Audio A10-TX-US User Manual - page 7
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A10-TX-US User Guide
A10-TX-US User Guide
Firmware Updates
Audio Ltd. issues new firmware for the A10-TX-US transmitter to change and introduce new
features to the unit. Make certain to register your Audio Ltd. product at the Audio Ltd. website to
receive firmware update notifications. To update firmware:
1. Download the new firmware update file from the Audio Ltd. website and copy the file onto
an approved microSD card that has been formatted in the A10-TX-US.
2. Insert the microSD card in the unit.
3. Insert fresh AA batteries in the unit.
4. Enter the System menu and choose Update. The unit will indicate the revision of firmare to
update.
5. Confirm that you want to update.
6. Verify the revision of firmware on the unit.
Specifications
A10 U.S. Digital Wireless
System Frequency Range
470–608 MHz
Transmitter Switching
Bandwidth
U.S. Only Models
A10-TX-AU (470–548 MHz)
A10-TX-BU (518–608 MHz)
Modulation Mode
Audio Ltd. proprietary digital RF modulation
Digital Audio Codec
Audio Ltd. proprietary, high-performance digital encoding algorithm
Audio Frequency Response 20 Hz–20 kHz
RF Output Power
10 mW, 20 mW, 50 mW, selectable
Audio Gain Control
Lav setting: 0 dB to +40 dB, 1 dB increments
Line setting: -10 to 16 dB, 1 dB increments
Mic setting (w/ 20 dB pad): 16 to 40 dB, 1 dB increments
Mic setting (w/ no pad): 36 to 60 dB, 1 dB increments
Input Gain
Input Type
Input Impedance
(ohms)
Input Clipping Level
(minimum gain)
Lav
6.8k
+6 dBu
Bal Mic - plus P48 and P12
2.5k
+10 dBu (20 dB pad)
Bal Line
3k
+24 dBu
Low Frequency Cut
Off, 40 Hz, 60 Hz, 80 Hz, 100 Hz, 200 Hz, user selectable
Input Limiter
Analogue, (pre-A/D converter)
Input Type
Microphone or line level, balanced or unbalanced
Bias and Phantom Power
5 V Bias, 12 V or 48 V phantom power
Menu and Controls
OLED menu display, 3 button navigation
Privacy
User settable 4-digit PIN, Audio Ltd. proprietary
Powering
2 x 1.5V LR6 AA size, lithium, NiMH, or alkaline
Operating Temperature
Range
-10 °C to +55 °C
Weight and Dimensions
104 g, 83 x 64 x 18 mm
Input Connector Wiring Diagram
The A10-TX-US LEMO input connector accepts numerous input types. Select the input type in
the Selection Menu before connecting an audio source.
LEMO Connection
Input Type
pin-1
pin-2
pin-3
shell
Two-Wire Lavalier Microphone
shield
open
audio/bias
shield or open
Three-Wire Lavalier Microphone
not compatible
Balanced Microphone
XLR pin-3 XLR pin-2
XLR pin-1
XLR pin-1, shell optional
Balanced Line-Level
XLR pin-3 XLR pin-2
XLR pin-1
XLR pin-1, shell optional
Unbalanced Microphone
earth
signal
earth
earth
Unbalanced Line-Level
earth
signal
earth
earth
ª
Phantom power can be activated only when the shell of the LEMO-3 is connected to pin-3 of
the LEMO-3 connector.
Battery Runtime Chart
This section’s chart shows approximate battery runtime in minutes based on the listed operation.
Operation
Battery Type
NiMH
(2450 mAHr)
Alkaline
Lithium
(Energizer Ultimate)
10 mW (RF Power Low)
8 hr 12 min
4 hr 7 min
12 hr 18 min
20 mW (RF Power Med)
7 hr 29 min
3 hr 56 min
11 hr 31 min
50 mW (RF Power High)
4 hr 33 min
2 hr 21 min
7 hr 57 min
50 mW, 48 V
3 hr 29 min
1 hr 33 min
6 hr 20 min
ª
The 48 V tests were run with a Schoeps CMIT Mini. Other settings used for tests to compile
the chart are: Low Cut Off, Limiter On, 40 dB gain (for 48 V)/30 dB gain (for Lav), freshly
formatted 8G card, Bluetooth On, Blue LED On, and Brightness set to 5.