MyTek LIBERTY THX AAA User manual

2Mytek Liberty THX AAA™ HPA
Owner's Manual Ver. 1.0
© Mytek Audio 2022
For news, updates, technical support, tips and further product information
please visit our website:
www.mytek.audio
To obtain the tech support please write or call the US ofce for all US
and World support and EU ofce for the European support.
MYTEK.AUDIO MAIN NEW YORK OFFICE
148 India St.
Brooklyn, NY 11222
tel. [phone]
email: [email protected]
MYTEK.AUDIO E.U. BRANCH OFFICE
Slominskiego 15/509
00-195 Warsaw, Poland
tel. [phone]
email: [email protected]

User’s Manual 3
Contents
1. Introduction ...........................................................................................4
2. Package’s Content ..................................................................................5
3. About Liberty THX AAA™ HPA .................................................................5
4. Device Features ......................................................................................6
5. Quick Start..............................................................................................7
5.1 Front Panel .......................................................................................7
5.2 Rear Panel ........................................................................................8
6. Warranty ................................................................................................9

4Mytek Liberty THX AAA™ HPA
1. Introduction
Thank you for choosing the Liberty THX AAA™ Headphone Amplier from Mytek and welcome
to the Mytek user’s community. Over 30 years of experience in building mastering grade
converters and other audio equipment has been utilized to create this analog headphone
amplier.
Liberty THX Headphone Amplier has been designed under the license of THX Corporation.
It uses the THX highest performance THX AAA™ 888 circuit. THX denes it as “World’s
Most Linear Amplier Technology” , the amplier provides ultra precision sound with almost
unmeasurable distortion from the most demanding headphones. The sound along with the
HPA other features make the Liberty HPA the reference tool for music listening and production.
Enjoy your new Liberty THX AAA™ Headphone Amplier!
The Mytek Audio Team

User’s Manual 5
2. Package’s Content
• The Mytek Liberty THX AAA™ HPA
• Power cord
• Owner’s manual
3. About Liberty THX AAA™ HPA
Liberty THX AAA™ Headphone Amplier provides ultra precision sound with almost
unmeasurable distortion from the most demanding headphones. The sound along with the
HPA other features make the Liberty HPA the reference tool for music listening and production.
Liberty THX AAA™ HPA provides robust performance in a small portable 1/3 rack package.

6Mytek Liberty THX AAA™ HPA
4. Device Features
• Power max: 6W
• THD min: -150dB
• SNR: 147 dB (A weighted)
• Inputs: 3xRCA, 1xXLR/1/4” balanced
• Amplier Outputs: XLR 4pin, 4.4mm, 1/4” and 3.5mm
• Preamplier outputs L&R: RCA
• Crossfeed/Mono function: For speaker/radio compatibility
• Volume Control: Premium 27mm analog ALPS attenuator
• Power Supply: Built in oversized 60W linear toroid with automatic voltage switching, Dual Mono
Regulators
• Automatic Gain Sensitivity: Drop for In Ear Monitors
• Dimensions: WxDxH=5.5x8.8x1.74”=140x225x44mm
• Weight: 4lbs, 2kg
• Warranty: 2 years

User’s Manual 7
5. Quick Start
5.1 Front Panel
1. 1/4” Headphone Output
2. XLR Balanced Headphone Output
3. IEM Headphone Output
4. 4.4 MM Balanced Headphone Output
5. Input LEDs section
6. Input / Power button
7. Gain LEDs section
8. Gain button
9. Crossfeed LEDs section
10. Crossfeed button
11. Volume knob
Press and hold the input button (6) to power on/off the Liberty THX AAA™
HPA

8Mytek Liberty THX AAA™ HPA
5.2 Rear Panel
1. Power Socket
2. Stereo Analog Output
3. Balanced XLR Input
4. RCA Input 3
5. RCA Input 2
6. RCA Input 1
QUICK START
Immediate Playback
Connect the analog input source to one of the analog inputs on the back and connect your
headphones. Power up your source and Liberty THX AAA™ HPA. Choose the input you would like to
use by pressing input button. Adjust gain and crossfeed function if necessary.
Attention! To prevent damage, do not turn on your headphones / speakers on
until all connections have been made.
Do not cover ventilation holes! It’s not recommended to stack
Liberty THX AAA™ HPA. It may result in overheating the device!

User’s Manual 9
6. Warranty
Each individual Liberty THX AAA™ HPA undergoes comprehensive quality control and a complete test
before shipping. This Liberty THX AAA™ HPA 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 modications 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 Branch Ofce).
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 Audio
• 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 ampliers) 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 specied 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 qualied 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

10 Mytek Liberty THX AAA™ HPA
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 modications 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.

User’s Manual 11