What should be the power of the receiver, considering the existing speakers?

remomoreira

I have a Sony Mutek Ddw2000 Home Theater, including the STR-DG520 Receiver.
Unfortunately, a receiver channel has been damaged, and has no repair.
I then need to replace this receiver.

These are the technical specifications of the broken receiver, and of its speakers, which I intend to keep with me:

RECEIVER
Output power*
(6 ohms, 1 kHz, 10% THD)
Surround Mode Output (Reference) *
RMS Output
FRONT: 140 W per channel *
CENTER: 140 W per channel *
SURROUND: 140 W per channel *
SURROUND BACK: 140W per channel *

(*) Measured at 127 V AC, 60 Hz

Inputs:
Analog Sensitivity: 800 mV / 50 kohms
Digital: (Coaxial) Impedance: 75 ohms
Outputs (Analog):
AUDIO OUT Voltage: 800 mV / 10 kohms
SUB WOOFER Voltage: 2 V / 1 kohm
Tone:
Gain levels ± 6 dB in 1 dB steps
Playback frequency range: 28 - 20,000 Hz

SPEAKERS:

Front Speakers (SS-MSP16)
2 way system, 3 units, magnetically shielded
Speaker Unit:
Woofer: 160 mm, cone type × 2
Tweeter: 25mm, Horn Type
Cabinet Type Bass reflex
Nominal Impedance: 6 ohms
Dimensions (W x H x D) (Approx.): 250 × 950 × 274 mm
Weight (approx.) 14.1 kg

Center Speaker (SS-CNP16)
Speaker system: 2-way, 3-unit, magnetically shielded
Speaker Units:
Woofer: 100 mm, cone type × 2
Tweeter: 25mm, Horn Type
Cabinet Type Bass reflex
Nominal Impedance: 6 ohms
Dimensions (W x H x D) (Approx.): 514 × 174 × 223 mm
Weight (approx.) 4.9 kg

Side Surround / Rear Surround Speakers (SS-SRP16)
Speaker System: Full Range
Speaker Unit: Woofer: 100 mm, Cone Type
Enclosure Type: Bass reflex
Nominal Impedance: 6 ohms
Dimensions (W x H x D) (Approx.): 171 × 216 × 163 mm
Weight (approx.) 1.5 kg

Subwoofers (SA-WP16)
Speaker System: Active, Magnetically Shielded Subwoofer
Speaker unit: 250 mm cone type
Enclosure Type: Acoustic Volume-loaded Bass Reflex
RMS output: 165 W (6 ohms, 100 Hz, 10% THD)
Input: LINE IN (input jacks)
Power: 127 V / 220 V AC, 60 Hz
Consumption: 80 W
Dimensions (W x H x D) (approx.): 335 × 410 × 412 mm including front panel
Weight (approx.) 10.6 kg

I would like the guidance of friends here on the forum, which should be the RMS power per channel of the receiver I shall buy, considering the rest of the home theater, ie the speakers, since the new receiver will work with them.

I appreciate the help.

txcoastal1

Replace the receiver w/denon/marantz, or Yamaha adventage receiver with preamp outs for possible future upgrades

“Accessories for less” website has good deals

pitdogg2

10% distortion whoa....

FestYboy

That 140W output rating is bloated. 10% distortion would be beyond unlistenable. Go with the above-mentioned suggestions, even if they're rated at half the Sony, they will give far better performance.

Tony M

2nd on replacing receiver with another brand.

remomoreira

txcoastal1 wrote: »

Replace the receiver w/denon/marantz, or Yamaha adventage receiver with preamp outs for possible future upgrades

“Accessories for less” website has good deals

Thank you!!

remomoreira

FestYboy wrote: »

That 140W output rating is bloated. 10% distortion would be beyond unlistenable. Go with the above-mentioned suggestions, even if they're rated at half the Sony, they will give far better performance.

Thank you!

mrloren

Do not mess with non ES Sony AVR's. Not the best in the world.

Look at the above A4L for a Denon/Marantz or Yamaha