Audio power amplifier circuit diagrams / circuit schematics. Note that all these links are external and we cannot provide support on the circuits or offer any guarantees to their accuracy. Triple biquad wifi antenna. Some circuits would be illegal to operate in most countries and others are dangerous to construct and should not be attempted by the inexperienced.
For a few years, I’ve given Yamaha a bad rap. After a pair of that didn’t live up to what I expected, I decided that I wasn’t going to review much from them. That all changed when I reviewed their and found it to be wonderful.
Then they impressed me with amazing virtual surround from a. And finally some wonderful sound from. Yamaha is still making very good products, I just wasn’t reviewing the right ones. After all these good experiences, I wanted to take a look at their as it features an ESS Sabre DAC, full 7.1 preouts for use with external amps, along with integrated WiFi and Spotify Connect. The is quite a receiver for $1,100.
The ESS Sabre DAC provides good performance while the amplifier section proves to be powerful for 8 ohm and 4 ohm loads. The sound quality, especially after using the YPAO multi-point calibration, is impressive while the network features make it easy to listen to my music. The past two years of products have made me change my mind about Yamaha, and the RX-A1040 is one of the best receivers I have seen recently.
A Solid Foundation. Specs Manufacturer: Yamaha Model: RX-A1040 Inputs: 8x HDMI Inputs (1 Front), 3x Optical, 3x Coaxial, 10x Analog Audio, 3x Component, 5x Composite, MM Phono, USB, 7.1 Multichannel, Ethernet, WiFi, Outputs: 2x HDMI, 1x Analog Audio, 1x Component, 2x Composite, 7.1 Preout Amplifier Section: 7x 110 Watts RoomEQ: Yes Size: 17-1/8” x 7-1/8” x 17” Weight: 32.8 lbs. Review Date: September 1, 2014 Price: [amazon_link asins='B00KFF4M3Q' template='PriceLink' store='refehomethea-20' marketplace='US' link_id='39af7bf0-db7f-11e6-a33f-f745352fa258'] Two features are going to affect the sound quality of a receiver more than anything else: The quality of the DAC and the amplifier. If the DAC is poor, it will be unable to resolve the details in high-resolution audio while also reducing jitter in digital sources. If the amplifier is weak, no matter how good of speakers you have the receiver will not be able to play them to their full potential. No matter how good the other features on the receiver are, if it falls short here it is impossible to make up for it. The foundation of the Yamaha RX-A1040 is the ESS Sabre 9006 DAC.
The Sabre is well regarded for its low, high, and ability to reduce jitter from a digital source. It doesn’t offer the performance of the ESS 9016, found in the and the CX-A5000 I reviewed last year. It is a step up from the DACs found in most $1,000 receivers. Since almost all sources people use now are digital, the DAC is key to getting the best audio quality from those. From 24/96 HD downloads to Spotify streams, a better DAC will make everything sound better. As you can see on the bench tests on Page 2, the Sabre DAC has good performance for the price but also a couple issues.
Compared to the, which I picked as the for most people at The Wirecutter, the RX-A1040 offers better SNR and lower THD+N. This provides greater clarity from all channels regardless of speaker. When I listen to well recorded, detailed music like the SACD of it is something I pick up on instantly. The amplifier section of the Yamaha RX-A1040 also provides plenty of power for even demanding speaker loads.
Into a stereo load, you get 132 watts per channel for 8 ohms with only 0.1% THD+N, or 20% higher than it is rated for. Into 4 ohms you get 188 watts per channel.