Yamaha RX-A1010 AVENTAGE A/V Receiver Review Measurements and Analysis
All measurements were conducted using our Audio Precision APx585 8 Channel HDMI Audio Analyzer. The Yamaha RX-A1010 was defaulted to high impedance mode (8-ohms or more) which is the setting we recommend using regardless of your loudspeakers impedance rating if you are concerned about achieving maximum output power and performance from this unit.
For more information about how we measure power amplifiers, please check out:
Yamaha RX-A1010 Preamplifier Measurements
I did some quick spot-checking on the RX-A1010 pre-amplifier gain structure to ensure it could be properly drive a wide assortment of power amplifier. My personal criteria for amplifier gain structure is that it should be able to hit full power when driven with 2Vrms. The RX-A1010 was able to deliver 2.8Vrms unclipped out of the analog multi channel outputs. Once I exceeded this output level, the auto protection circuits shut the receiver down. This is more than enough clean output voltage to drive any audio amplifier to clipping.
Yamaha RX-A1010 Analog Frequency Response
Frequency Response was ruler flat from 10Hz to 80kHz (the limit of the APx585 test equipment) with +-.025dB variation. The preamp gain (Av) = 13.9dB similar to what I measured on their RX-Z7 and RX-A3000 receivers.
Yamaha RX-A1010 FFT Distortion (HDMI In, -20dBFS, 1Vrms out)
Driving the RX-A1010’s HDMI input with a -20dBFS signal, I adjusted the volume control until I measured 1Vrms via the preamp outputs., The RX-A1010 displayed an excellently clean FFT distortion profile with the magnitude of the 2nd harmonic of (+0.435 +98.045)dBv = 98.48dBv or 100*alog^-1(-98.48/20) = .0012% THD + N. As you can see in the output, residual noise products are virtually nonexistent.
Yamaha RX-A1010 SNR (pre-amp driven via HDMI)
Using the HDMI input driven at -20dBFS with 1Vrms out of the preamp analog outputs, I measured 87.5dB (CCIR-2k filter engaged). This is an excellent measurement indicating the RX-A1010 would make for a clean preamp when connected to external amplification.
Yamaha RX-A1010 Analog Preamplifier Channel to Channel Crosstalk
I measured analog channel to channel crosstalk of the front main channels using the analog inputs and analog multi channel outputs. In “straight mode” crosstalk measured < 100dB at 20kHz which was outstanding. What was even more impressive was in “pure direct” mode, the channel to channel crosstalk was almost below measurable limit (-120dB) of my $40k AP APx585 Audio Analyzer. Yamaha really did their homework with component and trace routing in this baby. Anyone telling you separates provides better channel to channel isolation, have them look at the measurement graphs above.
Yamaha RX-A1010 All-to-One Crosstalk (HDMI In, Preamp Out 1Vrms)
The RX-A1010 exhibited commendable channel to channel crosstalk performance engaged in multi channel with all channels driven. With all channels acting as the noise source or disturber driven via the HDMI input, I measured each idle channel one at a time to determine the worst case channel to channel crosstalk. At 1kHz the RX-A1010 yielded about -90dB and -70dB @ 20kHz for its noisiest surround channel. I consider anything less than -40dB @ 10kHz acceptable so the RX-A1010 met that minimum requirement with >30dB to spare!
Yamaha RX-A1010 Power Amplifier Measurements
I had to engage “Pure direct” to get test signal on all channels using HDMI as the source. All levels were matched. In “Straight” mode, only front two channels turned on, until I engaged 7CH stereo mode or PLII but levels weren’t matched.
Yamaha RX-A1010 Frequency Response (HDMI In, Speaker Level Outputs)
With the RX-A1010 driven by a -20dBFS input signal via HDMI, I measured all channels driven at 8-ohms via the speaker outputs at 10 watts power level. Frequency response was again ruler flat from 10Hz to 50Khz, with a -3dB point at around 80kHz. Channel to channel variance was +-0.02dB variance which was incredibly tight.
Yamaha RX-A1010 FFT Distortion Analysis at Full Rated Power (110wpc)
The distortion spectra of the RX-A1010 amplifier overall is good. However as the RX-A1010 approached max rated power (110wpc) odd order harmonics started to dominate (29.56 + 55.05))dBv = 84.6dBV or 100*alog^-1(-84.6/20) =.006% THD + N. The 2nd order distortion product dropped 10dB at 1 watt which is quite low.
Yamaha RX-A1010 SNR (HDMI In, Speaker Level Outputs)
Driving the RX-A1010 with a -20dBFS input signal via HDMI, I measured 81dB to 85dB SNR at 1 watt with all channels driven. The RX-A1010 noise floor from preamp all the way through its power amp section is commendably low. I measure amplifier SNR at 1 watt to put everyone on equal footing and to also better gauge its low level performance where the amplifier spends most of its time operating at. I consider 80dB @ 1 watt (un-weighted) to be a good measurement which the RX-A1010 comfortably exceeded.
RX-A1010 All-to-One Crosstalk (HDMI In, Speaker Level Outputs 20watts)
I measured all-to-one crosstalk from the preamp input of the RX-A1010 all the way to the speaker outputs with each channel driven at 20 watts (except the channel under test). Channel to channel crosstalk was excellent (80dB @ 1kHz, 55dB @10kHz). Again this is a worst case crosstalk measurement. Simply measuring channel to channel crosstalk with only one channel acting as a disturber produced much better numbers (95dB @ 1kHz and 70dB [email protected] 10kHz). This is how most publications measure crosstalk but we tend to be harder on the products and test them in the worst case scenarios like these.
Using our Audio Precision APx585 8-channel HDMI analyzer, we conducted a full barrage of multi-channel amplifier tests on Yamaha RX-A1010 per our Amplifier Measurement Protocol. We tested power using three methods all of which were taken at < 0.1% THD + N:
- Continuous Full Power Bandwidth (CFP-BW) from 20Hz to 20Khz into 8 and 4-ohm loads (up to two-channels)
- 1kHz Power Sweep vs Distortion (1kHz PSweep) - popularized by the print magazines, this is an instantaneous power vs distortion test at 1kHz. The problem with this test is it often masks slew related and or frequency response problems some amplifiers exhibit at the frequency extremes, and thus inflates the measured power results. It does provide an instant gratification # for consumers to argue over on the forums so we are now incorporating this test to please the masses.
- Dynamic PWR - 1kHz CEA-2006 Burst Method testing. This is a dynamic power measurement adopted from the car industry similar to IHF method only a bit more difficult for an amplifier and more representative of real musical content.
Keep in mind most review publications don't do continuous power measurements and they usually publish power measurements into clipping at 1% THD + N. Our measurements are very conservative as we use a dedicated 20A line with no Variac to regulate line voltage. We constantly monitor the line to ensure it never drops more than 2Vrms from nominal which in our case was 120Vrms.
For more info on amplifier measurements, see: The All Channels Driven (ACD) Test
1kHz ACD Power Test
Yamaha RX-A1010 Dynamic Power Test (1kHz) 2CH Driven, 4-ohms
|# of CH||Test Type||Power||Load||THD + N|
|7||1kHz Psweep||70 wpc||8-ohms||1%|
|7||Dynamic PWR||125 wpc||8-ohms||1|
Yamaha RX-A1010 Power Measurement Table
The Yamaha RX-A1010 handedly exceeded its 110wpc power rating continuously with two channels driven and put out a commendable 155wpc both channels driven into 4-ohms; and that’s a full power bandwidth measurement (20Hz to 20kHz at 0.1% THD + N). You can see the protection circuit kick on during our ACD tests, purposely limiting power to 70wpc for all seven channels driven. This means the RX-A1010 was dissipating nearly 980 watts from the wall outlet to deliver this much power to all seven channels. Not bad for a sub $1k receiver with a 600VA power supply.
In short time, there is no doubt in my mind forum trolls seeing the ACD power numbers for this receiver will pop up on our site or AVS Forum bashing Yamaha, not realizing the design purpose of power limiting a multi channel amplifier in a compact chassis, or the reality that real world program material will never trip this limiter circuitry. Thus we conducted dynamic burst power measurements simulating real world program content.
The RX-A1010 delivered impressive dynamic power results under all loading conditions. Into 8-ohms, 1 channel driven, the RX-A1010 produced 170wpc or about 1.9dB of headroom over its 110wpc rating. Interestingly the RX-A1010 delivered similar results into 1 or 2 channels driven into 4-ohm loads producing in excess of 260wpc. Yamaha specs the RX-A1010 as being able to deliver 210wpc dynamically into a 4-ohm load. I would say that is rather conservative given my measurement results using the CEA 2006 burst test.
Suggestions for Improvements
As good as the Yamaha RX-A1010, I do have some nits to pick with it. Though it’s a minor issue that is likely not audible in most cases, I was a bit perplexed by the bass management issue I found. I have always observed textbook performance from Yamaha receivers here, so I am hoping they can release a future firmware update to address this. While I like the idea of dual subwoofer outputs, it’s really nothing more than a feature bullet point on a spec sheet unless the outputs offer independent level control and delay settings. Yamaha isn’t the only brand guilty of doing this at this price point, however. I would have liked Yamaha to give the ability to run presence and back channels simultaneously with external amplification, but that feature is reserved for their higher end units for now. Video processing was pretty limited on this receiver compared to offerings of Yamaha’s competitors, but the unit did just fine switching and upconverting legacy signals. The remote control was a bit limited in function compared to other units they’ve offered in the past, but I would likely find this fault with any of today’s A/V receivers in this price range. The ability to present volume level during power up is a feature I missed most perhaps and hope Yamaha considers offering this standard on all of their AVENTAGE receiver models. I miss their heritage orange front panel LCD display. I will continue to ding Yamaha on that in future reviews till they bring it back.
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Recent Forum Posts:
This review is the reason why I keep coming back to audioholics for reviews over other websites. The detail in the power measurements is rare.
Next time could you include the score on the video processing? I noticed you gave it a score of 3 out of 5, might as well include the test scores since hoj went through all that work
Also what's the final word of the receivers bi amping ability Gene….you mentioned it could bi amp the unused channels but how effective is it at that
Ken C., post: 904928
Has anyone had trouble using Pandora and Rhapsody on the Aventage line? I have tried three receivers, two models of the Aventage line and they all stutter at the beginning of every track and sometimes in the middle of a track. Net Radio buffers and works fine. Yamaha has told me there is a defect in the first unit and that they have not experienced this in their personal receivers. I have still another on order, a RX-A120, to see if it is any better. I have upgraded the firmware on one of the machines to no satisfaction.
I have the A2010, and use Pandora a lot. No issues, other than the Pandaora ‘Are you still Listening?’ message if you leave it on all night.