Sony Pha3 Owners Manual
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Portable Headphone Amplifier PHA-3 About the supplied manuals The following three manuals come with the headphone amplifier. Help Guide (this data) Operation manual on the Web, which can be accessed by a PC or smartphone, provides the detailed information on how to use the headphone amplifier and troubleshooting, etc. Start Guide (enclosed paper) Provides basic information on how to connect or use the headphone amplifier. Reference Guide (enclosed paper) Provides precautions and specifications. 4 -547 -524 -11(4) Copyright 2014 Sony Corporation Help Guide How to Use 36
Portable Headphone Amplifier PHA-3 How to use the silicone belts You can fasten a connected device to the headphone amplifier using the silicone belts (supplied). 1. Mount the connected device on the headphone amplifier. 2 . Bind the headphone amplifier and the connected device using the silicone belt with its wider part placed under the bottom of the headphone amplifier. 4 silicone belts are supplied. If the connected device does not fit on the rubber rails If the audio device does not mount on the rubber rails of the headphone amplifier, place the protection sheet (supplied) between the headphone amplifier and the audio device to avoid scratching. Note Help Guide How to Use 37
Be careful not to pinch your finger when binding the headphone amplifier and the connected device with the silicone belt. It may cause injury. Sony is not liable for damage to an audio device caused by using the silicone belts. The silicone belts are not guaranteed to fasten all audio devices. Do not over -stretch the silicone belt. It may cause a malfunction. Stop using the silicone belt if it is cracked. 4 -547 -524 -11(4) Copyright 2014 Sony Corporation 38
Portable Headphone Amplifier PHA-3 What you can do with the headphone amplifier Balanced output support for clean signal ground * for balanced output, a balanced-connection headphone cable and balanced headphones are needed. Selected parts for high quality sound (ES9018/TPA6120) USB Audio PCM 384 kHz/32 bit, DSD compatible WALKMAN, Xperia, iPhone/iPad/iPod Digital connection All content you hear is enhanced. The DSEE HX upscales the existing sound file to near High-Resolution sound quality, making you feel as though you are really there at the recording studio or concert. High-quality analog circuit with dedicated master clock High-quality line-out operation amplifier (LME49860) Low-resistance high-quality rotary volume for clear and pure sound * Works as a normal headphone amplifier. 4 -547 -524 -11(4) Copyright 2014 Sony Corporation Help Guide How to Use 39
Portable Headphone Amplifier PHA-3 About High-Resolution Audio format files High-Resolution Audio, which is typically 96 kHz/24 bit or higher, is made by digitally sampling an original analog audio source. The number of times at which sampling is performed (in one-second increments) is called the sampling frequency, which is expressed in hertz or “Hz.” Digitizing refers to the audio process where the sampled signal is converted (or quantized) into binary digits, consisting of 1’s and 0’s, and expressed as “bits”. The higher the number of bits, the closer the sample is to the original source. CDs are standardized at 44.1 kHz/16 bit, but there is no single standard for High-Resolution Audio. An alternative way of digitizing an analog source is a method called DSD (Direct Stream Digital) which captures sound information as a sequence of single bit values with an extremely high sampling rate of either 2.8 MHz or 5.6 MHz. This is approximately 64 or 128 times the sampling rate of CD audio and is simply known as DSD 2.8 MHz or DSD 5.6 MHz. For some engineers, this is the closest a digital file sample can get to an original analog source. 4 -547 -524 -11(4) Copyright 2014 Sony Corporation Help Guide How to Use 40
Portable Headphone Amplifier PHA-3 About the balanced connection Unbalanced connections have commonly been used for portable audio devices. This connection method works as L+/R+ signals go through an amplifier and L-/R- signals go through the ground. Devices with unbalanced output are normally less expensive and easy to handle compared with the balanced output devices, but unbalanced connections cannot prevent noise occurrence since noise can be picked up if there is a difference in voltage potential on the ground of the chassis of your device. One of the biggest advantages of balanced connection is that it can stabilize the voltage potential by transmitting the signals as the opposite phase, L+/L- and R+/R -, to an amplifier. Not only does this prevent the signal distortion caused on the ground, but also eliminates noise and hum with opposite polarities relative to each other. As a result of this, balanced connections brings you clear sound with noiseless signals and improved crosstalk. 4 -547 -524 -11(4) Copyright 2014 Sony Corporation Help Guide How to Use 41
Portable Headphone Amplifier PHA-3 Parts and controls Front and left side Rear side 1 . GAIN select switch 2 . DSEE HX select switch 3 . Hi -Fs (High Sampling Frequency) indicator 4 . DSD indicator 5 . POWER/CHG (power/charge) indicator 6 . (headphones) NORMAL jack 7 . (headphones) BALANCED L/R jack Help Guide How to Use 42
8. Power/volume knob 9. INPUT select switch 10 . OUTPUT select switch 11 . Xperia/WALKMAN/PC (USB AUDIO) connecting port 12 . iPhone/iPad/iPod connecting port 13 . OPT IN port 14 . AUDIO IN/LINE OUT jack 15 . DC IN 5V port Related Topic About the indicators 4 -547 -524 -11(4) Copyright 2014 Sony Corporation 43
Portable Headphone Amplifier PHA-3 About the indicators POWER/CHG (power/charge) indicator When the headphone amplifier is being charged, the indicator flashes/lights up in red. When the headphone amplifier is turned on, the indicator flashes/lights up in green. While the headphone amplifier is being charged Turns off The headphone amplifier is fully charged. Lights up (red) The headphone amplifier is being charged. Flashes (red) The headphone amplifier is not being charged properly. When the headphone amplifier is not in the battery charge status You can check the battery level by the number of times that the indicator flashes when the headphone amplifier is turned on. Turns off The headphone amplifier is not turned on. Lights up (green) The headphone amplifier is turned on. Flashes three times (green) The battery is substantially charged. Flashes twice (green) The battery is half charged. Flashes once (green) The battery level is low. It is necessary to charge the battery. Always flashing (green) If you continue to use the headphone amplifier without charging, it will turn off in a few minutes. Hi-Fs (High Sampling Frequency) indicator Help Guide How to Use 44
Turns off The headphone amplifier is being input with; the linear PCM digital signal of sampling frequencies under 48 kHz the analog signal Lights up The headphone amplifier is being input with; the linear PCM digital signal of sampling frequencies not under 48 kHz the DSD digital signal of the High-Resolution Audio format DSD indicator Turns off The headphone amplifier is being input with; the linear PCM digital signal the analog signal Lights up The headphone amplifier is being input with the DSD signal of the High-Resolution Audio format. 4 -547 -524 -11(4) Copyright 2014 Sony Corporation 45