Audiolab 7000A Integrated Amplifier with 7000N PLAY Streamer
Audiolab 7000A
Since its launch in October 2018, Audiolab’s 6000A integrated amp has
been a consistent best-seller, lauded by critics and loved by its
owners for its useful range of facilities and adroitly balanced sound – a
clear class leader at £649. Recently, the 6000A was joined by a new
flagship integrated model, the 9000A, taking the 6000A’s established
blueprint and elevating it across every parameter to deliver the epitome
of ‘affordable high-end audio’ – uncompromising design, build and
performance that rivals amplifiers costing twice its £1999 price tag.
As
winter turns to spring, the 6000A and 9000A are joined by a third
integrated stereo amplifier. With an RRP of £1099, the new 7000A nestles
between its two siblings in terms of both price and performance, whilst
adding a few tricks of its own. It builds upon the same design
fundamentals as the 6000A, recognising that while an amplifier is still
the beating heart of any high-performance audio system, just as it has
been for decades, a truly versatile integrated amp now needs to cover
many bases – digital and analogue sources, wireless connectivity for
portable devices, a phono stage for playing vinyl, and amplification for
headphones as well as speakers. But while the ethos remains the same,
every aspect of the 7000A’s circuitry, both digital and analogue, has
been enhanced to deliver updated facilities and upgraded performance.
A fine display
At first glance, the 7000A looks similar to its entry-level sibling but
there are key aesthetic differences. Some are subtle, such as the
sharper edges to the rotary controls and changes to the vent
perforations on the top surface. The new amp also a little heftier, at
8.4kg compared to 7.8kg. The most obvious aesthetic change is the
central display – while this remains stadium-shaped, like the 6000A’s
display, the window has been enlarged to 64x48mm.
The reason for
the 7000A’s larger display is clear as soon as the amp is powered up.
The 6000A’s monochrome text display has been replaced by a colourful
GUI, like the one found on the flagship 9000A (albeit the IPS LCD screen
is smaller – 2.8in as opposed to 4.3in). This shows a variety of
information in a more visually appealing way than other integrated amps –
volume level, input selection, format data and more. It gives access to
the 7000A’s impressive menu system, which includes such options as
digital filter selection, upsampling, input sensitivity adjustment,
balance control, automatic standby switching, and volume curtailment
when the amp is powered up. It can even be set to display a VU meter in
‘analogue’ or ‘digital’ form, showing real-time signal levels for the
left and right channels – a satisfying graphical representation of the
music as it plays. Animations can be turned off and brightness adjusted,
and the display can be set to activate only when a function is accessed
and switch off after a defined period, as the user prefers.
The
attractive versatility of the 7000A’s GUI and the useful array of
options it presents are a clear upgrade on the 6000A and an unusual
asset for a high-performance integrated amp at this price point.
Versatile connectivity
The
7000A incorporates state-of-the-art digital-to-analogue signal
conversion, enabling digital sources to connect directly without an
external DAC. Like the 6000A, there are four S/PDIF inputs – two coaxial
and two optical – but the 7000A adds a USB Type B input for PCs, Macs,
smartphones, tablets and digital storage devices. It also includes an
HDMI ARC input for convenient AV system integration – the 7000A is the
only Audiolab amplifier to include this facility. Bluetooth reception is
included too, with support for multiple codecs including aptX HD, and
Bluetooth 5 compliance for optimum range and speed. For analogue sources
there are three line-level RCA inputs, plus one for a turntable.
Audiolab has tweaked the 7000A’s MM phono stage to improve performance
compared to the 6000A, with precise RIAA equalisation and input
filtering to ensure vinyl is treated with as much care as digital
sources.
Digital circuitry
Ever since the
much-admired M-DAC launched more than a decade ago, Audiolab has been
famed for the performance of its DAC circuitry. The M-DAC was one of the
first consumer audio products in the world to incorporate ESS
Technology’s groundbreaking Sabre32 Reference DAC chips, sharing its use
of the ES9018 chip family with other renowned Audiolab components
including the 6000A. For the 7000A, Audiolab has switched up to a
new-generation 32-bit Sabre chip – the ES9038Q2M. This is accompanied by
proprietary circuitry to make the most of ESS Technology’s HyperStream
II architecture and Time Domain Jitter Eliminator for ultra-low noise
and high dynamic range.
No company knows more about making the
most of Sabre DAC technology than Audiolab, having worked with it for
years through several product generations. Although always technically
excellent, these DAC chips are also challenging to implement to maximum
effect and must be integrated into a product’s circuit design with care
to extract their full sonic potential. The post-DAC active filter is a
critical element; Audiolab developed a new Class A circuit for its
flagship 9000A integrated amp that’s perfectly tailored to make the most
of the ES9038 chip family and this same circuit is used in the 7000A.
The
7000A’s hi-res audio support is state-of-the-art, handling PCM to
32-bit/768kHz and DSD to 22.5MHz (DSD512) via USB. The 6000A, in
comparison, is limited to 24-bit/192kHz PCM over S/PDIF.
The
7000A also delivers full decoding of MQA, the hi-res streaming
technology. This means that the complete ‘three unfold’ decoding process
is performed internally, as opposed to just the final unfold in the
manner of an MQA renderer, making the 9000A an excellent amplifier for
subscribers to Tidal’s ‘HiFi Plus’ tier where Tidal Masters (MQA)
content can be found. The 7000A is officially ‘Roon Tested’ too,
ensuring it works seamlessly in a Roon audio environment.
Users
can opt to upsample digital audio signals to 352.8kHz or 383kHz, and
five DAC reconstruction filter settings allow the listener to adjust the
sound to suit the source material – particularly useful given the
variable quality of digital formats and streaming platforms. No matter
how it is connected, via USB, S/PDIF or Bluetooth, every digital source
benefits from the exceptional quality of this DAC – you will not find a
finer DAC stage in any integrated amplifier anywhere close to the
7000A’s retail price.
Analogue circuitry
The
6000A’s Class AB amp circuitry has been widely praised for its
impressively balanced performance across all critical parameters, at an
affordable price. Jan Ertner, Audiolab’s lead electronics designer, took
the circuit he designed for the 6000A and considered where the
additional budget afforded by the 7000A’s higher price point could best
be invested to achieve optimal sonic dividends. His resulting design
improves key areas to significant sonic effect, whilst also increasing
the amp’s power output.
The 6000A delivers 50W per channel into 8
ohms; the 7000A ramps this up to 70W, with a maximum current delivery
of 9 Amps into difficult loads. The output stage of the discrete power
amp circuits uses a CFB (Complementary Feedback) topology, ensuring
superior linearity and excellent thermal stability, as the idle current
is kept independent of the temperature of the output transistors. The
6000A’s 200VA toroidal transformer has been uprated to a new 250VA unit,
combining with 60000uF reservoir capacitance to maintain firm control
of the music whilst enabling excellent dynamic range.
Headphone
listeners are well served too, thanks to the 7000A’s dedicated headphone
amplifier. With its current-feedback design and high slew rate, a
dynamic and detailed performance with all manner of headphones is
assured – a far cry from the elementary headphone outputs of most
integrated amps.
The preamp section is kept as simple as possible
to maintain signal purity, with line input signals passing to a
precision analogue volume stage. Much effort has gone into the physical
layout of the 7000A’s circuitry, protecting the sensitive preamp section
from noise interference. This, plus the use of independent low-noise
power supplies for critical stages, combined with enhanced mains
filtering, helps to deliver a performance that rivals significantly more
expensive analogue amplifiers – even before taking the 7000A’s
impressive digital circuitry into account.
Pre and power operational modes
As
is traditional with Audiolab’s integrated amps, right back to the
original 8000A from 1982, the 7000A offers three distinct operational
modes which reflect its discrete internal architecture and enable it to
adapt as its user’s requirements evolve. The primary mode is
‘Integrated’ – this combines the pre and power amp stages, for the
connection of digital and analogue sources to the amp’s inputs and a
pair of speakers to its binding posts.
‘Pre-Power Mode’
disconnects the pre and power amp stages. The allows the 7000A to be
used solely as a power amp – for example, connected to an AV processor
in a home cinema system. It also enables additional signal processing to
be added, by connecting the 7000A’s ‘preamp out’ socket to an external
processor, then returning the processor’s output to the amp’s ‘power amp
in’ socket.
Finally, ‘Pre Mode’ disables the power amp stage,
turning the 7000A into a standalone DAC/preamp. This enables external
power amplification to be added, thus providing a possible upgrade path.
Versatile features, virtuoso performance
The 7000
Series is a logical step for Audiolab, filling the space between the
entry-level 6000 Series and the flagship 9000 Series by building on the
firm foundations of the former and utilising newly developed
technologies from the latter. The 7000A sits at the heart of the range
and delivers a killer combination of class-leading facilities and,
crucially, sonic performance.
The 6000A’s balance of sonic
attributes continues to ensure its popularity with critics and consumers
alike, and the 7000A is clearly cut from the same cloth – it does
everything the 6000A does well; it just does it even better. Deep,
fleet-footed bass; expressive midrange and an expansive soundstage;
treble that sings with sweet precision – the 7000A delivers an adroitly
balanced performance with all kinds of music, from rock and electronica
to classical and jazz. In short, it delivers an open window on the music
being played, as all great hi-fi should, engaging the listener with
natural, unforced energy that is fully reflective of the source
material.
Audiolab 7000N PLAY
The new 7000N Play offers a significant step up from its
still-current forebear. It similarly combines the versatility of the DTS
Play-Fi wireless audio platform with Audiolab’s sonic know-how to
deliver a great- sounding network streaming solution that is simple to
set up and use, incorporating the latest Play-Fi module, extra features
and a DAC upgrade in return for the modest additional outlay. Users can
stream from any source connected to their home network – smartphones,
tablets, PCs and Macs, as well as NAS drives and music servers –
utilising the 7000N Play’s dual-band, dual-antenna Wi-Fi. It also
connects wirelessly with other Play-Fi-equipped devices, enabling a
fully synchronised multi-room set-up.
There are three ways to stream once the 7000N Play is connected to a
broadband router via Wi-Fi or Ethernet cable. The first is via the
Play-Fi app, which gives access to a variety of online streaming
services including Tidal, Spotify, Amazon Music, Qobuz and Deezer, plus
thousands of internet radio stations and podcasts, as well as streaming
content stored on local DLNA-compliant devices. The second is Spotify
Connect, which enables streaming direct to the 7000N Play using the
Spotify app rather than the Play-Fi app. And the third is AirPlay 2,
which gives access to Apple Music and other streaming platforms when
using an iPhone, iPad, Mac or Apple TV as the source/control device.
AirPlay 2 is a new feature added to the 7000N Play, and an important one
for Apple users.
Upgraded internals
The 7000N Play incorporates a high-quality DAC
(Digital-to-Analogue Converter), upgrading the ES9018K2M Sabre32 chip
found in the 6000N Play to the new-generation ES9038Q2M – as used in
Audiolab’s new 7000A integrated amp. This is accompanied by proprietary
circuitry to make the most of ESS Technology’s HyperStream II
architecture and Time Domain Jitter Eliminator for ultra-low noise and
high dynamic range. Hi-res audio streaming is supported to 24-bit/192kHz
over Wi-Fi and Ethernet cable.
The inclusion of a DAC stage ensures the 7000N Play can be used with any
audio system – simply connect the stereo RCA analogue output to a
regular integrated amp or preamp, or a pair of active speakers.
Alternatively, take a digital feed (optical or coaxial) to an external
DAC, or an amp with digital inputs such as Audiolab’s new 7000A.
Naturally, the 7000A is an ideal partner for the 7000N Play; when these
two components are paired digitally, an optical or coaxial cable is used
to convey the audio signal while the supplied USB control cable enables
the 7000A’s volume to be adjusted via the Play-Fi app.
The circuit design also draws inspiration from Audiolab’s new
7000CDT CD transport, incorporating the same isolated power supply with a
high-efficiency, low-noise toroidal transformer to maintain optimum
signal purity – all of which contributes to the 7000N Play’s excellent
sonic performance.
Few network streamers around the 7000N Play’s
price include a colour display – or any display at all – but Audiolab’s
new streamer sports the same 2.8in IPS LCD display and attractive GUI as
the other 7000 Series components. This shows a variety of information,
including the currently connected streaming service, track details and
format/sample rate, and provides access to functions such as balance
control, auto-standby settings, fixed or variable output, and 12V
trigger activation for system control. The menu also facilitates digital
filter selection – the same five settings provided by the 7000A
integrated amp – offering a degree of sonic tailoring to suit the source
material and the user’s personal taste.
The display can even be set to show a VU meter in ‘analogue’
or ‘digital’ form, presenting real-time signal levels for the left and
right channels – a satisfying graphical representation of the music as
it plays. As with the other 7000 Series components, animations can be
turned off and brightness adjusted, and the display can be set to
activate only when a function is accessed and switch off after a defined
period, as the user prefers.
The GUI can be navigated using the
included remote or the six buttons to the right of the display, four of
which also double as ‘preset’ selectors. These presets operate like
those on a DAB or FM radio tuner; simply select an internet radio
station, or a playlist from a streaming service, and store it as a
preset for speedy access at the press of a button – no app required.
More about Play-Fi
DTS Play-Fi is an app-controlled platform enabling
high-quality, whole-home wireless audio, capable of streaming hi-res
music up to 24-bit/192kHz and supported by a greater range of
established audio brands than any other wireless platform. The free
Play-Fi app (available for iOS, Android and Kindle Fire devices, Windows
PCs and Apple and Android smartwatches) is an intuitive gateway to a
wealth of music services including Spotify, Tidal, Amazon Music, Deezer,
Qobuz, HDtracks, TuneIn, iHeartRadio and SiriusXM. It is also your
trusty music butler, able to serve up a streaming library stored on any
DLNA- compatible NAS drive or media server on the same home network.
Play-Fi supports a wide variety of file formats, including MP3,
MP4A, AAC, FLAC, WAV and AIFF, and provides two main listening modes.
The default Critical Listening mode delivers optimal sound quality when
streaming to a single device like the 7000N Play, supporting hi-res PCM
up to 24-bit /192kHz over Wi-Fi or Ethernet cable without transcoding or
down-sampling. The second mode prioritises bandwidth for multiroom
operation by capping audio at 16-bit/48kHz – essentially CD quality –
for seamless, simultaneous streaming to as many as 32 Play-Fi-compatible
audio devices in different zones.
The versatility of the Play-Fi ecosystem is enhanced by the sheer
variety of audio devices that support it, from portable speakers and TV
soundbars to all-in-one music systems and high-end audio components,
from a wide range of respected brands. All Play-Fi-compatible audio
devices work perfectly together, providing an extensive range of options
to customise your home entertainment experience.
Play-Fi can even be integrated into TVs, including the latest
models from Philips, enabling them to stream latency-free audio over
Wi-Fi to Play-Fi-equipped devices including the 7000N Play – all
perfectly synchronised with the action on screen, no cables required.
DTS
launched Play-Fi in 2012; it was highly innovative at the time and even
now continues to break new ground in wireless home audio. Play-Fi Home
Cinema for Speakers, which arrived last year, is a case in point – this
enables all manner of wireless soundbar, speaker and subwoofer
combinations in surround configurations up to 7.2.4, seamlessly synced
over Wi-Fi. This continual thirst for progress has earned Play-Fi a CES
2023 Innovation Award, more than 10 years after it launched.
The Play-Fi app regularly evolves through automatic updates. Important
recent enhancements such as gapless playback, and the ‘transfer’
function which enables streaming without the need to keep the control
device on the Wi-Fi network, are all fully compatible with the 7000N
Play. And because Audiolab’s new streamer incorporates the latest
Play-Fi module, you can be sure this will be the case with future
updates too.