Question 1

Serial #/production date? w/ hardware fix for hdmi 2.1 bug implemented (5/21), seller must disclose device production date and/serial #.

Accepted Answer

From your question, it seems that you want proof of which model AVR you are getting--one that has the new bug-free motherboard built in, or one that requires the HDMI fix.  Only the seller will know which device they are selling.  You can ask them to disclose which model they offer.  On Amazon, the seller may not have ready access to their stock to check Serial numbers and production dates, as Fullfilled By Amazon is very complex; however, you can purchase from Amazon Prime and return easily if you are not happy.  Buying from an authorized reseller may get you any model (before or after fix), but the small reseller has direct access to their stock and can verify the production date.  Email any potential seller or put your calls on speakerphone and record for proof of what was discussed, in any case.  The pandemic has made the world harder for audio/video electronic sales.  I'm amazed many are still in business.

According to Forbes, all Denon and Marantz flagship receivers manufactured after May 2021 are officially glitch-free. This is because the latest units are fitted with a new HDMI 2.1 chip that don’t suffer the same flaws.  The bug was originally caused by a faulty HDMI 2.1 chip that prevented some AVRs supporting 4K gaming at 120Hz via the Xbox Series X.

But how do you ensure you get one of the newer, glitch-free home cinema amplifiers?  Sound United  has tweaked the serial number of the new models: numbers that end with serial numbers from 70001 onwards should be bug-free, as they will have been manufactured after May 2021 and boast the upgraded HDMI 2.1 chip.

Basically what you want to be looking for are models with serial numbers that end with serial numbers from 70001 (inclusive) upwards.

Question 2

Will this system work with Sonos?

Accepted Answer

Thanks for your question. The Marantz SR6015 has no Sonos connectivity. However, the 6015 has HEOS built in. HEOS was developed by Denon and Marantz to offer the same network connectivity with HEOS enabled speakers throughout your home on your home wifi network, controllable with the free HEOS app on your smart device.
World Wide Stereo is 42 years old and a proud authorized Marantz and HEOS dealer.

Question 3

Is there a direct in/ ht bypass or some other way to bypass the internal preamp? would like to use a preamp with tubes.

Accepted Answer

I have not found or heard of a way to defeat the internal Marantz Pre Amp; this is the one thing they take particular pride in.   The motto “BECAUSE MUSIC MATTERS” is based on the specific Marantz processing: Marantz proprietary HDAM circuit boards, Current Feedback circuitry, 32-bit D/A converters, and Hybrid PLL Clock Jitter Reducer for more detailed, dynamic sound.  And, to me, for an AVR, their pre amp processing is “best in class.”

You have to consider a different component path to build your musical system.

Question 4

Use as a processor only? I am wanting to use this using the pre-outs with amps powering all speakers. My sub's are passive, amps required. Thanks

Accepted Answer

In theory, yes. I'm not sure if there are pre-outs for the height channels and I'm not at home to look at the back.

Color	Black
Item Weight	12.8 Kilograms
Item Dimensions D x W x H	15.7"D x 17.3"W x 6.3"H
Wattage	110 watts
Number of Channels	9
Output Wattage	110 Watts
Video Encoding	H.264, H.265 (HEVC), VP9
Output Power	110 Watts
Audio Output Type	Speakers
Format	WAV
Wireless Technology	Airplay, Bluetooth, Wi-Fi
Control Method	Remote
Total Number of HDMI Ports	7
Connector Type	HDMI
Audio Encoding	DTS
Audio Output Mode	Surround
Number of Audio Channels	9.2
Connectivity Technology	Bluetooth, HDMI
Controller Type	Mechanical knob
Additional Features	dolby trueHD, dts-HD
Compatible Devices	Television, Speaker

Marantz SR6015 9.2 Channel 8K AV Receiver with 3D Audio, HEOS Built-in and Voice Control

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