Content | For a long time, installers worldwide have been unhappy with consumer electronics and they were looking for a professional integrated amplifier for use in commercial environments, boardrooms or small businesses designed for 24/7 operation. Therefore Apart developed the CONCEPT1, a stereo or two mono channel (2 x 80 watts @ 4 ohms) amplifier for small and medium-sized projects.
This CONCEPT1 2-zone integrated stereo amplifier can operate with one stereo zone, two volume-linked mono zones or two individual-volume mono zones. The unit can be controlled via RS232 what makes integration into your AV solution possible. The built-in limiters and system design guarantee a failsafe solution 24 hours a day, 7 days a week.
To make the life of the end-user as easy as can be, the CONCEPT1 has user settings and installer settings. Only the absolute
19" (483 mm wide) rack mounting |
Yes |
height- rack units (1U=44 mm) |
2 U |
depth (build in) |
293 mm |
power supply |
230 VAC volts |
power consumption (max) |
< 200 watts |
output power RMS 4 ohms |
2 x 80 watts |
output power RMS 8 ohms |
2 x 60 watts |
music program power |
100 watts |
minimum impedance load |
4 ohms |
zone outputs |
2 |
MIC inputs balanced |
1 |
line input unbalanced |
4 |
tone control |
Yes |
RS232 (serial communication port) |
Yes |
priority switch |
2 |
priority levels |
1 |
cooling system |
convection |
applicable low impedance |
Yes |
|
Driver Complement
Electrical
Dimensions
Cabinet Size 3-1/2" H x 17" W x 12-5/8" D
(8.89cm H x 43.18cm W x 32.07cm D)
Shipping/Other
Shipping unit: each
Total Shipping Weight 14.00 lbs. (6.35kgs) |
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 |
Overview
Integrated Amplifier with DAC mode
Integrated Amp with USB-DAC for High-res Audio and "Simple & Straight” Engineering Design from High-end Models
- 2 x 160 W (4 ohm) output
- Advanced Ultra High Current (UHC)-MOS Single Push-Pull Circuit Power Amplifier with new Schottky barrier diodes
- DAC Master Clock Design
- USB-B input for High Resolution Audio up to 384 kHz / 32 bit and 11.2 MHz DSD
- Digital isolator to eliminate high-frequency computer noise on the USB-B
- Low noise OLED display for source and sample rate indication
- Analog Mode for pure audio reproduction switching off digital audio circuitry and display
- Advanced AL32 Processing Plus
- Direct Mechanical Ground Construction to minimize unwanted vibration
- Chassis construction with 6 independent blocks to eliminate noises
- Leakage-cancelling-mounted twin transformers
- Main transformer with separate power supplies for analogue and digital circuits
- Wide dynamic range playback, supporting high-resolution audio sources
- High-grade volume control for precise adjustment
- 2 Digital Optical and 2 Digital Coaxial inputs
- High performance MM & MC Phono Equalizer Amp
- Available in Premium Silver
Denon is one of the rare audio brands that continued to actively develop Hi-Fi components and accumulate, refine, and pass down Hi-Fi audio technologies. The 2500NE series, designed for todayʼs age, has been developed by both veteran engineers and talented young engineers who have inherited the Denon technologies and expertise that have been cultivated over many years and decades. And the performance of the PMA-2500NE goes well beyond that of Denonʼs previous PMA-2000 series. With its ultimate built-quality, unique Denon technologies and state-of-the-art connectivity, the PMA-2500NE truly is a masterpiece of sound technology. Thanks to the rear USB-B input and embedded high quality D/A converter, the PMA plays high resolution files up to 384kHz/32bit and DSD up to 11.2MHz from a computer in impeccable sonic quality. For the best performance from analogue inputs, the PMA features an Analog Mode which allows to switch off all unutilized sections like the digital input circuitry or the low noise display for an unaltered audio reproduction.
Channels 2
Digital in: USB-B / optical / coaxial / USB-A / 2 / 2 /
Sample Rate digital In 192 kHz / 24-bit
USB-B DSD Audio Streaming (DoP): DSD2.8 / DSD5.6 |
Toroidal Transformer
We mount the premium toroidal transformer centrally, to reduce flux or magnetic disturbance from the volume pot.
Dynamic Thermal Tracking transistors
The output power transistors used by the CXA60 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 re-bias 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 CXA60 is always running at optimum performance.
Musical Subwoofer output
If you want to use a subwoofer as part of your speaker complement, the CXA60 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.
Fully balanced signal management
Thereʼs some revolutionary signal management happening beneath the lid of the CXA60. For the first time, our engineers decided to go fully balanced rather than single-ended all the way through. As a consequence, any noise that that might be picked up in the audio signal while routing through the amplifier is cancelled before itʼs output.
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 CXA60 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.
Bespoke Bluetooth
If you want to use your CXA60 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 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 CXA60 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 CXA60 uses a logarithmic ALPS pot. And when it comes to switching inputs, the CXA60 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:60W RMS into 8 Ohms, 90W RMS into 4 Ohms
- DAC:Wolfson WM8740
- Frequency Response:
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The PM6006 is an upgraded successor of the multi-award-winning PM6005. We've retained the pre-amp and power-amp sections that exclusively feature discrete components - not a single IC in sight of the signal path. The PM6006 is upgraded for peak current at the amplifier stage, which makes it possible to refine the sound for you in much more detail.
Maximum Dimensions (W x D x H) | 17.3 x 14.6 x 4.1 |
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