D/A CONVERTER - PREAMPLIFIER - HEADPHONE AMPLIFIER
Mytek Manhattan

Mytek Manhattan


In terms of its external appearance, as already mentioned, the Manhattan has made several steps in relation to the rather spartan 192DSD. While aesthetics is a subjective issue, of course, choices made by Mytek, including a low height but otherwise hefty enclosure, a large screen and an easy to use interface, should be considered as positive design aspects. Positive, in my opinion, is also the choice of the embossed finishing on the front and side panels and the positioning of a large logo on the top. The overall result is unique and stylish. The possibility to use spike-like support points and the thin, well-designed Apple remote control are also notable add-ons to the whole package. What is certain, is that Manhattan can be comfortably exposed to full view in any aesthetically sophisticated home environment. Additionally, the user can choose between two colors, black (the color of this review sample) and silver.

Mytek Manhattan





Mytek's Manhattan is an aesthetically interesting and quite large device.

Connectivity features are, in fact, probably more than the average home user needs. In terms of conventional digital inputs, there is a selection of coaxial (with RCA connector), optical and AES/EBU inputs and there is also the possibility to use devices with SDIF/DSD (double BNC) output. File streaming can be accomplished either via Firewire or USB (both 1.1 and 2.0 are supported, through separate ports). The converter supports digital signals up to 32bit/384kHz, and DXD for the PCM format, and up to DSD256 for the DSD format through the USB 2.0 port. Depending on the capacity of the relevant standard, Manhattan also supports streams up to 24/96 through USB 1.1 to 24/192 over the other conventional digital inputs and, also, supports DSD128 through Firewire. The user is additionally able to up-sample all PCM signals to 24/192.
Manhattan offers two sets of analog outputs, a single-ended (RCA) and a balanced (XLR) pair, the level of which can be set either in analog or in the digital domain (a choice made through the menu). The level control circuit can be, also, bypassed completely, if the user chooses so. Those who want to use the device as a preamplifier can use the three line inputs provided (two single-ended and one balanced) or even use the special module that Mytek offers to convert one of the single ended inputs to a phono cartridge compatible preamp. To connect a headphone set, there are two standard 1/4-inch TSR jack outputs located on the front panel. A wordclock input/output BNC pair is also included to enable connection to a centrally distributed clock signal.

Mytek Manhattan



The textured surface of the front panel and the push buttons with the same finish but in a different color, make the DAC stand out. The user interface is simple and pleasant.

Mytek Manhattan



The large and bright display (brightness is, however, adjustable) is quite visible and enables the user to control the DAC from a certain distance without any difficulty.

Inside the device, one encounters a disciplined and of high-quality PCB, apparently without any excessive design solutions or extravagant component choices. In general, Mytek admittedly has preserved the 192DSD architecture, which is justified, of course, by the performance of this model. The digital part is built around two FPGAs (from Altera and Xilinx) and an asynchronous sample rate converter (AD1896 from Analog Devices). As a front end, for the management of digital input signals, three different interfaces are used. A TAS1020 from Texas Instrument for the USB 1.1 port, a Cypress CY7C68013 for USB 2.0 and a pair of chips from Dice and Texas (TCD2210/TSB42) for the Firewire port.

Mytek Manhattan

A jog-dial-like wheel controls two different operating modes for the volume setting, offering 1dB steps in the analog domain and 32-bit control in the digital domain. There is, also, the possibility to fully bypass it. Manhattan offers two headphone outputs.

Mytek Manhattan

The DAC features a complete set of digital inputs including three standard type, two USB, one Firewire, and an SDIF DSD. The photo also shows the Word clock input and output pair and the single-ended analog output.

As a D/A conversion chip, Mytek has retained the ES9016S Sabre from ESS. This is an eight channel component of which the available channels are connected in a parallel/balanced topology to improve linearity. The analog output stage is a part of the device for which the company does not give many details. Optically, at least, it appears to be quite similar in structure to the 192DSD circuit. Manhattan also includes a headphone amplifier with a dual mono architecture, and the capacity to provide 1600mA through an output impedance of 0.25 Ohm. This appears to be more than enough to drive any headphone set with reasonable impedance and allows Mytek to offer two outputs (through 1/4-inch TSRs, as already mentioned) with opposed electrical phase and separately adjustable level.
Points, where major differences appear in comparison with the 192DSD do exist however and are focused on the clock circuit and in the power supply. Clocking features Mytek's Femto Clock technology (used in their series of professional equipment) and induces very low jitter (below 1pS, the company says), forming the basis for a device with very good performance in this context. The power supply includes two separate circuits (with separate transformers), one for the digital and one for the analog part of the device.

Mytek Manhattan




Apart from the single ended, there is an additional balanced analog output and three analog inputs. Manhattan can be used as a conventional preamplifier.

Mytek Manhattan




Inside the DAC, there is a clear presence of a large power supply with high capacity filters (2x33.000uF and 6x15.000uF) and two transformers.

Mytek Manhattan

The digital front end of the device features two FPGAs from Altera and Xilinx, an Analog Devices asynchronous sample rate converter and chips from Cypress, Texas Instruments and Dice for handling the digital signals.

Mytek Manhattan

At the top, the ESS d/a conversion chip. At bottom-right, the analog stage for which the company does not give any details, although it appears quite similar in structure with that of the DSD192.


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