Marantz, HDMI, full -scale pre -main amplifier "Model 40n"

De -Andem Holdings will launch a network -compatible pre -main amplifier "MODEL 40n" that can be connected to TV with HDMI ARC in late March.The lineup of two colors, silver gold and black, is 286,000 yen (tax included).Combined with a TV ■ Conscious of the TV connection, HDMI transmission is independently equipped with a high -quality sound -quality network audio playback function, and equipped with ARC -compatible HDMI terminals, so that it is conscious of the application to connect to TV etc.。The amplifier is equipped with an analog amplifier, which can be used for pure audio or for home theater in the living room.In addition, as described later, the audio signal transmission via HDMI is applied to high sound quality.Like the "Model 30" and "SACD 30N" released in 2020, the housing design that symbolizes the new generation of Marantz is adopted.As described above, two colors were prepared to harmonize with the space, so that it could be used without discomfort even if placed in the living room.Mr. Takayama, who is in charge of Marantz spokeswoman, appeals, "Simple, it leads to anything with a stylish appearance, it can be used by anyone, and it sounds very good. Such a product."In addition, Model 30 is not a relationship between the upper/lower model or a successor, but is sold together because the character as a product is different.With the renewal of the design, the mechanism design can be fully reviewed, the thickness of the main chassis steel plate is equivalent to the high -end machine "12 Series", and the aluminum side cover exceeds the 12 series 5..Adopts a 7mm high rigidity aluminum panel.In addition to the main chassis, a 3mm thick bottom plate has been added.In addition, it has been thoroughly improved to the details, such as using a particularly thick screw to fix the insulator and power transformer, and this has achieved robustness comparable to the upper model.The HDMI terminal is compatible with ARC and HDMI CEC, and can enter up to 192kHz/24bit linear PCM (2ch).The audio signal transmitted through an HDMI cable is integrated into a digital audio selector (DIR) directly in a digital audio selector (DIR), without using an HDMI interface device.In addition, sound quality tuning, such as strengthening the power of digital audio circuits, reducing noise, and enhancing grounds.Thus, it achieved high -quality sound quality similar to other digital inputs in the voice signal transmission in HDMI.It is said that it was not a multi -channel but a stereo regeneration model, so it was not compatible with EARC.■ Variable gain type Volume circuit uses the Model 30, which is also mounted on the Model 30, and the highest grade volume control IC "MUSES 72323", which is also mounted on Model 30.This is a linear control circuit that combines the high-speed amplifier module "HDAM" and "HDAM-SA2" with this Muses 72323.Power amplifiers of parallel, push -pull/full -time crises, and variable gain -shaped volume controls that are not amplified by preamplifiers within the generally used volume and amplify only with power amplifiers.Achieve 45%noise reduction compared to PM8006.This linear control volume circuit does not have a cross talk or volume difference between left and right channels that cannot be avoided due to structural volumes, so that spatial expressiveness can be greatly improved.The volume is 0 gain between 0 and 78, and is fixed to a low gain so that the SN feeling is improved when the medium volume or low sound is high.It is a variable gain only when it is loud.Regarding the volume of “78”, the developer Ogata explained that it was “loud volume that is not used at audition events”, and continued, “Japanese customers often use about 40 or 50.”。He also explained that click noise does not occur during the volume operation by changing the gain due to zero cross detection.According to the acceleration detection system, it is possible to adjust the volume quickly by turning it slowly and quickly turned it quickly.In addition, since the variable resistance is not used, there is no change in sound quality due to aging of volume parts, and it is appealing that it can be used with confidence for a long time.■ Power amplifier amplifiers of parallel, push-pull/full -is crises adopt a full discrete-configuration-composed current returning amplifier circuit using "HDAM-SA3".Approximately 1 of the instant current supply capacity by configuring the output stage with parallel push -pull.It is raised to 68A, which is 5 times, and greatly improves speaker driving force.According to Mr. Ogata mentioned above, the number of transistors is also increasing significantly.He explains, "If you compare it, you can make a large current by increasing the faucet."In addition, a copper plate has been added to a thick aluminum extruded heat sink to quickly spread the heat generated from the transistor, dissipate heat, and stabilize the operation of the transistor.These say that they have a stable and high -quality sound with a large output of 100W+100W (4Ω) regardless of the speaker or volume.A power amplifier power supply circuit and a short power line layout that integrates the power amplifier and output stage to improve instant current supply capacity.By connecting the large current line in the shortest distance and placing the left and right channels symmetrically, the instantaneous power and the excellent spatial expression power are achieved.Equipped with the largest large -capacity Troidartrance in the class, with a mass of 17%and 14%in diameter compared to PM8006.Consideration was made to withstand a stable supply of clean current, and to withstand instantaneous current demands.In addition, as a measure against leaked magnetic flux, a double shield is applied to aluminum short ring, which suppresses vertical magnetic floods, and a silicon steel plate shield that suppresses horizontal magnetic floods.In addition, a magnetic field loop is also blocked by using a fixed bolt as a non -magnetic brass.And the rectified circuit is an ultra -low -leak current shot key barrier diode.In addition, the smooth circuit uses an Eranz -only custom block condenser (18,000 μF / 50V), which feeds back the know -how cultivated in advanced models.Equipped with MM cartridge-type Fonoi Corber "Marantz Musical Phone EQ" for high-resolution compatible network playback and various streaming music distribution.The two -stage amplifier configuration with the gain per step lower and the conversant and current feedback circuit in the audible band are reduced.In addition, the input coupling condenser is eliminated by adopting the front phase amplifier for the J-FET input, improving the purity of the signal path.In addition to the phonoi coarizer in the shield case, the shield plate is also provided between the adjacent D/A conversion circuit, reducing the effects of outpatient noise.■ Equipped with a network audio function by the unique wireless audio system "HEOS" that supports network playback and various streaming music distribution for high -resolution.You can play NAS, USB memory, and HDD sound sources, or play music through smartphones and tablets with Bluetooth.You can also distribute music being played on other HEOS devices in the same network on Model 40n.It also supports various music streaming services such as Amazon Music HD, AWA, Spotify, and SoundCloud.It also supports Internet radio, and can search for various internet radio stations from "Tunein".It also supports Amazon Alexa, and can control voice from Alexa -equipped devices.It also supports AirPlay 2, can play multiple rooms with multiple AirPlay 2 compatible devices, and add Model 40n as accessories on the "Home" application, and play songs in Apple Music and iPhone libraries with voice control using Siri.You can do it.Wi-Fi is 2.Both 4 GHz and 5 GHz bands can be used, and MIMO (Multiple-Input and Multiple-Output) is also available.Connection to the router also supports the share of settings from "WPS" and iOS devices (iOS 7 or later) connected by a single button.Maximum DSD 5 for music playback from NAS, USB memory, and HDD.Compatible with 6MHz and PCM 192kHz/24bit.It also supports gaplless playback of DSD, WAV, FLAC, and Apple Lossless file.■ In addition, there are many other commitments to high -quality sound quality, preamplifier, D/A conversion circuit, and phonoichorizer circuits, copper foil film capacitors, high -quality electrolytes, high -quality electrolytes, which are also used in higher models.Uses high -quality parts carefully selected by listening tests, such as precision melf resistance and metal film resistance.The speaker output is equipped with a Marantz original speaker terminal "SPKT-1 +".The core part is a robust thing that has been shaved from solid brass wood, and as a result of the listening test, the surface treatment uses a thick nickel plating instead of the two layers of the conventional nickel ground + gold plating.It was said.Terminal is 4 diameter.Compatible with cables up to 5mm.It also supports Y rugs and banana plugs.In the input / output terminal, gold plating is applied.The effects of mutual interference and outpatient noise are eliminated by containing digital audio substrates, D/A conversion circuits, and phonoichorizer circuits containing network modules in a shield case.In addition, the physical distance between the power supply circuit and the audio circuit is increased, and the layout that arranges heat sinks that function as a shield in the meantime will block the impact on the audio signal due to noise and leaked magnetic floods generated from the power circuit.。In addition, it is equipped with a function to turn off the network and USB memory playback, Wi-Fi and Bluetooth circuits individually, and to turn off the display.Thus, noise from the surrounding circuit that affects analog audio signals is suppressed.The audio input terminals include the above -mentioned HDMI and USB, optical digital input, coaxial digital input, Power Amp in that can be connected to preamplifiers, one phono (mm), and three imbalance."The sound quality is tuned not only in HDMI but also in all inputs" (Ogata).And the output is equipped with a subwoofer prolition, a REC out, and a headphone terminal.

Editorial Department: Yoshiki Ono