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The design of the HDA range draws upon all of Arcam’s experience as one of the UK’s most respected audio companies, to produce Arcam’s best performing range of audio products yet – using the best quality components and engineering practices, the HDA range is designed and built to give you years of listening enjoyment.
- Class G amplification for impeccable sound and efficiency
- 90W of power per channel
- 5 analogue inputs including phono
- 3 digital inputs
- 32-bit DAC,Sabre ESS9038K2M
- Full I/P control
- Total harmonic distortion + noise = 0.003%
SA20
There are two frequent problems with hi-fi amplifiers. Class A, the traditional audiophile’s choice, uses a single power supply constantly running at full capacity, even when there’s no signal coming through. Great for reproducing those subtle details at low levels however struggles to provide extreme power when needed.
Class A/B, the most common amp class, switches between the two internal amplifiers, one for each half of the waveform. Far more efficient but often a recipe for crossover distortion, since those low-level details we crave can get lost within any mis-match between the two switching over.
Class G is essentially a hybrid amplifier, utilising Class A specifically for low-level signals, but when required switching in an additional power supply to power those larger sections of the waveform. |
High sound quality Network HiFi Receiver with support for DSD 5.6MHz reproduction. Compatible with MusicCast and packed with network functions. Unlimited enjoyment of many different sound sources, including hi-res sources, smartphones and streaming services.
- MusicCast expands entertainment possibilities
- Streaming services offer a huge range of listening choices
- Enjoy the entire spectrum of all your favorite modern music sources
- 5.6MHz DSD Native and AIFF 192kHz/24bit reproduction with high performance 24-bit D/A converter
- MusicCast CONTROLLER lets you operate from your smartphone or tablet
- Wireless music streaming via Bluetooth® or AirPlay
- Bluetooth Output for convenient music streaming
- USB digital connection for iPod, iPhone, and USB devices
- Pure Direct Mode for greater sound purity
- Digital audio input for TV or Blu-ray player
- Eco Mode and Auto Power Standby
MusicCast
MusicCast is a new revolution in network audio, use all your MusicCast products together or separately, itʼs completely up to you. Control it, all from one app, designed to be intuitive, quick and simple to use. Use a soundbar, a wireless speaker, an AV Receiver, HiFi audio whichever suits you best, mix and match then expand your MusicCast system as time goes on. All new from Yamaha, the MusicCast system brings everything to everywhere for everyone.
MusicCast Expands Entertainment Possibilities
MusicCast employs a high performance wireless network to deliver music and audio enjoyment. It can stream digital music content from your smartphone, PC or NAS to other MusicCast devices in your home. It can also share the music from external devices such as a CD player or TV connected to the R-N602. Audio content from Bluetooth-connected smartphones or tablets can also be streamed to MusicCast devices in multiple rooms.
Enjoy the Entire Spectrum of All Your Favourite Music Sources
The R-N602 is a receiver and network audio player in a single unit. You can use it to easily play audio sources downloaded from the Internet and stored on a PC or NAS system. Or, enjoy streaming music services and internet radio (with vTuner). Moreover, Yamahaʼs original MusicCast App allows you to enjoy your favourite tunes on a smartphone or tablet device via wireless connection.
Streaming Services Offer a Huge Range of Listening Choices
Support for the music streaming services Spotify, Pandora, Juke, Napster, Rhapsody and Sirius XM means youʼll enjoy a wide variety of music content. Furthermore, support for the vTuner radio station database enables sampling of Internet radio broadcasts from around the world.
*Music service availability varies by region.
Wireless Music Streaming via Bluetooth or AirPlay
Enjoy music from your smartphone or tablet wirelessly using a Bluetooth connection. You can also use the convenient AirPlay function for wireless music streaming from iPhone or iPads. In addition, a Network Standby function providest he convenience of having the R-N602 turn on and off automatically.
Bluetooth Output for Convenient Music Streaming
The R-N602 is equipped with the latest Bluetooth technology, making wireless operation more convenient than ever. You can stream music from the R-N602 to Bluetooth headphones for private listening or to Bluetooth speakers.
Easy setup with your smartphone or tablet
Use your smartphone or tablet together with the MusicCast CONTROLLER app to operate the speaker and change settings quickly and easily. The same Controller app functions as a remote control for all your MusicCast-compatible devices too.
Other Notable Features
• Continuously Variable Loudness Control
• Terminal for a Subwoofer
• Phono MM terminal for vinyl playback
• Screw-type speaker terminals
• 40 station FM/AM preset tuning
• Speaker selector and speaker terminals for two systems
Receiver / Integrated Amplifier
Network section |
DLNA |
Version 1.5 |
File Format |
MP3, WMA, MPEG4 AAC, WAV, FLAC, AIFF, ALAC, DSD |
Wi-Fi |
Yes (with Wireless Direct) |
AirPlay |
Yes |
Bluetooth |
Yes (SBC/AAC) |
Minimum RMS Output Power |
80W + 80W (8 ohms, 40 Hz-20 kHz, 0.04% THD) |
Maximum Power (4 ohms, 1kHz, 0.7% THD, for Europe) |
105 W + 105 W |
Maximum Power(8 ohms, 1 kHz, 10% THD) |
115 W + 115 W |
High Dynamic Power/Channel (8/6/4/2 ohms) |
105 / 125 / 150 / 178 W |
Frequency Response |
0 ± 0.5 dB / 0 ± 1.0 dB |
Total Harmonic Distortion (CD to Sp Out, 20 Hz-20 kHz) |
0.015% (40 W / 8 ohms) |
Signal-to-Noise Ratio (CD) |
100 dB (Pure Direct on, 200 mV) |
Audio In / Out |
9 / 2 |
USB Input |
Yes |
Subwoofer Out |
Yes |
FM 50dB Quieting Sensitivity (IHF, 1 kHz, 100% Mod., Mono) |
3 µV (20.8 dBf) |
FM Signal-to-Noise Ratio (Mono/Stereo) |
65 dB / 64 dB |
ToP-ART |
Yes |
Standby Power Consumption |
0.1 W |
Dimensions (W x H x D) |
435 x 151 x 392 mm; 17-1/8” x 6” x 15-7/16” |
Weight |
9.8 kg; 21.6 lbs. |
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The 851W has class XD amplification at 200W into 8 Ohms in stereo mode or 500W RMS per amp in mono bridged mode, separate toroidal transformers for the power amp and input/other circuitry, and terrapin impedance buffering modules. All in all it\'s the best sounding amplifier we have ever made.
Our proprietary Class XD amplification Separate toroidal transformers for power amp and input/other circuitry Our bespoke Terrapin impedance buffering modules – separating amplifier and signal impedance 200W into 8 Ohms stereo mode or 500W RMS per amp mono bridged mode CAP5 protection from DC spikes, overheating and clipping All metal chassis with premium components Remote Control – Compatible with the entire 851 range
Power output – stereo/mono 200W per channel into 8 Ohms 350W per channel into 4 Ohms Power output – bridged mono 500W 8 Ohms 800W 4 Ohms THD (unweighted) < 0.001% 1 kHz < 0.005% 20 Hz - 20 kHz Frequency response 5Hz – 80kHz S/N ratio (ref 1W / 8 Ohn) >90dB (unweighted) Sensitivity – stereo or mono 1.5V rms unbalanced 1.5 + 1.5V rms balanced Sensitivity – bridged mono 0.775V rms unbalanced 0.775V + 0.775V rms balanced Input impedances Balanced input 38 kOhm Unbalanced input 68 kOhm Power amp damping factor > 110 at 1 kHz Max. power consumption 2400W Standby power consumption Standby |
First Impressions
If youʼre impressed by elegantly restrained industrial design, the MM7025 is guaranteed to make a lasting – and very positive – impression. The subtly curved aluminum/glass resin front panel adds a sophisticated touch that complements any décor. The central porthole display reflects iconic Marantz designs of the past while it brings you an "at a glace” view of the amplifierʼs operating status.
Front Panel | Aluminum/Glass-reinforced resin |
Power Requirement | AC 120V 60Hz |
Power Consumption | 330W (Standby: 0.2W) |
Dimensions W x H x D (Inchs) | 17-3/8 x 4-15/16 x 13-7/8 |
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Choosing the DAC
Both our CXA60 and CXA80 amplifiers employ the same Wolfson WM8740 DAC, and thereʼs a very good reason for that: it sounds superb! There are more recent Wolfson DACs in circulation, however none sound quite as great as the WM8740 in our view. Which is why, time and again, we choose them.
Two-into-one transformer
The CXA80 utilises two separate windings on the oversize toroidal transformer. In effect, this is like having two toroidal transformers wound onto one chassis, providing separate windings for each amplification module. If you get a huge transient in the right channel, it wonʼt unsettle whatʼs going on in the left. The current is being drawn from a different path, rather than a common path, so the output is stable and remains unflustered, whether your liking is for Little Richard or Lamb of God.
Dynamic Thermal Tracking transistors
The transistors used by the CXA80 are not your usual common or garden offerings. They come with an integrated Dynamic Thermal Tracking System. So what does this mean? Normally a Power Output transistor utilises a thermo-coupler attached directly to the heat sink of the amp; this informs the system so that it can rebias when key temperatures are reached. However, using Integrated Dynamic Thermal tracking provides a far more accurate reading of the real temperature of a transistor, and relays it faster too because itʼs not a delayed heating effect. This enables us to bias the amplifier more accurately and in almost real time. Which means your CXA80 is always running at optimum performance.
Musical Subwoofer output
If you want to use a subwoofer as part of your speaker complement, the CXA80 doesnʼt penalise you for it. Because we want to ensure thereʼs no unnecessary high frequency noise affecting the subwoofer, weʼve put the output filter at 3KHz. This is high enough to prevent any phase shift associated with the low pass filter affecting what happens below 200Hz. The result is a phase linear subwoofer output signal which is clean and musical.
Reinventing the signal path
The CX range represents a step change in the way our engineers have approached signal path design, and the result is one of our most musical and entertaining amplifiers yet.
Previously, we went to almost surgical lengths to minimise distortion in order to get the best results. This invariably meant 46 components sat in the signal path. For the CX Series, we wanted to dramatically reduce that component count. The CXA80 now has only 24 components in the signal path. The big difference is that there are now 500 support components as well. Their job is to guarantee those 24 key components are absolutely optimal all the time, regardless of mains fluctuations and other influences.
This has made a big difference when it comes to tuning. Previously, tweaking one of the 46 components only made a small difference and it was sometimes difficult to quantify exactly what difference any change made. With the CX series, those 24 components have now actually become quite critical. Changing just one affects the character of the amplifier.We can hear very clearly what each of those components is doing.
This revision has fundamentally changed the character of the amplifier. Listening to a CX series amplifier is fun, engaging and exciting.
High resolution asynchronous USB
In order to offer 24-bit 192kHz resolution via asynchronous USB we use a specialist XMOS device dedicated to the USB input. Weʼve also written a custom driver to allow PC users to access the higher sample rates available in USB Audio 2 mode. This bespoke code allows us to stream audio files at the highest possible resolution.
Bespoke Bluetooth
If you want to use your CXA80 with a Bluetooth source, we offer an optional BT100 audio receiver. To ensure that this does not interfere with other components in the amplifier, itʼs isolated internally on the digital input board. From the ground up, this is an audiophile Bluetooth device. All the coding for the BT100, including the aptX implementation, is done in-house. We even include an extension cable which enables you get the best Bluetooth range.
Embracing classic design
Sometimes thereʼs a good reason to keep things uncomplicated. The CXA80 features a high-quality damped metal chassis, designed to ensure that nothing rattles or interferes with the electronics. Weʼve also kept volume control simple. The CXA80 uses a logarithmic ALPS pot. And when it comes to switching inputs, the CXA80 uses relay switching with silver plated contacts. This classic approach is still the best way to move signals around, rather than with transistors or electronic switches.
- Power output:80W RMS into 8 Ohms, 120W RMS into 4 Ohms
- DAC:Wolfson WM8740
- Frequency Response:
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Audio Connectivity Features | Analog Audio Input (Rear) | 5 | Phono Input | 1 | FM Tuner Features | Frequency Range MHz | 87.5 MHz | Usable Sensitivity (IHF) | 1.3 μV/13.2 dBf | Signal-to-Noise Ratio (Mono/Stereo) | 70 dB/68 dB | Distortion (Mono/Stereo) | 0.2%/0.3% | Stereo Separation @ 1kHz | 40 dB | Selectivity ±400kHz | 70 dB | AM Tuner Specifications | Frequency Range kHz | 520 kHz | Signal-to-Noise Ratio | 38 dB | Usable Sensitivity (Loop) | 500 μV | Selectivity | (±10 kHz): 30 dB | Distortion | (1 kHz, 50% mod): 1.0% | General Specifications | Power Requirement | 120V AC, 60Hz (USA); 220V – 240V AC, 50Hz/60Hz (EU) | Power Consumption (full power/idle) | 310W maximum, | Dimensions (H x W x D – Metric/English) | 121 mm x 440 mm x 300 mm | |
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