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Accuphase A-250 CLASS-A MONOPHONIC POWER AMPLIFIER

Accuphase A-250 CLASS-A MONOPHONIC POWER AMPLIFIER

The A-250 encompasses Accuphase power amplifier know-how to the fullest. It is destined to become another milestone, taking the art of audio to the next level. In order to realize ideal speaker drive capability, the A-200 employs a structural design that exceeds even the M-6200. Two completely separate power amplifier units, each with its own dedicated heat sink on either side of the chassis, are driven in parallel.
Another outstanding characteristic of the A-250 is its enormously improved S/N ratio. By adopting the advanced instrumentation amplifier principle for the input stage in a double configuration, using only discrete electronic components instead of ICs, and fine-tuning the gain complement with the following stage, simply amazing S/N ratings were achieved: 126 dB at the maximum gain setting and 132 dB with gain set to –12 dB. These represent ultimate values even in the formidable Accuphase lineup.

Accuphase  DC-950 PRECISION MDSD DIGITAL PROCESSOR

Accuphase DC-950 PRECISION MDSD DIGITAL PROCESSOR

The DC-950 is the ultimate digital processor using only specially selected materials and advanced digital technology. Glass fluorocarbon resin PCBs and completely separate power transformers for digital and analogue circuitry assure peerless performance that brings out the full musical richness of the digital source signal. A digital processor that redefines the state of the art.

Accuphase A-36 CLASS-A STEREO POWER AMPLIFIER

Accuphase A-36 CLASS-A STEREO POWER AMPLIFIER

The new A-36 inherits many of the outstanding design technology features developed for the higher-end models. It redefines the baseline for pure class A power amplifiers and represents the same unwavering attention to detail and dedication to sound quality for which Accuphase is justly famous.
In the output stage, power MOS-FETs renowned for their excellent frequency response, sonic performance, and superior reliability are used in a triple parallel configuration and driven in pure class A. This is sustained by the strong power supply featuring a massive transformer and two large 47,000μF filtering capacitors. Output power in each channel is rated for an impressive 150 watts into 1 ohm, 120 watts into 2 ohms, 60 watts into 4 ohms, and 30 watts into 8 ohms. Even speakers with ultralow impedance or drastic fluctuations in impedance curve can be driven reliably by this impressive amplifier.
In the output circuitry, MOS-FET switches are used in place of relays, to eliminate mechanical contacts and improve long-term reliability.

Accuphase A-48 STEREO POWER AMPLIFIER

Accuphase A-48 STEREO POWER AMPLIFIER

Featuring a six-fold parallel push-pull architecture with power MOS-FETs, as well as ideal gain allocation realized with discrete semiconductors in an instrumentation amplifier configuration, the A-48 harnesses a wealth of advanced technology. Its outstanding performance is exemplified by a signal/noise ratio of 117 dB, output of 360 watts into 1 ohm (music signals), and a damping factor of 800. The newly designed output protection circuit can detect any short-circuiting of the speaker terminals, for complete peace of mind. This power amplifier is the ultimate instrument for immersive music appreciation on the highest level.

Power MOS-FETs in 6-parallel push-pull configuration
Linear output characteristics over entire load impedance range
Strong power supply with massive toroidal transformer and large 60,000 μF filtering capacitors
Instrumentation amplifier principle
High-gain signal input section in discrete configuration
Dedicated power supply for signal input section
Polarity switching for balanced input connectors
MCS+ circuit topologys
Current feedback principle in amplification circuitry
Protection circuitry using MOS-FET switches
High damping factor of 800
Speaker output protection circuit guards against short-circuiting
Two sets of large speaker terminals
4-step gain control
Support for bi-amping and bridged mode
Aluminum top plate with hairline finish

Accuphase A-75 CLASS-A 60W/ch STEREO POWER AMPLIFIER

Accuphase A-75 CLASS-A 60W/ch STEREO POWER AMPLIFIER

Instrumentation amplifier topology using discrete semiconductors realizes ideal gain allocation. Balanced Remote Sensing optimizes efficiency of negative feedback. 10-parallel push-pull configuration in power amplification stage. The overall result is outstanding S/N ratio and amazingly high damping factor. Furthermore, constant-voltage drive handles even drastic speaker impedance fluctuations with ease. Power MOS-FETs and other carefully selected components and materials make this Pure Class A Stereo Power Amplifier a sheer delight to experience.

Accuphase C-2150 STEREO CONTROL CENTER

Accuphase C-2150 STEREO CONTROL CENTER

The C-2150 for the first time combines a new topology called ANCC with the AAVA volume control principle. As a result, music reproduction is supple, elegant and full of transparency, with a spatial expression capability that makes one forget the presence of any volume control circuit. With a functionality level close to higher-end models and a versatile array of input and output terminals, plus the choice of adding option boards, the C-2150 provides fully immersive music enjoyment. This next-generation control center will satisfy even the most demanding music lover.

Accuphase C-2450 PRECISION STEREO CONTROL CENTER

Accuphase C-2450 PRECISION STEREO CONTROL CENTER

Blending the purely analog AAVA volume control circuit with sophisticated technology inherited from the C-2850 results in superb S/N ratio and a refinement of expression that brings new clarity to the music. The utterly smooth operation feel of the volume sensor assembly and a top plate made of brushed aluminum with a hairline finish demonstrate a level of dedication and hands-on craftsmanship that pervades every aspect of this preamplifier. Each C-2450 is individually honed to provide nothing short of perfection.

Accuphase C-2850 PRECISION STEREO PREAMPLIFIER

Accuphase C-2850 PRECISION STEREO PREAMPLIFIER

C-2800 series renewal creates the ultimate preamplifier — C-2850. A new preamp generation defined by the harmony of craftsmanship and technology. The revolutionary AAVA (Accuphase Analog Vari-gain Amplifier) principle which enables optimal volume adjustment has been further refined, for ultra-low noise and utterly quiet operation, combined with perfect operation feel. Experience the ultimate in volume control performance and comfort from a component that is in a class of its own. Sophisticated technology and optimized construction using only carefully selected top-notch parts and materials provide effortless operation stability, with ample performance leeway that is the secret behind ultimate reliability. Each single C-2850 is lovingly built by highly experienced craftspersons skilled in the art. The result is a product destined to transport the listener into the enchanting realm of high-end audio.

AAVA volume control for high performance and outstanding sound
Separate high-efficiency toroidal power transformers for left and right channels
Selectable preamp gain
Fully modular construction with separate left/right units for each amplifier stage
Logic-controlled relays for shortest signal paths
Independent phase selection for each input position
Printed circuit boards made from glass cloth fluorocarbon resin
Optional playback capability for analog records
Massive wood cabinet with natural grain finish

Accuphase C-3900 PRECISION STEREO PREAMPLIFIER

Accuphase C-3900 PRECISION STEREO PREAMPLIFIER

To celebrate the 50th anniversary of Accuphase’s founding, the development of a new flagship model to incorporate the entire wealth of the company’s experience was begun. Now, after five years, the work is complete. The C-3900 represents an uncompromising harmony of technology and sensibility, boasting ultimate performance and sound quality that ushers in a new era of the preamplifier.

The Dual Balanced AAVA design with two balanced AAVA circuits delivers sonic excellence that is transparence itself. Volume adjustment is realized while retaining all the vibrant energy and richness of detail that is the life breath of an artistic performance. The supple elegance of music as reproduced by the top-of-the-line C-3900 is a moving experience that reflects the impressive depth of Accuphase know-how.

Accuphase C-47 STEREO PHONO AMPLIFIER

Accuphase C-47 STEREO PHONO AMPLIFIER

The C-47 is the first phono amplifier of this series which realizes a fully balanced configuration from input to output. The resulting product not only is highly impervious to external noise, it also features a dedicated head amplifier optimized for the characteristics of MC and MM phono cartridges, and a high-accuracy equalizer amplifier, thereby ensuring precise equalization with a minimum of noise. A set of newly added dedicated balanced MC phono inputs enables balanced connection to the analog record player. By bringing out the full performance potential of each phono cartridge, the C-47 delivers a rich and deeply satisfying musical experience.

Accuphase DC-37 MDSD DIGITAL PROCESSOR

Accuphase DC-37 MDSD DIGITAL PROCESSOR

The DC-37 inherits the outstanding technology of the DC-901 and DP-720, while opening a new chapter in ultra-advanced and innovative digital signal processing technology. It features an MDSD type D/A converter that achieves straight conversion of the DSD signal and supports 5.6448 MHz (1-bit 2-channel DSD) sources. In keeping with this development, the HS-LINK interface has also been upgraded to Version 2 with significantly expanded sampling frequency and quantization support up to 5.6448 MHz (1-bit 2-channel DSD) and 384 kHz (32-bit 2-channel PCM). The DC-37 also offers convenience and flexible functionality. External digital sources can be connected via a total of six digital inputs: HS-LINK, COAXIAL 1, COAXIAL 2, OPTICAL 1, OPTICAL 2, and USB. The DC-37 is a digital processor that redefines the state-of-the art and has its sights firmly set on the future, including computer-based and high-resolution audio. Only strictly selected circuit components, materials and other parts of the highest quality are used, resulting in an immense richness of information that translates into a spectacular musical experience.

Accuphase DF-65 DIGITAL FREQUENCY DIVIDING NETWORK

Accuphase DF-65 DIGITAL FREQUENCY DIVIDING NETWORK

The Accuphase DF-65 Digital Frequency Dividing Network harnesses the very best of digital technology in every aspect, including a high-speed 40-bit floating point DSP. The standard unit configuration supports signal processing for up to four-way systems. Highly accurate digital filters offer a choice of 59 cut off frequency points and up to 96 dB/octave attenuation. Integrated time alignment function adjustable in 0.5-cm steps, and delay compensator for automatically offsetting any filter circuit delays. Monophonic output mode provides high versatility for various configurations.

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