help

[marialenchristian18]

hi im new on creating my first 5.1 surround sound system i already buy a set of floorstanding,center,surround,and subwoofer..now im looking for an amplifier which are compatible for my new 5.1 system and this are the specs of my system the floorstanding is magnat quantum 755 it is 190 watts and 4 to 8 ohms impedence my center is the magnat quantum center 73 it is 120 watts and it is also 4 to 8 ohms and for my surround i have the pure acoustics supernova bookshelf speaker it is 120 watts and it is also 4 to 8 ohms impedence.Now im choosing between the onkyo tx nr626 which is 170 or 160 watts per channel and the denon avr 520bt which is 130 watts per channel..can you help me which amplifier is compatible to run my system..sorry i can't find a best adviser expect you hope you help me and thanks for advise

 

[lovinthehd]

First, speaker wattage ratings are the maximum before meltdown generally, do you plan to use these at maximum volume? At 93dB sensitivity they're relatively sensitive and won't need a lot of amp to become quite loud. I doubt seriously you could/would want to use the max power anyways, at least not before your ears bleed and the speakers go into power compression. AVRs of this range aren't famous for handling 4 ohm loads at full power, either. While both avrs would probably be fine at moderate volumes, they may well run out of juice at very high volumes, particularly if the speakers spend significant time near the 4ohm end of their rating.

Do both avrs meet your feature requirements other than power? How far away is your seating position from the speakers?

 

[tyhjaarpa]

Speaker wattage ratings are max they can handle so don't worry about them. As your speakers dip to 4 Ohm you should look for higher model receivers imo to avoid problems. Wattage rating is not so important here either unless your space is big. I would look for at least mid range Denon / Marantz / Yamaha receiver with the features you need.

 

[marialenchristian18]

First, speaker wattage ratings are the maximum before meltdown generally, do you plan to use these at maximum volume? At 93dB sensitivity they're relatively sensitive and won't need a lot of amp to become quite loud. I doubt seriously you could/would want to use the max power anyways, at least not before your ears bleed and the speakers go into power compression. AVRs of this range aren't famous for handling 4 ohm loads at full power, either. While both avrs would probably be fine at moderate volumes, they may well run out of juice at very high volumes, particularly if the speakers spend significant time near the 4ohm end of their rating.

Do both avrs meet your feature requirements other than power? How far away is your seating position from the speakers?

 

[marialenchristian18]

first of all sir thanks for advise anyways i don't want to play my system to the full max volume and i have a medium size room all i want to know is are those avrs are compatible with my system?? thanks sir

 

[marialenchristian18]

first of all sir thanks for advise anyways i don't want to play my system to the full max volume and i have a medium size room all i want to know is are those avrs are compatible with my system?? thanks sir ( denon and onkyo are available here but yamaha and marantz are not)

 

[lovinthehd]

I think either will be fine, they are quite similar; choose on which has the features you want/need.

 

[marialenchristian18]

but its okay to run a lower watts speakers on the higher watts amp and reverse?? this is my case on that ( especially on onkyo because it has more features than the other) thank you sir

 

[KenM10759]

It's OK either way, though if the amplifier is of a higher rating than the speakers don't turn it up all the way just to hear "how loud does it go?"

 

[tyhjaarpa]

Onkyo have got some quality issues I believe so I would skip that and go with Denon. Watts on either amp/speakers don't matter as long as the amp can deliver clean watts and the watts don't go too far over what speakers can handle. If at any point your speakers start to sound bad / make weird noises put the volume down immediately to avoid damage.

 

[marialenchristian18]

okay sir thanks but the onkyo has a great feature but as per your advice maybe i will go with the Denon sir

 

[lovinthehd]

Onkyo had reliability issues with certain hdmi boards/network chips and even extended their warranties for such after the fact. Last few years reports of problems haven't been to those levels. FWIW. Most avr manufacturers contract things out, Denon's recently moved from China to Vietnam. Might be for the better but not enough time has passed to tell....

 

[marialenchristian18]

okay sir i will go with the Denon sir thanks agin for you advise and time to help me