While the Marantz SR5014, SR5013, and SR6013 are full-profile receivers (with circular display), the Marantz NR1710 and its predecessor: NR1609 have slim profile (and rectangular display), meaning their height is approximately two-thirds of the SR5014, SR5013, and SR6013. The more compact form-factor comes at the expense of reduction in the rated power output, though. There are 7 power amplifier channels on the NR1609, NR1710, SR5014, and SR5013 but the power output is only 50 Watts per channel on the NR1710 and NR1609 (2-channel driven into 8-ohm loads, 20Hz-20kHz, 0.08% THD) vs 100 Watts per channel on the SR5014 and SR5013 (2-channel driven into 8-ohm loads, 20Hz-20kHz, 0.08% THD). The SR6013, on the other hand, has 9 poweramp channels and slightly higher power output of 110 Watts per channel (2-channel driven into 8-ohm loads, 20Hz-20kHz, 0.08% THD). Despite the differences in the height and output power, it should be said that both the NR- (NR1609, NR1710) and SR- (SR5014, SR5013, SR6013) range receivers utilize discrete power devices (as opposed to integrated circuitry) in their power amp section which allows them to drive speakers with 4 - 16 ohms of impedance. The NR1609 and NR1710 omit the current feedback amplifier circuit which can be found in either SR5014, SR5013, or SR6013's preamp section, meaning the latter three Marantz receivers have an advantage when it comes to amplifying hi-def audio signals (from a blu-ray disc player, for example). The HDAM (Hyper Dynamic Amplifier Module) circuit boards are also missing from the NR1609 and NR1710 but are utilized on the SR5014, SR5013, and SR6013. The S/N ratio in Direct Mode is 98 dB (IHF-A weighted) on the NR1609 and NR1710 vs 100 dB (IHF-A weighted) on the SR5014, SR5013, and SR6013.
While all Marantz receivers in this comparison have dual subwoofer outputs, it should be said that only the SR6013 provides discrete subwoofer functionality whereas the remaining receivers output the same signal from the two subwoofer outputs. In addition to being able to adjust the level and delay for each subwoofer independently, the Marantz SR6013 is equipped with the Sub EQ HT, which is one of the tools from the full Audyssey Platinum acoustic room correction suite, and it's aimed at compensating for any delay and level difference between the two subwoofers before the speakers are equalized for the particular time and frequency characteristics of your listening area (based on measurements form the test signals during the setup process). The Audyssey LFC (Low Frequency Containment) is another feature found on the SR6013 but not on the rest of the Marantz receivers (which also omit the Sub EQ HT). As the name suggests, it provides you with a way to adjust the amount of bass that's being conveyed to neighboring rooms, and it's useful if you wish not to disturb their occupants. Considering the Marantz SR5013, SR5014, NR1710, and NR1609 use Audyssey MultEQ XT whereas the SR6013 utilizes the Audyssey MultEQ XT32, the resolution of the generated digital filters is considerably higher on the SR6013 vs SR5013, SR5014, NR1710, or NR1609. As a result, the SR6013 has an advantage in terms of providing more precise optimization to each channel. That being said, both the MultEQ XT32 and MultEQ XT support up to 8 measurement locations, thus their mapping capability of the listening area is identical. Furthermore, some of the DSP algorithms, such as Dynamic EQ and Dynamic Volume can be fount on all 5 Marantz receivers in this comparison.
The Marantz SR5013, SR5014, NR1710, and NR1609 all have 7.1 processing channels but the number of pre-outs differs. For example, the SR5013 and SR5014 have 7.2-channel pre-outs while the NR1710 and NR1609 have only 2.2-channel pre-outs. There are dedicated 2-channel pre-outs for Zone2 on all Marantz receivers in this comparison, though. The Marantz SR6013, on the other hand, has 11.2 channel pre-outs as well as 11.2 processing channels. There are also 11 speaker terminals on the SR6013 vs 7 speaker binding posts on the SR5013, SR5014, NR1710, and NR1609. As result of that (and their 7 poweramps), you can connect and drive speakers for only up to 5.1.2-channel Dolby Atmos speaker setup on the Marantz SR5013, SR5014, NR1710, and NR1609 whereas the SR6013 natively supports up to 5.1.4 or 7.1.2-channel layouts (and up to 7.1.4-channel via external stereo amplifier). According to Marantz, the SR5014 and NR1710 will receive a firmware update that will enable Dolby Atmos Height Virtualization Technology which can be used in case you haven't connected overhead speakers for the purpose of emulating height channels from a 7.1, 5.1, or even 2.1-channel speaker layout, for example. A similar technology from DTS, called DTS Virtual:X, is present on all 5 Marantz receivers (and so is the DTS:X in case you do have height speakers).
While there is no difference in the number of HDMI inputs since there are 7 rear and 1 front on either SR6013, SR5014, SR5013, NR1710, or NR1609, the number of HDMI outputs is not the same. The SR6013 has 3 HDMI outputs (2 for the Main room and 1 for Zone2), the SR5013 and SR5014 have 2 and the NR1710 and NR1609 have only 1 HDMI output. The NR1710 and SR5014 support eARC (enhanced Audio Return Channel) out of the box on one HDMI output, whereas the SR6013 needs a firmware update in order to pass-through lossless Dolby Atmos streams from your TV's streaming apps, for example. The NR1710 and SR5014 support ALLM (Auto Low Latency Mode), and in the event of your TV and gaming console also supporting that feature, the TV can automatically switch to game mode upon detecting you've launched a game on your console. The HDMI ports on the Marantz SR6013, SR5013, and NR1609 are HDCP 2.2 compatible whereas those on the SR5014 and NR1710: with HDCP 2.3.
The Marantz SR6013, NR1710, and NR1609 have 3 composite video inputs and 1 output on the back, whereas the SR5013 and SR5014 have 2 inputs and 1 output (on the back). The rear analog audio inputs are 5 on the SR6013, 4 on the SR5013 and SR5014, and 3 on the NR1710 and NR1609. Additionally, there is a phono input on all 5 Marantz receivers. Only the Marantz SR6013 has 7.1-channel inputs. In terms of digital inputs, the SR5013, SR5014, and SR6013 have 2 optical and 2 coaxial whereas the NR1710 and NR1609 have only a single optical and single coaxial input. The only connections that can be found on the NR1710 and NR1609's front panel are a headphones jack, a setup mic jack, a USB port, and an HDMI input. The SR6013, SR5014, and SR5013 all have the aforementioned connections, as well as a composite video input. In case of the SR6013, all front connectors and buttons are placed behind a flap door (except for the volume and input select knobs). The front I/0 and buttons are readily accessible on the SR5013, SR5014, NR1710, and NR1609, except for the setup mic jack and composite video input on the SR5013 and SR5014 which are behind a small cover.
Check availability and pricing on Amazon.com for the Marantz NR1710, SR5014, SR5013 or SR6013 (affiliate links; As an Amazon Associate I earn from qualifying purchases.)
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