Synästec Integratus

 

Info

SPEC RSA-EX1000

 

Info

Cayin P30th

 

$17500

Enleum AMP-54R

 

The AMP-54R is Enleum's new statement product and flagship amplifier. Building upon the latest achievements and advancements made with the AMP-23R and HPA-23RM, we have employed our absolute best technologies and uncompromising designs in the AMP-54R, making it a statement product.

Over the past years, we have made significant technological advancements, including the development of the JET Bias, our proprietary software-controlled bias system. This breakthrough has enabled us to design the AMP-54R with next-level performance, stability, efficiency, and most importantly, sound quality. Along with the latest circuits, we have also achieved significant breakthroughs in industrial design, improving aesthetics, precision, rigidity and overall build quality.

With these engineering efforts, the AMP-54R boasts its compact form factor with dimensions of 400mm x 400mm x 70mm (width x depth x height), nearly half the volume of the previous flagship AMP-51R while maintaining the same output power. Additionally, the transformer power has increased by 25%, and the power supply capacitance has been doubled, now in a dual-mono configuration. 

Enleum is proud to offer two optional modules for the first time in our amplifiers. The first module is our proprietary current input phono preamplifier stage, which maximizes the performance of MC cartridges by using current signals. The second module is a streaming DAC module with coaxial and optical inputs. These modules make the AMP-54R a complete all-in-one amplifier solution for the no-compromise minimalist high-end audio system.

The AMP-54R is meticulously assembled and tested by Enleum's chief engineers either in Korea or California depending on the final delivery destination. The preliminary MSRP for the base AMP-54R, excluding the optional modules, is approximately $20,000, €25,000 (including EU VAT), and £25,000 (including UK VAT). Please note that the MSRP is subject to change upon the production release in Q3/Q4 2023.

* Enleum will showcase the first prototype of the AMP-54R at High End Munich (Room F204 - A4.2) from May 18th to 21st.

Dan D’Agostino Momentum MxV Integrated Amplifier

 

Dan D’Agostino Master Audio Systems Introduces Second Generation Momentum Integrated – the Momentum MxV integrated Amplifier.

The Momentum MxV Integrated Amplifier by Dan D’Agostino Master Audio Systems achieves a level of performance never before possible in an integrated amplifier. Combining the front-end technology from the Momentum HD Preamplifier and the power section of the Momentum MxV amplifier, it delivers Momentum Series performance in a compact framework only hinting at the advanced circuitry within. Employing a configurable, modular design, the core line stage section can be augmented to include a digital streaming and/or a phonostage module. When fully equipped, the Momentum MxV Integrated Amplifier topology is a seamless circuit working as one from input to output, optimizing performance in a way otherwise not possible.

Benefiting from extensive development previously applied to the Momentum Series separate components, the Momentum MxV Integrated Amplifier executes on the potential that an integrated solution offers. The Momentum MxV integrated Amplifier is a modular design that is configurable to a listener’s preferences. The core line stage preamplifier section can be augmented to include a digital streaming and/or a phonostage module. When fully equipped, the Momentum MxV Integrated Amplifier topology is a seamless circuit working as one from input to output. Each internal section is highly specialized but knowing the exact complement of power supply, control, and audio circuitry being used together, affords engineering a vison of the system that is typically not possible.

“Our engineering team has taken the inherent benefits of an integrated design and elevated it to a new level of sonic performance.” said Bill McKiegan, President of Dan D’Agostino Master Audio Systems. “We’ve incorporated key circuitry elements from the Momentum HD preamplifier, Momentum MxV, and Relentless models resulting in a listening experience that truly sets a new standard for integrated amplifier sound quality.”

Power Supply

Defying its compact size, the Momentum MxV Integrated is a powerhouse amplifier. The backbone is a new ultra-quiet 2,000VA linear transformer. A unique toroidal winding technology, delivers greater power output from a similarly sized conventional transformer. Surprisingly small for its capability, this engine drives a nearly 60,000ⲙF capacitor bank resulting in 250/500/1,000W power output into 8/4/2Ω speaker loads. Internal circuitry filters RF noise from the AC powerline and compensates for asymmetric power waveforms and DC on the mains.

The scope of the Momentum MxV Integrated amplifier design requires the use of two separate chassis – a dedicated audio chassis and a separate power supply. The two chassis interlock through special mechanisms in the mounting feet of each chassis. Thirty pin interlocking 30-amp, gold plated connectors eliminate wiring normally used for these applications and the associated anomalies that can occur. This distinctive construction isolates the audio signal completely, both physically and electrically from the power supply section. Physical isolation offers additional room to maximize both power and audio circuitry.

Audio Circuitry

Every major section of the integrated amplifier has been touched by technology advancements pioneered in the Relentless and Momentum MxV series models. Starting with the preamplifier section, six individual left and right circuit boards make up the input, volume control, and output sections. The core topologies have been appropriated from the Momentum HD Momentum Preamplifier including an innovative FET-based input stage.

The distinct advantage of an integrated amplifier is the direct connection of the preamplifier amplifier stage to the amplifier input section. This pure path eliminates connector and cable anomalies that potentially impact electrical and sonic performance. Critical to the new circuit are the bipolar transistors powering the front end of the amplifier. These wider bandwidth, higher power components extend low and high frequency performance with reduced distortion in both frequency extremes. Energizing the driver stage is a new bias stability circuit providing a nearly 50% increase in operating bias. Increasing Class A operation directly correlates to better sound quality. With the new MxV circuit topology and our unique Copper/Aluminum thermal engine heatsink, heat issues are not a practical concern in the Momentum MxV Integrated Amplifier. The new bias scheme ensures bias consistency, preventing excessive temperatures even under the greatest demand. Additional power transistors in the output stage reduce workload for each device. By minimizing stress on each individual device, the entire output section works more efficiently. The result is a richer, more dynamic, intimate presentation regardless of musical genre.

The final output stage features new output transistors that were originally sourced for the flagship Relentless Monoblock Amplifier. 28 high speed, high-output transistors are used in the Momentum MxV Integrated Amplifier. Each transistor mounts directly to the copper heat sinks. A capacitor/resistor network connected to the base of each transistor ensures stability even at high frequencies and with low-impedance speakers. Additionally, every output transistor is measured and only devices that match the required performance specifications are included in the production of the Momentum MxV Integrated Amplifier. As with all D’Agostino models, the Momentum MxV Integrated Amplifiers feature discrete, direct-coupled balanced circuitry, the most accurate circuit platform possible.

Digital Streaming and Phono Module

An optional digital module vaults the Momentum MxV Integrated into the cutting edge of today’s digital listening environment. The digital enhancement adds connectivity for legacy sources, both source and host USB functionality, and premier streaming functionality. Field upgradeable, the digital module adds SPDIF coaxial, Optical, and USB-A for legacy digital components and Ethernet and Wifi for network-based music. A dedicated iOS D’Agostino DSM app provides built-in Tidal, Qobuz, MQA decoding, plus complete unit control. PCM signals up to 32 bit/192 KHz and DSD1024 signals are supported.

The optional phono module adds vinyl playback capability to the Momentum MxV Integrated Amplifier. Low output moving coil cartridges are supported with over 60dB of gain and loading options from 100W-47kW.

Every Momentum MxV integrated amplifier is hand-built and individually tested in D’Agostino’s Arizona factory by our team of technicians and craftsmen. The Momentum Integrated is $65,000 for the base model. The optional Digital Streaming Module is $10,000 and the optional phono model is $5,000 and will begin shipping in May, 2023 in silver or black finishes.

Aries Cerat Aperio integrated amplifier

 

Tobian Soundsystem VR 40 Integrated Amplifier

Mono construction
2 x 9 watts
Single ended
Power Takatsuki 300B
Rectifier Takatsuki 274B
Driver 6j5g
Line Stage 71a
Weight 28 kg

Fundamental PA10NR integrated amplifier

$11000

Paltauf HPI-300

Granite, wood and stainless steel reflect the inner values of our top model.  The high output power of over 300 watts into 4 ohms, a further increase in the quality of the components and the vibration-reduced  housing guarantee this hybrid amplifier to function with the highest reliability.

Be it large orchestras, atmospheric jazz clubs, open-air concerts or sophisticated studio recordings, the HPI-300  emulates  a nearly live concert experience.

No matter which type of music this amplifier excels in producing a crystal clear fidelity sound.


Signal voltage amplification with tubes

Producing a natural, lively sound image due to high dynamic range with very low distortion.


Balanced output stage

With complementary lateral MOSFETs: broadband, high current capability, lowest distortion.


Active volume control

Constant high sound quality independent of volume setting (mechanical potentiometers change their technical characteristics according to slider settings).


Power supply

Elaborate power supply with voltage stabilizers for each amplifier stage - three stabilizers for the audio circuitry, separate independent power supply for the control functions. Individually adjustable power supply, specially designed for audio applications for the output stages.


Processing

High quality components, e.g. 1% and 0.1% precision resistors, highest quality film capacitors in the signal path, 105° electrolytic capacitors with high durability in the power supply, circuit boards with optimized conductor path.


Power supply

For output stage: Switching power supply for 1.2 KW


Technical data:

2 x 160 watts/8 ohms, 2 x 300 watts/4 ohms
Frequency response: 5 Hz to over 100,000 Hz (-1db)
Remote control


Connections:

4x Stereo high level inputs Cinch
1x Stereo high level input XLR balanced
1x mono subwoofer output
1x connectors for a pair of stereo speakers


Dimensions and weight:

depth: 48,5cm
width: 46 cm
height: 21 cm
weight: 18 kg

Silbatone JI-109

£10000

Aura Fidelity Audiophile Amp 110 Class A-A

Traditional

The basic DNA of almost any  audio amplifiers has been the same for many years. You can clearly see  the three stages found in many audio amps. They are differential, voltage gain and current output stage. The design and building of these stages can be very advanced. It can also output alright and to a point beautiful music. However they are far from perfect.

​The mixing of feedback signal with pure input signal in the differential is a disaster.  Inverting the signal phase twice  through a not entirely perfect designed signal path results in a lot of small errors.

It results in a kind of “electronic fog. The biasing of the current output stage could be better with  new thinking and renewing.


Aura Fidelity has designed and built a totally different audio amplifier system.

It starts with two non inverting voltage gain stages with 1/25 gain. The first one works with the positive part of the signal phase, the other one the negative part. The distortion in these stages is close to zero. The signal gets energy from the non inverting current gain. From there it is directly transfered to the output current stage.

The design allows operation without any form for feedback. An advanced Bias Servo Circuit, free and independent of line swings provides max efficiency to the high linear output transistors.

The Aura Fidelity Audiophile AMP 110 stands for a superb music reproduction - it is well defined and pure over the whole frequency range. It is purely designed for audiophiles and music lovers.


Technical Data:

Output Power:
2x160 Watt 4 Ohm

Frequency range:
20 Hz -25 KHz +/- 0.05 dB

SN:
98 dB

THD:
< 0,005 %

Built in Dac

2 digital TOSLINK inputs
2 digital RCA inputs

2 unbalanced RCA inputs
1 unbalanced RCA pre-amp output
1 balanced XLR input
​1 balanced XLR pre-amp output
2 speaker outputs

Programmable remote control

Size:
400 x 435 x 110 (DWH)

Finish: Silver, Black

Atomico Mk II integrated amplifier

Meganom

50 watt class A mosfet integrated amplifier from Russia.

Bit & Beat BLUEAMP Op.6, No.1 "Gradevole"

Driving circuit onsists of the most general and simple two-stage differential amplifier to match the output terminal, and uses a solid capacitor with excellent performance for significant voltage gain and feedback circuitry to maintain maximum linear characteristics even at low levels.

The current amplification terminal uses Mosfet with a small driving current and the bias circuit is designed with a stable bias by configuring an auto tracking circuit to cope with changes in temperature and conditions so as to be free from environmental influences.

The digital part prepared for the convenience of PC-Fi user is housed in a separate chamber so that it is not contaminated from jitter, and all connected signal lines are filtered and only sufficiently purified signal was processed to be connected to the amplifier.

A sufficient capacity transformer and a maximum speed regulation are configured and The power supply capacitors supplied to the amplifiers have been carefully selected to ensure sound quality and stability by adopting the proven audio capacitor.

NEM AI-200 hybrid integrated amplifier

Silbatone JI-107 integrated amplifier