Cobra ACA-008 User manual

Cobra ACA-008 Monitor Headphone A plifier
© Cobra International Trading Ltd
®
The Cobra Acoustic Professional Monitor Headphone Amplifer has been designed to be reliable, cost effective and built for
continuous, trouble-free operation under rigorous use. Cobra Acoustics unique degree of commitment to research, quality-
control and testing results in continuous improvement of the product. If you need special assistance beyond the scope of
this manual, please contact our technical support department.
Warning
To prevent damage to the product or electric shoc do not expose this device or its power supply to rain or moisture.
Before Use
• Before you start using this supply, please chec if there’s no transportation damage. Should there be any, do not use the
device and consult your dealer first.
• Important: This device left our factory in perfect condition and well pac aged. It is absolutely necessary for the user to
strictly follow the safety instructions and warnings in this user manual. Any damage caused by mishandling is not subject
to warranty. The dealer will not accept responsibility for any resulting defects or problems caused by disregarding this
user manual.
• Keep this boo let in a safe place for future consultation. If you sell the amplifier, be sure to add this user manual.
• To protect the environment, please try to recycle the pac ing material as much as possible.
Safety Instructions:
Caution: To reduce the ris of electric shoc , do not remove the top cover. No user-serviceable parts inside. Refer
servicing to qualified service personnel only.
Caution: Remember excessive loud noise can seriously damage long-term hearing, always eep volumes as low as possible.
• To avoid condensation forming inside, allow the unit to adapt to the surrounding temperatures when bringing it
into a warm room after transport.
• This unit is for indoor use only.
• Don’t place metal objects or spill liquid inside the unit. If a foreign object enters the unit, immediately disconnect the
mains power.
• No na ed flame sources, such as lighted candles, should be placed on the appliance.
• Keep the unit away from children.
• Inexperienced persons should not operate this device.
• Maximum safe ambient operating temperature is 40 degrees. Don’t use this unit at higher ambient temperatures.
• Always unplug the unit when it is not used for a long time or before you start servicing.
• The power supply should always be in perfect condition. Switch the unit immediately off when the power supply cable is
squashed or damaged, or there is any damage to the power supply casing.
• In order to prevent electric shoc , do not open the cover, there are no user serviceable parts inside.
• In the event of serious operating problems, stop using the appliance and contact your dealer immediately.
• Due to safety reasons it is prohibited to ma e unauthorized modifications to the unit.
• Always use the power supply that is supplied with the product. If the power supply needs to be replaced always use one
with the correct power, voltage and connector.
Description
This is a professional monitor headphone amplifier, suitable for connecting a microphone and stereo line level music
source. There are separate microphone and monitor controls, also the stereo input can be switched to be mono if
necessary. There is a choice of either a ¼“ or a 3.5mm stereo output soc ets, so connecting any type of headphone is easy.

I portant Precautions & Instructions
2
Features
• Compact Monitor Headphone Amplifier Ideal for Studio and Stage Applications
• Personal mixer for microphone and mixer.
• Neutri XLR Microphone Input and Thru Conncetor with Ground Lift Switch
• Stereo Monitor Input with Dedicated Monitor Level Control and Mono/Stereo Switch.
• High Power Headphone Outputs with 1/4'' & 3.5mm Stereo Jac Connectors.
• Includes DC 12 V Power Supply.
Operation
❹
❸
❶❷❼❽❾❿⓫
❺❻
Specification
Microphone Input Connector: XLR
Microphone Impedance: Approx 2 Ω (Balanced)
Microphone Max Input Level: -18 dBu
Microphone Gain: 40 dB
Microphone Bandwidth: 15Hz - 25 Hz
Monitor Input Connector: 1/4'' Stereo Jac
Monitor Gain: 10 dB
Monitor Bandwidth: 10Hz - 80 Hz
Headphone Output: ¼” and 3.5mm Stereo Jac
Headphone Impedance: Min. 30Ω
Headphone Max Output Level: Approx +10 dBu (60 mW) @
100Ω Load
Power Supply: 12v DC 500mA
Weight: 0.380 g
Dimensions: 104 x 62 x 47mm
Functions
1. ¼” jac stereo headphone output.
2. 3.5mm stereo jac headphone output.
3. Mono/stereo switch for monitor input.
4. Power LED, lights green when receiving power.
5. Microphone level Control.
6. Monitor Level Control.
7. Monitor input, stereo ¼” jac .
8. Ground lift switch for the microphone.
9. Microphone thru soc et to connect to mixer etc.
10. Balanced microphone input soc et.
11. 12 volt power supply connection.