on the other hand are designed to just highlight deep lower frequencies and none of the upper, so timbre matched subs is not not needed at all.  In fact I can't recall any sub that lists "Timbre matching" hence why subs like SVS, Hsu, ED and Epik are highly regarded among audiophiles, because these subs have great sound and power and can go with any speaker system.