HD-AMP1 Digital Integrated Amplifier

Housed in an elegant compact chassis that occupies just over 1 square foot of desktop or shelf space, the HD-AMP1 digital integrated amplifier features high resolution D/A conversion and compatibility with a wide range of uncompressed high resolution audio formats, including WAV, ALAC, FLAC and AIFF, and is also capable of decoding DSD tracks with compatibility of all 3 DSD sampling frequencies - 2.6/5.2/11.2-MHz (DSD is the audio format of SACD).

The powerful digital amplifier section features cool-running wide bandwidth and wide dynamic range Class D audiophile amplifier technology, delivering 35 watts per channel into 8 ohms and 70 watts per channel into 4 ohms, providing compatibility with the widest range of speaker types and impedances.

Featuring 2 USB ports, 1 on the front and 1 on the back, the HD-AMP1 lets you connect your favorite iDevice or USB drive to the front panel USB port, and your PC or Mac to the rear panel USB-B port to stream your high resolution audio tracks, and it features advanced noise isolation to guard against digital noise from degrading the high resolution sound.

Equipped with Marantz Musical Digital Filtering, our proprietary DSP filter technology, the HD-AMP1 lets you choose from 2 digital filter algorithms so you can precisely tailor the sound to your liking. The reference-class ESS SABRE DAC features 32-bit/384-kHz decoding for the highest resolution and widest dynamic range with today's advanced audiophile hi-res tracks.

The analog sections feature our exclusive HDAM-SA2 modules, including the analog front end block, the D/A converter block and in the dedicated headphone amplifier block.

There are 2 optical and 1 coaxial digital inputs, along with 2 analog inputs, so you can connect the widest range of source components. 

The elegant chassis features a solid brushed aluminum front panel along with luxurious woodtone side panels.

Marantz MusicLink Series

Marantz again amplifies its dedication to pure musical performance with the rebirth of MusicLink, a product series launched in 1990 with the focus on reproducing the music essentials from small-size, rarely-seen design components. The aim is simple: to bring the listener all the emotion and musical detail of the original sound studio, combined with an elegant appearance and luxuriant feel. It is not a coincidence that the creator of the delightful new MusicLink Series is once again Ken Ishiwata.

High Resolution Audio Decoding

Equipped with the reference-class ESS SABRE DAC that's paired with our exclusive HDAM-SA2 technology, the HD-AMP 1 delivers the ultimate high resolution listening experience with today's hi-res audio formats, and is capable of decoding uncompressed audio tracks up to 32-bit/384-kHz as well as DSD tracks (2.6/5.2/11.2-MHz). For optimum D/A conversion with virtually any sampling frequency the HD-AMP1 is equipped with dual master quartz clocks.

Marantz Musical Digital Filtering

Our Marantz Musical Digital Filtering technology utilizes proprietary digital filter algorithms that extract the utmost fidelity with today's high resolution audio tracks, and we provide 2 different digital filtering options so you can easily tailor the sound quality to your exacting preference.

Dual USB Ports

The front panel features a convenient USB port for direct connection to your favorite iDevice or you can connect a USB thumb drive or NAS. The rear panel USB-B port is reserved for direct connection to your PC or Mac, so you can stream your favorite high resolution music tracks, and it features advanced noise isolation to prevent digital noise from degrading the audio fidelity.

USB Auto Charge Function

Listen to your favorite iDevice via the front panel USB port and charge it at the same time. When the HD-AMP1 is put into standby mode your device continues to charge until the battery reaches full capacity and then charging is automatically shut off. The USB port delivers a full 1A current output, the same current output provided by smart device USB chargers.

Advanced Class D Digital Power Amplifier

The cool-running advanced Class D digital power amplifier stage features the latest technologies to deliver wide frequency response (to 50 kHz), wide dynamic range and lowest distortion. Rated at 35 watts per channel into 8 ohms, the HD-AMP1 is fully capable of driving lower impedance speakers and is rated at 70 watts per channel into 4 ohms.

Marantz Current Feedback Technology

First introduced in our legendary Marantz tube amplifiers more than 55 years ago, our Current Feedback technology provides natural warmth and musicality compared to the standard negative feedback method, helping the HD-AMP1 deliver the utmost audio fidelity for the most enjoyable listening experience.

Marantz HDAM-SA2 Technology

Our exclusive Hyper Dynamic Amplifier Module technology was first introduced on our widely acclaimed CD players more than 30 years ago, and today remains a Marantz signature hallmark. Instead of using conventional IC chip op-amps, HDAM technology features precision discrete component circuit blocks that deliver wide frequency response, ultra-fast slew rate and lowest distortion.

The HD-AMP1 features HDAM-SA2 in 3 circuit blocks, including the analog front end, the D/A converter section as well as the dedicated headphone amp block.

Multiple High Resolution Lossless Audio Formats Supported

For maximum enjoyment with the widest range of audiophile high resolution lossless audio tracks, the HD-AMP1 can decode WAV, ALAC, FLAC and AIFF audio file types. It can also decode popular MP3, WMA and AAC tracks as well. 

Via the front panel USB port, the HD-AMP1 supports up to 24-bit/192-kHz high resolution files, while the rear panel USB-B port supports up to 32-bit/384-kHz ultra high resolution tracks.

And, the HD-AMP1 is one of the very few digital audiophile components that can decode all 3 DSD sampling frequencies - 2.6/5.2/11.2-MHz. DSD is the high resolution audio format of SACD.

Dual Analog Inputs

For compatibility with analog audio sources such as a tuner, tape deck or any other source that's not equipped with digital audio outputs, the HD-AMP1 features 2 analog inputs.

Dedicated Headphone Circuit with Adjustable Gain and HDAM-SA2

Designed to deliver the ultimate listening experience with the widest range of headphone types and impedances the HD-AMP1 features a dedicated headphone amplifier block that employs our exclusive HDAM-SA2 technology. There are 3 gain settings available in order to provide optimum matching with the widest range of headphone impedances.

Premium Grade Connectors

The rear panel features gold plated analog and coaxial input connectors along with our exclusive SPKT-1 audiophile grade speaker connectors which feature multi-way connection ability for compatibility with the widest range of speaker cable terminations.

Elegant Chassis with Audiophile Construction

The compact, elegant chassis features a premium brushed alloy front panel with matching knobs along with with our signature Porthole round front panel 2-line display which features 3 dimming levels and off. The stylish woodtone side panels add a luxurious touch and the robust chassis features our rugged dual bottom plate construction for maximum rigidity coupled to aluminum alloy chassis feet for maximum vibration resistance.

这款新品马兰士HD-AMP1是一款高级紧凑型放大器，具有超凡、典雅、经典的外观。但不要让这些误导您，其高级开关放大器技术能迸发出“震耳欲聋”的70W功率（4欧姆负载时），其双晶体时钟和带有马兰士HDAM-SA2模块的分离式DAC后置滤波器能使标准计数的声音如高解析度音频一样令人吃惊。这款新功放还为您提供独特的Marantz Musical Digital Filtering (MMDF)技术，使用两个可选滤波器特性适应不同的品味和音乐。两者都能精心处理数字音频信号所包含的最微小的细节。因为当今的新媒体不仅有44.1kHz/16位解析度–（与CD格式类似），马兰士开发了数字部分以处理高达384kHz/32位解析度和DSD 2.8MHz / 5.6MHz / 11.2MHz的信号。 光纤和同轴数字输入已准备好连接电视机或机顶盒，还有一个USB-B端口，可从您的PC或MAC直接串流音乐。 还可通过前置USB端口连接iDevice。为在连接至计算机时保证质量，我们在USB-B输入端口周围强化隔离措施，以消除计算机所产生高频噪音进入HD-AMP1的机会。时尚的马兰士旋孔显示屏可显示音量、输入、解析度等信息。 前端是实心铝板，由双层底板和复古风格的侧板支撑。欢迎来到紧凑得令人心醉的世界。

Marantz MusicLink系列

马兰士再度借着MusicLink的再生加强其对纯音乐性能的投入，MusicLink产品系列于1990年上市，注重从小尺寸、罕见设计元件再现音乐的本质。目标很简单：为聆听者带来原始录音棚的所有情感和音乐细节，结合高雅外观和丰满的感觉。令人欣喜的新MusicLink系列的设计者又是Ken Ishiwata，这并非巧合。

马兰士音频性能及发烧级D/A转换器
不要被紧凑的外形误导。得益于超稳定电源以及马兰士独创的电流反馈技术，HD-AMP1可为4Ω负载提供2x 70 W的功率，可轻松处理哪怕要求更高的音乐部件。双晶体时钟以及带有该公司备受好评的分离式HDAM前置放大器模块和后置滤波器，使标准音频的声音如同高解析度音频一样令人吃惊。处理能力不低于384kHz/32位的高电流发烧级SABRE数模转换器，能够轻松地再现哪怕最小的细节。

独特马兰士音乐数字滤波(MMDF)
HD-AMP1具备参考级技术的独特马兰士音乐数字滤波(MMDF)功能。对于马兰士来说，使用标准数字滤波器解决方案不是一个选项，因为滤波对于数字输入信号的声音再现至关重要。因此，为了获得专家级技术，公司进行了大量投资，开发出备受推崇的Marantz Music Mastering技术，这一技术导致Premium Range 11系列获奖产品的产生。针对HD-AMP1硬件设计进行调适后，这种新型解决方案称为Marantz Musical Digital Filtering技术。两种可选的数字滤波特性以迎合不同的品味，两者都能精心处理数字音频信号所包含的最微小的细节，将新媒体文件转换成最精细的高解析度播放。

特殊的开关功放原理
HD-AMP1是马兰士首次利用开关功放原理的Hi-Fi产品。到目前为止，开关(D类)功放显示出一定的局限性，导致马兰士音响工程师不会考虑将其用于高级Hi-Fi产品。现在，HD-AMP1将马兰士独特的HDAM技术、开关功放原理与总体反馈环路结合起来，以保证各种扬声器具有一致的性能。与常规开关功放原理相比，HD-AMP1不会在功放模块的输出中提取反馈信号，而是在LC滤波级之后提取信号。若在LC滤波器之前提取反馈时，功放过程并不会考虑所连接的扬声器，因此，功放对所连接的扬声器的反应非常灵敏，其性能会发生变化。采用精心设计的开关功放并在LC滤波器之后提取反馈，所连接扬声器的影响就变得非常小。除了由功放输出阻抗决定的阻尼系数之外，所连接扬声器的阻抗对频率的反应也不太灵敏。功放原理的高转换速率以及高品质LC滤波器自身可确保较宽的带宽与平缓的频率响应。所有这些都通过紧凑的外形造就了超凡的Hi-Fi性能。

现代连接功能
HD-AMP1不仅构建在著名的马兰士音质基础之上，还具有极高的可连接性。光纤和同轴数字输入以及USB-B端口能让您从PC或MAC直接串流音乐，还可通过前置USB端口连接iDevice。为提供更多连接性，马兰士还附带两个模拟输入。USB-B以异步模式工作，不仅支持384kHz/32位高分辨率音频，还支持2.8MHz、5.6MHz甚至11.2MHz的DSD音频，使性能最大化，以最直接的方式欣赏极佳品质。为在连接计算机时能保证质量，马兰士在USB-B输入端口周围强化隔离措施，以消除计算机所产生高频噪音进入HD-AMP1的机会。

高品质耳机输出
针对通过耳机欣赏最喜欢的录音的音乐爱好者，HD-AMP1配备了高品质耳机级以及专用放大器模块HDAM-SA2。为了能与各种耳机配合，可从低-中-高改变增益因数。这样可以驱动低至高阻抗的各种耳机，不会有任何问题。

优雅的外观
毫无疑问，HD-AMP1是为听者耳朵提供的盛宴。其外形也很优美。前端是实心铝板，由双层底板支承，两侧的木装饰板颇有复古风格。时尚的马兰士旋孔显示屏可显示音量、输入、解析度等信息，体现了该公司最卓越的设计水平。这是纯手工工艺。

双层底盘和铝压铸隔离装置
HD-AMP1具有双层底盘，除主底盘外再加一块底板，以抑制外部振动对音质的负面影响。底盘的支脚采用铝压铸隔离装置以进一步吸收外部振动。