MyTek Manhattan II Phono Board User manual
Owner's Manual Ver. 1.0 / October 2017
© Mytek 2017
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4Mytek Phono Preamp
Contents
1. Introduction ...........................................................................................5
2. Package Content.....................................................................................5
3. Features .................................................................................................5
4. Quick Start..............................................................................................6
5. Menu ......................................................................................................8
5.1 Menu Navigation ...............................................................................8
5.2 Menu Operation.................................................................................8
6. Technical Specication............................................................................9
7. Warranty ................................................................................................9
User’s Manual 5
1. Introduction
This extension card enables the Manhattan II DAC owners to playback vinyl records by connecting the
gramophone to the DAC directly. There are electronically controlled precision MC, MM solid, and MM
transfomer phono preamplier circuits onboard . Among the multitude of input impedances the board
offers two different RIAA lters and two MC input stages – all settings available from the Manhattan
front panel. The Phono Preamp card is compatible with the Manhattan II DAC only.
All the best,
The Mytek Digital Team
2. Package Content
• The Phono Preamp expansion card
• Two 2-wire cables for connecting the card audio output to the Manhattan II DAC mainboard
• Ribbon for connecting the power and control signals
• Spare 4 x M3 screws for mounting the card on the spacers
• Jumper connecting the ground post wire net to virtual input ground or common analog ground
(default)
3. Features
The extension card offers:
• Compatibility with typical moving magnet (MM) cartridges.
• Compatibility with various moving coil (MC) cartridges.
• Two types of rst stage MC preamplier – solid state and transformer.
• RIAA / RIAA+ analog lters.
6Mytek Phono Preamp
4. Quick Start
1. Start the installation with turning off the Manhattan II DAC and disconnecting it from mains.
2. Unscrew the screws securing the top lid of the converter and remove the top lid.
3. Unscrew four M3 screws that were inserted in the brass spacers in the center of the Manhattan
main PCB (If there was no screws please use attached spares in the next steps).
4. Unplug the ANALOG IN2 L and ANALOG IN2 R wires from the header on the mainboard.
5. Connect two attached wires to this header and the other end to the headers on the Phono card
described OUTL, OUTR.
User’s Manual 7
6. Plug the other end of ribbon attached to card to the header on the mainboard. Be carefull as
there is a capacitor and clock generator very close to the header! Be sure to plug the ribbon fully
into the header.
7. Screw the board to the brass spacers with four M3 screws, remembering to attach the ground
post wire under the upper-right screw (where it was before inserting the card). The board goes
the transformers upside down – descriptions and mytek logo facing up.
8. Plug the cables running from Manhattan RCAs (ANALOG IN2 L, ANALOG IN2 R) to the phono
card headers described INL, INR.
8Mytek Phono Preamp
9. The attached jumper should be plugged into the header described as GND. The recommended
default is position 1 2. If you will experience mains hum after connecting the gramophone one
of the possible solutions is to replug the jumper into 2 3 position.
10. You are ready to go.
5. Menu
5.1 Menu Navigation
Navigation in the DAC menu is exact same as without the Phono Pre card installed.
5.2 Menu Operation
When the Phono extension card is correctly installed the Manhattan II menu is extended by few
additional settings. These settings are present in the menu after the THEATER and before the MQA
setting:
Attention! To prevent damage to your speakers reduce the output
level of your preamp BEFORE switching the ANLG2 Function or
MC MODE options.
5.2.1 ANLG2 Function
If Optional Phono Preamp Board is present analog input number 2 can operate in three modes:
• LINE IN – normal operation.
• PHONO MM – solid state preamp for moving magnet cartridges ; xed input impedance of ~
47k Ohm.
• PHONO MC – preamp for moving coil cartridges ; input impedance and the type of rst stage of
the preamp can be selected.
Note – When PHONO MM or PHONO MC are selected the ANLG 2
input change its name to PHONO and goes to the last position in
the INPUT menu.
5.2.2 MC MODE - This is the setting that matters only for MC cartridges
• SLD 1k – Solid state 1st stage with 1k Ohm input impedance.
• SLD 500 – Solid state 1st stage with 500 Ohm input impedance.
• SLD 100 – Solid state 1st stage with 100 Ohm input impedance.
• X 1k - Transformer 1st stage with 1k Ohm input impedance.
• X 500 - Transformer 1st stage with 500 Ohm input impedance.
• X 100 - Transformer 1st stage with 100 Ohm input impedance.
User’s Manual 9
5.2.3 PHONO FLT – Phono lter setting
• RIAA - default
• RIAA+ - modied RIAA
Note - Normally the analog inputs of the Manhattan II are DC
separated. If you will use only the phono pre input or you are sure
that your other analog sources are DC free you can minimise the
extent of the thump by enabling the jumpers on Manhattan PCB.
6. Technical Specication
Input Gain (f = 1kHz, RIAA) [dB] Input impedance [Ω]
MM Gain 49,1dB ± 1 47k
MC Solid 68,2dB ± 1 1k, 500, 100
MC Transformer 68,2dB ± tbd 1k, 500, 100
7. Warranty
Each individual Phono Preamp undergoes comprehensive quality control and a complete test before
shipping. This Phono Preamp is warranted by Mytek to the original purchaser against defects in
workmanship and materials used in manufacture for a period of two years from the date of purchase.
Faults due to customer misuse, unauthorized modications or accidents are not covered by this
warranty. No other warranty is expressed or implied.
If you suspect that your product is faulty, please contact your local retailer. Prior to shipping customer
or retailer must obtain an RMA number from Mytek for warranty services. Units sent without RMA
number will not be accepted.
Mytek extends affordable repair service for all units manufactured to date that are not covered by
this Warranty. Mytek repair centers are located at Mytek Headquarters in Brooklyn / New York, and in
Warsaw / Poland (at Mytek EU Distribution Ofce).
10 Mytek Phono Preamp
Important Safety Information
• Read, keep and follow these instructions.
• Connect all your devices before powering the unit.
• Do not expose this device to moisture, rain and liquid of any kind.
• Clean only with dry cloth.
• If any form of liquid or a forin object enter the device switch it off and unplug it from the power
source. Do not operate device until the foreign object is removed or the liquid has completly
dried. If doubt please contact Mytek Digital.
• Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including ampliers) that produce heat.
• Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has
two blades with one wider than the other. A grounding-type plug has two blades and a third
grounding prong. The wide blade or the third prong are provided for your safety. If the provided
plug does not t into your outlet, consult an electrician for replacement of the obsolete outlet.
• Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the apparatus.
• Only use attachments/accessories specied by the manufacturer.
• When a cart is used, use caution when moving the cart/apparatus combination to avoid injury
from tip-over.
• Unplug this apparatus during lightning storms or when unused for long periods of time.
• Refer all servicing to qualied service personnel. Servicing is required when the apparatus has
been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture,
does not operate normally, or has been dropped.
User’s Manual 11
Warning
Excessive sound pressure from speakers and headphones can cause hearing loss. In order to use this
product safely, avoid prolonged listening at excessive sound pressure levels.
For the customers in the U.S.A.
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications.
You are cautioned that any changes or modications not expressly approved in this manual could void
your authority to operate this equipment.
All interface cables used to connect peripherals must be shielded in order to comply with the limits for
a digital device pursuant to Subpart B of Part 15 of FCC Rules.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
This product with the CE marking complies with the EMC Directive issued by the Commission of the
European Community. Compliance with this directive implies conformity to the following European
standards:
• EN55103-1 : Electromagnetic Interference (Emission)
• EN55103-2 : Electromagnetic Susceptibility (Immunity)
This product is intended for use in the following Electromagnetic Environments: E1 (residential),
E2 (commercial and light industrial), E3 (urban outdoors), E4 (controlled EMC environment, ex. TV
studio).
Information on Disposal for Users of Waste
Electrical & Electronic Equipment(private households).
The Wheelie Bin symbol on the products and/or accompanying documents
means that used electrical and electronic products should not be mixed
with general household waste. Disposing of this product correctly will help
save valuable resources and prevent any potential negative effects on
human health and the environment.
To properly dispose harmful substances and recycle the product, the
user is obliged to return it at the point of collection of electrical and
electronic equipment waste. For more information please contact your
local authorities, waste disposal units or retailer.
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