User manual ASL INTERCOM TR-2 DATASHEET

[. . . ] TR-2 DUAL CHANNEL TRANSFORMER BOX DESIGNED & MANUFACTURED BY: ASL Intercom B. V. [. . . ] The TR-2 transformer box may be very useful when: - Connecting ENG equipment to a sound reinforcement system - Connecting a touring PA system to the `house-PA' - Distributing audio signals over long distances - Connecting non-professional CD or cassette players to a professional system - Connecting line outputs of instruments (keyboards) or backline equipment (amps) to a mixing console OUTPUT SIDE The input side of the TR-2 is equipped with one Neutrik Combo connector (¼" stereo jack + XLR-3 female) and one RCA connector per channel. The Combo and RCA connector of one channel are paralleled. The output side is equipped with one XLR-3 male connector per channel. Each transformer is placed between the input side and the output side. The presence of different connector types allows matching between different standards (e. g. RCA or jack to balanced XLR, or unbalanced XLR to balanced XLR). The ground-lift switch on the output side has 3 positions. In the center position the `grounds' of the connectors on both sides of the box are connected to the metal pieces of the box and to the screen of the transformers. [. . . ] It can't be used for high impedance signals, such as the ones from instrument pick-ups, in which case an active or passive DI-BOX should be used. TECHNICAL SPECIFICATIONS Max Output Level (THD = 0. 5%, f = 50 Hz, Source = 50 ohm, Load = 600 ohm) +26 dBu Frequency Response (Load = 600 ohm, Source = 50 ohm) 12 Hz ­ 40 kHz (+/- 0. 25dB) Total Harmonic Distortion (20 Hz ­ 20 kHz, Source = 50 ohm) <0. 02% at any output level up to 0 dBu <0. 03% at any output level up to +10 dBu Insertion Loss (Load = 600 ohm, Source = 500 ohm) 1. 6 dB Common Mode Rejection Ratio (Load = 600 ohm, Source = 50 ohm) at 50 Hz: 78 dB at 1 kHz: 69 dB at 20 kHz: 42 dB Dimensions 42 x 86 x 132 mm Weight 700 grams ASL reserves the right to alter specifications without prior notice. [. . . ]