APHEX HEADPOD 4 High Performance Headphone Amplifier Owner’s Manual
- June 13, 2024
- APHEX
Table of Contents
HEADPOD 4
HIGH PERFORMANCE
HEADPHONE AMPLIFIER
OWNER’S MANUAL
SAFETY DECLARATIONS
WARNING
SHOCK HAZARD
DO NOT OPEN
TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS DEVICE TO RAIN OR MOISTURE.
DO NOT REMOVE THE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO
QUALIFIED PERSONNEL ONLY.
WARNING: Do not place objects containing liquid on this unit as it is not
designed to protect against spillage. Do not expose this unit to dripping or
splashing of iquids as the uni 1 not designed to protect against these
occurrences.
WARNING: The HeadPod 4 has been tested and meets the FCC, CE and European
Union rules, regulations, and guidelines for use. Do not attempt to modify or
change the HeadPod 4, as this could void the regulatory compliance, which
would place you at risk of losing your authority to operate the HeadPod 4.
WARNING: Do not place objects on top of this unit.
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to par 15 of the FCC rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment enerates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However,
there is no guarantee that incerference will not occur in a particular
installation.
IF this equipment does cause harmful interference to radio o television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures.
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/ TV technician for help.
INTRODUCTION
Providing musicians with proper headphone mixes at proper levels is the first
sep in obraining a quality performance. If the musician Canmor hear propery,
it s Hikely that their iming and pitch wil be off. Vocalists often sing too
loud simply because they cannot hear themselves properly. This means the
singer’s voice will suffer and they will not be able to sing for long periods.
When a musician can hear themselves properly along with the other tracks they
become confident and refaxzd which leads to a great performance. That’s how
important a good headphone amplifier is. The HeadPod 4 contains four
individual stereo power amps. This means that p\u,?gmg in multiple headphones
with different impedance values will not change the quality or volume of the
sound. Each output is completely independent. The headroom of the HeadPod 4
makes high volume levels with low distortion possible. Ear protection is your
personal responsibility at all times. Always sart with a low volume and adjust
it for comfort.
Please be sure to turn down the Volume before plugging in your headphones or
playing any audio source The HeadPod 4 provides analog and digital inputs
allowing it to be used with analog mixers, digital mixers and DAWs. Al inputs
can remain connected with a top panel rotary switch selecting the active one.
INPUT SELECTION
The HeadPod 4 Input Selection knob on the top of the unit allows You to select
one of the three input sources.
Analog 1: Balanced left and right inputs. These use 1/4” TRS connectors.
Connect the balanced main outputs of your mixer or audio interface to these
inputs on the HeadPod 4.
Analog 2: Unbalanced stereo input. This uses one %”, TRS connector. Connect
one J4” TRS cable from the headphone output of your audio interface or mixer
to this input on the HeadPod 4. Even though the signal is still going through
your original headphone
amp, there will be no load placed on it by the HeadPod 4. The headphone load
will be placed on the HeadPod 4.
Digial: S/PDIF cosdl digial inpus. The HeadPod 4 festures & much higher
quality digital to analog converter taen those found in audio interfaces and
digital mixers. By assigning the headphone mix to the 5/PDIF digital output of
your device and plugging in to the S/PDIF input of the HeadPod 4, you will
experience the extremely high quality conversion and headphone amplification.
The LED illuminates when a valid S/PDIF signal is present.
If you experience level differences between the three sources, the output levels of the sources will need to be adjusted.
TOP PANEL
- Input select knob: Selects the input to be used for monitoring.
- Master Volume Knob: This is the input level control. Start with this knob at the middle setting of 12 O’clock. If you turn this knob up 00 high, you may hear distortion
- Headphone Volume Knobs: These knobs control the level of the individual headphone outputs. Turn these knobs all the way down before you plug headphones in
FRONT PANEL
- Headphone output jacks: Four %” TRS headphone jacks are provided. One for each headphone outpu.
REAR PANEL
- Analog Input: Balanced 1/4” TRS analog left and right inputs. Use the left input for a mono, balanced source.
- Analog Input: Unbalanced, stereo, analog 1/4” TRS input Connect the headphone output of your source here.
- Digital Input: Coaxial, S/PDIF digital input. This input will accept sample rates, 44.1kHz, 48kHz, 88.2kHz and 96kHz, +/- 3% It will accept 16 and 24 bit resolution.
- DC Power Supply Input: Only use the included power supply with the HeadPod 4. 12V DC, 1000mA, positive tip. The HeadPod 4 is not compatible with a HeadPod 454 power supply.
- Power On/Off switch.
LIMITED WARRANTY
PERIOD
One year from date of original purchase.
SCOPE
All defects in materials and workmanship.
THE FOLLOWING ARE NOT PROTECTED
Voltage conversions, units on which the serial number has been defaced,
modified or removed. Damage or deterioration resulting from: Installation
and/or removal of the unit; Accident, misuse, neglect, unauthorized product
modification; Failure to follow instructions in the Owner’s Manual, User Guide
or other official Aphex docu- mentation; Repair or attempted repair by anyone
not authorized by Aphex; Shipping damage – claims must be preserted to the
shipper.
WHO IS PROTECTED
This warranty will be enforceable by the original purchaser and by any
subsequent owner during the warranty period, so long as a copy of the original
Bill of Sale is submitted whenever warranty service is required.
‘WHAT APHEX WILL PAY FOR
All labor and material expenses for covered items. Aphex will pay all return
shipping charges if the repairs are coverec by the warranty.
LIMITATION OF WARRANTY
No warranty is made, either expressed or implied, as to the merchantability
and fitness for any particular purpose. Any and all warranties are limited to
the duration of the warrant stated above.
EXCLUSION OF CERTAIN DAMAGES
Aphex liability for any defective unit is limited to the repair or replacement
of said unit, out our option, and shall not include damages of any kind,
whether incidental, consequential, or other- wise. 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 exclusions may not apply to you. This warranty gives you
specific rights which vary from state to state.
SPECIFICATIONS
| Head | Pod 4 |
|---|---|
| Input Z | Bal: 201(52; Unbal: 10K0 |
| Output Z | 100 |
| Maximum Input Level | Bal & Unbal: +24dBu |
| Frequency Response | 10Hz – 120kHz +/- 1dB |
| SNR (Typical) | 100dB |
| Crosstalk, dB: | -80 CP 1KHz, -70 @ 10KFI |
| Maximum Gain | 35dB |
| THD+N, 1KHz | .4.001%, 100mW into 252 |
| SMPTE IMD | 4.001%, 100mW into 250 |
| Weight | 16oz. (0.45kg) |
| Dimensions | 5.5W x 1.9H x 4.5D in. 13.8W x 4.8H x11.4D cm. |
| External Power | 12 VDC, 1000mA 5.5mm x 2.1mm Power Jack Positive Tip |
Aphex reserves the right to continually improve our products, All specifications are subject to change without notice.
SERVICE INFORMATION
Ifit becomes necessary to return this unit for repair, you must first contact
Aphex Systems, Led. for a Return Authorization (RMA number), which will need
to be included with your shipment for proper identification.
If available, repack this unit in its original carton and packing material.
Otherwise, pack the equipment in a strong carton containing at least 2 inches
of padding on all sides. Be sure the unit cannot shift around inside the
carton. Include a letter explaining the symptoms and/or defect(s). Be sure to
reference the RMA number in your letter and mark the RMA number on the outside
of the carton. Ifyou believe the problem should be covered under the terms of
the warranty, you must also include proof of purchase. Insure your shipment
and send it to!
APHEX
3500 N. San Fernando Blvd. Burbank, CA. 91505 USA
PH: 818.767.2929 FAX: 818.767.2641
3500 N San Fernando Blvd. Burbank, CA 91505 USA
PH: 818.767.2929 FAX: 818.767.2641
www.APHEX.com
©2012 Aphex LLC
DWV ENTERTAINMENT company