Stabilizer - Surge protection for AVR

[Sylar]

I will be getting a Marantz sr7005 receiver in a couple of days. I am looking for recommendations for Stabilizer & Surge protection.

Manual states 700W as power consumption for the AVR. What VA rating should I be looking at? Would 1 KVA suffice, or shd I look for higher?

I was looking at these two products, APC, VGuard

Also Have a couple of related Questions...
1. Since the specs mention 700W as power consumption will it ever consume more than that?
2. On an average what power would the unit consume if it is driving 1-10 watts of power to the speakers. More importantly, is there something I could do to minimize power consumption?

 

[ZeGhostbear]

Have you considered the APC H15 (or H10). It has gotten a very favorable review on Audioholics. It can now be had for around $220. I already own one and will probably add another two soon.

 

[90gstman]

First you should look at all the equipment you will be pluging into it not just the AVR. A plasma TV for example will draw a few hundred watts.

I do have an APC H15 and can recommend it. It came in handy this winter when the power went out for a day and I hooked up the generator. The line voltage was all over the place 105v to 130v and H15 keep my AV components at 116 to 124v.

 

[cpp]

One thing you should check if you can afford it. Have a separate outlet run to your fuse box with enough amps handle all of your equipment. While the electrician is there have them check the ground to ensure you have no influence bleeding over and affecting your audio/video signals. You would be surprised how many people complain about noise and blame their speakers or amp/receiver when it's a refrigerator/lamps/microwave running on the same outlet (breaker) bleeding over adding noise to the signal. I have been using Panamax power management and they have systems that range from $200 - $1000, they do a great job plus there are other systems out there.

 

[PENG]

I will be getting a Marantz sr7005 receiver in a couple of days. I am looking for recommendations for Stabilizer & Surge protection.

Manual states 700W as power consumption for the AVR. What VA rating should I be looking at? Would 1 KVA suffice, or shd I look for higher?

1 kVA will suffice if it feeds only the SR7005.

1. Since the specs mention 700W as power consumption will it ever consume more than that?

Yes it would probably consume quite a bit more during peaks if you turn the volume high enough, but not continuously unless you abuse your system and your own ears.

2. On an average what power would the unit consume if it is driving 1-10 watts of power to the speakers.

If it is delivering average power of 10W to the speakers, the power amp section will probably draw 25 to 30W and the prepro section about 60 to 80W so total power draw from your mains would be around 90 to 110W average.

More importantly, is there something I could do to minimize power consumption?

Not much other than don't listen to rock music, listen at moderate level, use pure direct mode and turn it off when not in use should help. Practically speaking, it is the prepro section that consumes most of the power not the power amp unless you listen to the kind of stuff such as rock concerts and at very high SPL. Movies, classical music etc. tend to draw high peak power but low average power.

You don't pay for power, you pay for energy, that is WHR (watt hour) or kWHR (kilowatt hour).

1 kW continuous for 1 hr = 1 kWH of energy but 1 kW for 3.6 seconds consumes only 1 WH or 1/1000 kWH (kilowatt hour).

 

[PENG]

I will be getting a Marantz sr7005 receiver in a couple of days. I am looking for recommendations for Stabilizer & Surge protection.

Manual states 700W as power consumption for the AVR. What VA rating should I be looking at? Would 1 KVA suffice, or shd I look for higher?

1 kVA will suffice if it feeds only the SR7005.

1. Since the specs mention 700W as power consumption will it ever consume more than that?

Yes it will probably consume quite a bit during peaks if you turn the volume high enough, but not continuously unless you abuse your system and your own ears.

2. On an average what power would the unit consume if it is driving 1-10 watts of power to the speakers.

If it is delivering average power of 10W to the speakers, the power amp section will probably draw 35 to 50W and the prepro section about 65 to 80W so total power draw from your mains would be around 100 to 130W average.

More importantly, is there something I could do to minimize power consumption?

Don't listen to rock music and listen at moderate level, use pure direct mode should help. Practically speaking, it is the prepro section that consumes most of the power not the power amp unless you listen to the kind of stuff such as rock concerts and at very high SPL. Movies, classical music etc. tend to draw high peak power but low average power.

You don't pay for power, you pay for energy, that is WHR (watt hour) or kWHR (kilowatt hour).

1 kW continuous for 1 hr = 1 kWH of energy but 1 kW for 3.6 seconds consumes only 1 WH or 1/1000 kWH (kilowatt hour).