X2 once again raises the bar in wireless performance and value with the new XDR95-x rack-mount digital wireless microphone systems. The new XDR95-x systems combine outstanding sonic performance and high operational reliability with great convenience and ease of use for the user - all at a phenomenal price/performance value. High-quality mic elements from Audio Technica are featured as standard with each system (see below for description). The Q-DiversityPLUS technology (anti-jam), extended operating range, backward compatibility and versatile connection options make this a very flexible tool for musical performance and recording, and a wide variety of other real-time audio applications. The system features a number of convenient functions on the control surface with no need to scroll through multi-page menus to select or modify system parameters.
With Q-DiversityPLUS, should an undesired RF signal suddenly appear on one of the frequencies, the performance will be not be adversely affected. This is essential when considering today’s wide presence of cell phones/blackberry’s, pagers, text messaging devices, wireless networks and other unforeseen or unknown sources of RF energy. The result is a reliable performance in a multitude of environments.
The XDR957 is an clip-on instrument microphone system (AT-Pro35-X).
Technical Info
Overall System Specifications
Transmission Format: X2 proprietary digital audio transmission
Frequency Response: 10 Hz - 20 kHz
Audio Dynamic Range: Greater than 118 dB
Distortion: 0.03% THD
RF Carrier Frequency: 902 MHz to 928 MHz, FSK, dual frequency transmission
Number of Selectable Frequencies: Five
RF Output Power: 15mw
Audio Output Level: Unity gain with transmitter input
Polarity: Positive voltage at input yeilds positive voltage at output
Transmission Range: 300 feet line-of-sight (may vary due to local conditions)
FCC Approval: Part 15 approved, no user-license required
Operating Temperature Range: –20° to +85° C (-4° to +185° F)
XDT4 Transmitter Specifications
A/D Conversion: 24-bit Delta Sigma, 128 times over sampling
Input Impedance: 1.2 M-ohm
Connectors: 1/8 in. Unbalanced locking connector
Controls: Power On/Off, Channel Select
Five Segment LED Display: Power On, Channel, Battery Life, Audio Level Meter
Dimensions: 4 H x 2.4 W x .66 D in.
Battery Life: 9V alkaline, switching power supply, two modes:
Q-DiversityPLUS mode: ~5.5 hrs in (dual frequency)
Q-Diversity mode: ~6.5 hrs in standard (single frequency)
Weight: 0.25 lbs. (with 9v battery installed)
Housing: Polycarbonate, impact tested to 300 lbs.
XDR4 Receiver Specifications
D/A Conversion: 24-bit Delta Sigma, 128 times over sampling
Output: 2.12V RMS (Unbalanced: 1.8K Ohm)
Connectors: 1/4 in. Unbalanced TRS output 1.8K-ohm impedance, tip= instrument voicing, ring= full bandwidth, sleeve= ground, XLR Balanced 600 ohm
LED Display: Power On, RF, Channel, Diversity, Battery Life, Audio Level Meter
Controls: Power On/Off, Channel/Mode Select
Dimensions (WxHxD): 16.2 x 1.75 x 7.5 in.
Power Requirements: 9V DC 500mA via included AC/DC adapter
Weight: 2.5 lbs (with rack hardware and antenna installed)
Housing: Polycarbonate, impact tested to 300 lbs.
Personal use items that are used at your mouth or in your ear cannot be returned once opened due to health laws. This includes all microphones, guitar talk boxes, ear plugs, and in-ear earphones. 
