User Manual
Contents
1. low volume and adjust it for comfort Page 5 Model 454 HeadPod Specifications Model 454 Input Z Bal 20KQ Unbal 10KQ Maximum Input Level Bal amp Unbal 24dBu Frequency Response 10Hz 120kHz 1dB SNR Typical 100dB Crosstalk dB 80 1KHz 70 10KHz Maximum Gain 35dB THD N 1KHz lt 001 100mW into 250 SMPTE IMD lt 001 100mW into 250 Weight 1602 0 45kg Dimensions 5 5W x 1 9H x 4 5D in 13 8W x 4 8H x11 4D cm External Power 12 16VAC 850mA 5 5mm x 2 1mm Power Jack Aphex reserves the right to continually improve our products All specifications are subject to change without notice Page 6 Instruction Manual Limited Warranty PERIOD One year from date of purchase SCOPE All defects in workmanship and materials The following are not covered a Voltage conversions b Units on which the serial number has been defaced modified or removed c Damage or deterioration 1 Resulting from installation and or removal of the unit 2 Resulting from accident misuse abuse neglect unauthorized product modification or failure to follow instructions contained in the User s Manual 3 Resulting from repair or attempted repair by anyone not authorized by Aphex Systems 4 Occurring from shipping claims must be presented to shipper WHO IS PROTECTED This warranty will be enforceable by the original purchaser and by any subsequent owner s during the warranty period so long as a copy2. of the original Bill of Sale is submitted whenever warranty service is required WHAT WE WILL PAY FOR We will pay for all labor and material expenses for covered items We will pay return shipping charges if the repairs are covered by the warranty LIMITATION OF WARRANTY No warranty is made either expressed or implied as to the merchantability and fitness for any par ticular purpose Any and all warranties are limited to the duration of the warranty stated above EXCLUSION OF CERTAIN DAMAGES Aphex Systems liability for any defective unit is limited to the repair or replacement of said unit at our option and shall not include damages of any other kind whether incidental consequential or otherwise Some States do not allow limitations on how long an implied warranty lasts and or do not allow the exclusion or limitation of incidental or consequential damages so the above limitations and exclu sions may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from State to State Page 7 fix Model 454 HeadPod Service Information 1 If it becomes necessary to return this unit for repair you must first contact Aphex Systems Ltd for a Return Autho rization RMA number 2 Pack the equipment in a strong carton containing at least two inches of padding on all sides Be sure the unit cannot shift around inside the carton Include a letter explaining the symptoms
3. Instruction Manual euin oA O ASN 330438 3ZIWINIW SAVMAIV O 9uin oA E x lt 1ndinO uBiH jpuorssojoJd c YSP P fix Model 454 HeadPod LINBAL R IN BAL STEREO N E Es SELECT OR 4 4 WII a Balanced Unbalanced Power TRS Inputs Stereo TRS Inputs 12 16V T POS R NEG S GND T Lt R Rt S GND AC Only Zin 20KQ Zin 10KO AA N ove E Outputs to Stereo Headphones 8 10000 Zout 100 Note On Obtaining More Outputs For additional headphone outputs you can use standard Y adapters to split a balanced or unbalanced source to drive two HeadPods This is preferred over daisy chain ing one HeadPod output to another HeadPod input Y splitting two headphones off one HeadPod output is not recommended Page 2 Instruction Manual Balanced Inputs Active balanced inputs receive separate left and right bal anced or unbalanced sources For unbalanced sources use store bought phone plug to RCA adaptors Otherwise wire tip to hot and ring and sleeve to ground Many times ground loop hum can be eliminated by using only the ring for ground and not connecting ground to the sleeve Unbalanced Inputs The TRS jack accepts a wide range of inputs and input levels You can use suitable cables to connect to a stereo head
4. and or defects Be sure to reference the RMA number in your letter and mark the RMA number on the outside of the carton 3 If you believe the problem should be covered under the terms of the warranty you must also include proof of purchase 4 Insure your shipment and send it to Aphex Systems Ltd 11068 Randall Street Sun Valley CA 91352 PH 818 767 2929 FAX 818 767 2641 Page 8
5. phone output jack for example Stereo line outputs such as found on computers and portable sound players will also interface perfectly with this input SELECT This switch lets you choose which input type you are to use Power Jack Caution 12 16V AC Sources Only At least 6 Watts capac ity is required A DC input may damage your HeadPod and possibly your headphones The warranty does not cover damage caused by an improper power supply Barrel Size 2 1mm x 5 5mm Page 3 Model 454 HeadPod Controls fix HeadPod 454 O Professional High Output Headphone Box Master Volume 1 Volume 2 Volume 3 Volume 4 ALWAYS MINIMIZE VOLUME BEFORE USE 4 Instruction Manual Master Input Gain This control lets you match your HeadPod to the audio source Adjust it so the individual output volume controls are operating at convenient settings If you hear distortion it is probable the Master is set too high while the Volumes are set too low Volume 1 2 3 4 These controls adjust their associated headphone amplifier to allow the desired listening volume The volume can get very loud so start with a low setting Please be sure to turn down the Volume before plug ging in your headphones or playing any audio source The large available headroom of your HeadPod makes high volume levels with low distortion possible Ear protec tion is your personal responsibility at all times Always start with a
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