Samson QH4 Owner's Manual
Owner's Manual
Important Safety Information
AVIS
RISQUE DE CHOC ÉLECTRONIQUE -
NE PAS OUVRIR
WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK) AS THERE ARE NO USER-SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
This lightning flash with arrowhead symbol within an equilateral triangle
is intended to alert the user to the presence of non-insulated “dangerous
voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock.
The exclamation point within an equilateral triangle is intended to alert
the user to the presence of important operating and maintenance instructions in the literature accompanying the appliance.
If you want to dispose this product, do not mix it with general household
waste. There is a separate collection system for used electronic products in
accordance with legislation that requires proper treatment, recovery and recy-
cling. Private household in the 28 member states of the EU, in Switzerland
and Norway may return their used electronic products free of charge to designated
collection facilities or to a retailer (if you purchase a similar new one). For Countries
not mentioned above, please contact your local authorities for a correct method of
disposal. By doing so you will ensure that your disposed product undergoes the necessary treatment, recovery and recycling and thus prevent potential negative effects on
the environment and human health.
Disconnection from the MAINS: The direct plug-in adapter is used as disconnect
device, the disconnect device shall remain readily operable.
Hereby, Samson Technologies Corp., declares that this QH4 is in compliance with
the essential requirements and other relevant provisions of Directive 2014/30/EU.
The declaration of conformity may be consulted at:
http://www.samsontech.com/site_media/support/manuals/QH4_DOC.pdf
FCC Notice
1. 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.
(2) This device must accept any interference received, including interference that
may cause undesired operation.
2. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
This product is capable of causing permanent damage to your hearing if used at
excessive volumes!
To protect your hearing, the QH4 should always be used at as low a volume as
possible. We recommend that you stringently follow the guidelines established by the
U.S. Occupational Safety Health Administration (OSHA) regarding maximum time
exposure at various sound pressure levels:
• Don’t use this product for more than 8 hours at 90 dB SPL
• Don’t use this product for more than 4 hours at 95 dB SPL
• Don’t use this product for more than 2 hours at 100 dB SPL
• Don’t use this product for more than 1 hour at 105 dB SPL
• Don’t use this product for more than 1/2 hour at 110 dB SPL
• Don’t use this product for more than 15 minutes at 115 dB SPL
• Don’t operate at listening levels of greater than 120 dB SPL!
Pay attention to what your ears are telling you! Ringing is a sign that you have set
the gain levels too high and that damage may result. We recommend that you consult
with a qualified audiologist if you exhibit ringing or any other symptoms!
Important Safety Information
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9. 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 fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at the plugs, convenience receptacles, and at the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug the apparatus during lightening storms or when unused for long periods of time.
14. Refer all servicing to qualified personnel. Service 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 has been exposed to rain or moisture, does not operate normally, or has been dropped.
15. This appliance shall not be exposed to dripping or splashing water and that no object filled with liquid such as vases shall be placed on the apparatus.
16. Caution-to prevent electrical shock, match wide blade plug wide slot fully insert.
17. Please keep a good ventilation environment around the entire unit.
18. To prevent injury, this apparatus must be securely attached to the stand in accordance with the installation instructions.
Introduction
Thank you for purchasing the Samson QH4 4-channel headphone monitoring system. The QH4 provides an elegant solution for headphone monitoring,
either on stage or in the studio. The perfect addition to your home recording studio, podcasting setup or just kicking back listening to music, the QH4
delivers super clean, loud, audio fidelity. The QH4 is a specially designed headphone distribution amplifier that allows you to control the level balance
between four individual sets of headphones. Providing over 280mW of power to each headphone channel, the QH4 is compatible with virtually all popular headphone models. And its compact, elegant design, fits into any desktop or mobile application.
In the box, you’ll find a registration card enclosed—please don’t forget to follow the instructions so that you can receive online technical support and so
we can send you updated information about this and other Samson products in the future. We recommend you keep the following records for reference,
as well as a copy of your sales receipt.
Serial number: _________________________
Date of purchase: _________________________
If you have any questions or comments regarding the QH4 or any other products from Samson, do no hesitate to contact us at support@samsontech.com.
With proper care and maintenance, your QH4 will operate trouble-free for many years. Should your QH4 ever require servicing, a Return Authorization (RA) number
must be obtained before shipping your unit to Samson. Without this number, the unit will not be accepted. Please visit www.samsontech.com/ra for an RA number
prior to shipping your unit. Please retain the original packing materials and, if possible, return the unit in its original carton. If your QH4 was purchased outside of
the United States, contact your local distributor for warranty details and service information.
Features
• Four channel stereo headphone distribution amplifier
• Maximum output power on each channel regardless of the number of headphones connected
• Four independent 1/4” stereo headphone channels
• Individual volume control on each headphone channel
• Two balanced 1/4” line input connectors
• Stereo 1/8” Aux input and output jacks for daisy chaining multiple QH4 Headphone Amplifiers together
• Master Mute and Mono-summing switches
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