I have a room of around 25 square meters ( large: 4.5 m, long: 5.6 m) and plan to set up a home theater room. By chance , I visited an Audio equip. shop and got a recommendation from seller as follows:
Aimpli: Denon 2808
Standfloor speakers: B & W 704
Surround speakkers: B & W 705
Center speaker: HTM7
Subwoofer speaker: SW700
I want to use this complex to listen music, see film and sing Karaoke sometimes.
I highly appreciate if someone can evaluate this complex and provide me some suggestion.
Thank you in advance.
I'll try to help you out with some suggestions - but please - look up my posting history so that you realize the relative value/qualification of my posts in relation to advising you of relevant objective performance vs. cost vs. human auditory perception.
Go for the B&W 705 speakers all the way around (L, R, C, RR, RL, RC). It's a great midbass and treble speaker - and you need to use a decent pair of stereo subwoofers - and you will have superior performance compared to using the floor stand version 704. You do not want to get a different speaker for the center channel - superior performance will always be had by using identical speaker for the center as compared to the main left and right channels.
For the subwoofers, ditch the retail unit idea. Purchase two of the entry level SVS subwoofer, which are just over $400 each. These offer verified/measured superb performance for the dollar, as far as commercially available subwoofers go. Using two is critical, in order to get seamless integration with the main channels, equaling the bass integration would get with full range towers. You simply place each subwoofer within about 5' of each L and R main channel speaker and use an active crossover unit to combine them.
For the amplifier solution - we need to revise some things here if you want the best sound quality.
Get a surround receiver with pre-outs(critical) and use outboard amplifiation for the front 3 channels(left, right, center). You will purchase a DSP xover/EQ processor called the Behringer DCX2496 and insert this between the receiver pre-outs and the outboard amplifiers and subwoofers. The DCX is far more powerful for loudspeaker management, as compared to any receiver. The DCX will allow the ideal/perfect crossover slopes/types to be used, and at any specified point, along with custom response shaping filters to contour the linear B&W 705 speaker response to your personal preference. Not many speaker are suited for such response modfication - as they are not normally neutral enough to begin with - but the 705 is an exception. The 705 also has somewhat less cabinet resonance as compared to most speakers in it's class.
The DCX2496 unit has 3 analog inputs and 6 analog outputs. You would set your receiver to output the 2 main channels are 'large' with no crossover and subwoofer output set to 'off'. You would run your center channel set to around 75 Hz. Route the pre-outs for L, R and C to the DCX inputs. You will use the DCX to split the signal/xover to the 705 mains and to the stereo subwoofers. Since the DCX has 6 outputs, you have plenty of channels to feed/control 5 output channels(L, R, C and stereo subwoofers). The DCX has precision/highly variable shaping filters that can be used to do things like control subjective 'tightness' of your subs, or apply gentle graduation slopes to the mains to reduce sibilance from too flat of a treble response, or to customize the baffle step compensation curve to fit your particular acoustic space/room placement to give the most accurate/realistic 'weight' to vocals/instruments.
For the rear/surround channels you will set these to 'small' and use the reciever's built in amplifiers/crossovers. These are non-critical channels - and you do not need the processing power of the DCX2496 here.
Unconventional? Yes. But if you want the best possible sound quality for the set up you would use such a set up.
-Chris
P.S.: As for karaoke, I do not recommend singing live over normal home speakers unless you have some sort of dynamic compression being applied to the vocal mix before it is amplified. Straight live vocals can be extremely dynamic(40dB peaks are possible), thus causing possible damage to the speakers unless some sort of dynamic compression stage is present.
