Audio Video Receiver (2013-14)
Tuning range: FM, MW
Power output: 90 watts per channel into 8Ω (stereo)
Surround output: 90W (front), 90W (center), 90W (rear)
Frequency response: 10Hz to 100kHz
Total harmonic distortion: 0.09%
Damping factor: 100
Input sensitivity: 200mV (line)
Signal to noise ratio: 100dB (line)
Channel separation: 60dB (line)
Output: 200mV (line), 1V (Pre out)
Speaker load impedance: 6Ω (minimum)
Digital inputs: coaxial, optical
Video Connections: HDMI, component, composite
Dimensions: 435 x 171 x 364mm
Finish: black, gold, titanium
Accessories: remote control
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Reviewed Nov 01st, 2014 by rjt1969
lacks a little bass and mid range punch as set up from the factory, if you have speakers that are also a little bright or favour the mid to high tones, then they my not match up well, with some fine tuning of the equaliser for low to mid tones and a decent set of speakers with good bass response this unit sounds excellent, if you don't wont to much around and want good base sounds straight out of the box, buy a 677 or go with a equivalent Sony receiver, That said if your willing to put some time in fine tuning a package and willing to buy quality Yamaha speakers then the result will be amazing and far better than the sony Equivalent by many points,IT (yamaha 675) just wont sound great from the box with cheap low cost speaker, as i found out when i replaced my older sony amp, it sounded great on my cheap speakers, the new yamaha sounded a little tinny and lacked bass, attenuating the tweeter and mid driver by 8db at the speaker solved the problem and allowed the adjustments in the equaliser to work well and picked up the bass. i excepted some power loss, yet still could drive the amp to extreemly loud levels, later buying a set of 7.1 yamaha speakers i found they suited the rx675 and and did not require work to the speakers for a good sound, putting the old Sony to the yamaha speakers and i find the base response is a little excessive, proving to me yamaha matched there speakers to there receivers, even a set of JBL balboa's sound a little loud in the midrange for my liking and to work with my mates yamaha rx 375 required at least 4db attenuation to the mid driver, on the 675 it need 8db mid driver and at least 3db on the tweeter, i have read yamaha has corrected this problem with the rx-v677 and gave it a little more bass punch straight out of the box. i hope this helps some one, it's a great unit once you have it set up, but my first few weeks i was not totally happy, now that it's sorted and running 2 12 inch subs with 300 watts a sub i am very happy with the sound quality and i never need more than 200 watts on the subs to get amazing home theatre sound. if you don't mind fiddling get the Yamaha every time. if you want amazing thumping bass, don't buy a mains powered sub unless it has a 12 driver and at least 300 watts rms, i run a 12volt 380 watt rms per channel, 2 channel amp and 2 12 inch enclosed Sub by poineer, they make my 200 watt yamaha mains powered sub sound very weak.