AUDIO LTD DX2020 + Mini TX40 RF Set + Lavaliers
AUDIO LTD DX2020 + Mini TX40 RF Set + Lavaliers
Audio Limited Mini TX40 with Sanken COS11
Audio Limited Mini TX40 with Sanken COS11
Audio Limited Mini TX40 (4 pins Lemo connector)
Audio Limited Mini TX40 (4 pins Lemo connector)
Audio Limited Mini TX40 LR03 Battery House
Audio Limited Mini TX40 LR03 Battery House
Audio Limited TX2020 and Mini TX40 Transmitters
Audio Limited TX2020 and Mini TX40 Transmitters
In a nutshell

Audio Ltd DX2020 radio set provided with the new miniT0 transmitter. Introduced about fifteen years ago, Audio Ltd wireless systems have largely contributed to the wide development of radio mike use. Transmitter TX2020, powerful and very autonomous, offers a choice of 32 frequencies ([F1, F2]x16); it accepts line or mike input, and its LF circuit is remarkable with low-cut filter and discrete compression/expansion system. DX2020 is a miniature multifrequency receiver (32), providing "true diversity" reliability, a subcarrier-controlled squelch and a LED indicator for transmitter battery level. Audio Ltd. systems have several other advantages: transmitter and receiver easy switching on and off, sturdy connectors easy to wire, a range of clever accessories developed by VDB - such as L48 or Spider Box. So it's easy to understand why these systems have replaced their competitors on production shoots, documentaries or ENG.

TX2020/DX2020 are multichannel and miniature. Transmitter accepts any type of lavalier, as well as condenser mikes using VDB L-48 accessory, or dynamic mikes with VDB L-dyn adapter. Thanks to its small size, receiver DX2020 is ideal for video camera connection; it is then camera powered via VDB OL-HRSA cable.

The Mini TX40 with the slender size of a credit card, 3.27" out of 1.92" for 0.63" thick, and with the voluptuous shape of a cake of soap, without any angle, all in roundness, is undoubtedly a beautiful success, a small jewel of esthetism and refinement.
There is any on/off switch replaced here by a small infra-red remote control, some already old technics which requires a very short distance to work, not really practical. Nevertheless, its miniature LCD display allows seting up all usual functionnalities available on Audio Ltd transmitters.
The power supply of this transmitter is provided by 2 LR03 batteries which are head-digs housed on both sides of the case. That two batteries ensure an autonomy of approximately 4 hours.
For compatibility reasons, DC Audiovisuel provides the Mini TX40 with a 3 pins Lemo like its competitor the Sennheiser SK 5212. Unfortunatly this 3 pins connector doesn't allow anymore to switch on/off the transmitter when the mike is plugged.

The Mini TX40 has a more linear frequency response diagram than that of the TX2020, with a light increase in the high frequencies, which confers to it some sort of lack of warmess, however less than on the Sennheiser SK 5212.
The range of the Mini is amazing for a transmitter of only 25 mW RF power, really as far as for the TX2020 during our tests in urban environment.

Our recommendations

If the infra-red remote SwitchIR allows to power on the radio mike, the only solution to power off is to take off one battery!

As this radio set is provided with two transmitters on the same frequency, don't forget to switch off the first one when using the second one.

This product is commonly named:

Audio Ltd DX2020, Audio Ltd DX 2020, Audio Ltd DX-2020, Audio Limited DX2020, Audio Limited DX 2020, Audio Limited DX-2020, DX2020, DX 2020, DX-2020, Audio Ltd RSM2020, Audio Ltd RSM 2020, Audio Ltd RSM-2020, Audio Limited RSM2020, Audio Limited RSM 2020, Audio Limited RSM-2020, RSM2020, RSM 2020, RSM-2020, Audio Ltd TX2020, Audio Ltd TX 2020, Audio Ltd TX-2020, Audio Limited TX2020, Audio Limited TX 2020, Audio Limited TX-2020, TX2020, TX 2020, TX-2020, Audio Ltd RX2020, Audio Ltd RX 2020, Audio Ltd RX-2020, Audio Limited RX2020, Audio Limited RX 2020, Audio Limited RX-2020, RX2020, RX 2020, RX-2020, Audio Ltd miniTX, Audio Ltd mini-TX, Audio Ltd mini TX, Audio Ltd TX40, Audio Ltd TX-40, miniTX, mini-TX, mini TX, TX40, TX-40, TX 40

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Technical specifications
Transmitter

TX2020 émetteur de poche UHF multicanal (F1 & F2 x 16), porteuse de 470 à 850 MHz.
Coupe bas (-3 dB / 70 Hz), limiteur à l'émission (DEL) et système de compression/expansion (compander) non débrayables.
8 positions de gain micro (de -36 à -6 dBm), 2 positions ligne 600 Ohms (+10 dBm max.). THD < 0.3% pour entrée mic. à -6 dBm. BP : 50-18 kHz, +-1 dB. Puissance HF jusqu'à 50 mW.

Mini TX40 émetteur de poche UHF multicanal 32 fréquences préprogrammées sur 24 MHz, porteuse de 470 à 1000 MHz.
Coupe bas (-12 dB / 50 Hz), limiteur à l'émission (DEL) et système de compression/expansion (compander) non débrayables.
8 positions de gain micro (2 à 9, de -36 à -6 dBm), 3 positions ligne 600 Ohms (0, 1 et 2, 0 dBm max.). THD < 0.3% pour entrée mic. à -6 dBm.
BP : 50-18 kHz, +-1 dB. Puissance HF jusqu'à 25 mW.
Configuration par télécommande infra-rouge SwitchiR et contrôle par télécommande électromagnétique Control-X.

Power & Dimensions

TX2020 Conn. audio Lemo 6 pts à détrompeur x 1, conn. HF SMA x 1.
Alim interne 1 pile 6LR61 9 V. alkaline (ou lithium) ou ext. 8-11 V.DC (par le conn. Lemo) ; autonomie de 4 à 5 h. (de 10 à 12 h.) suivant accessoires.
Dimensions 8.7 cm x 6 cm x 2.1 cm, masse 0.125 kg sans piles.

Mini TX40 Conn. audio Lemo 3 pts à détrompeur x 1, conn. HF SMA x 1.
Alim interne 2 piles LR03 1.5 V. alkaline ; autonomie de 4 à 5 h. suivant accessoires.
Dimensions 8.2 cm x 4.8 cm x 1.65 cm, masse 0.09 kg avec piles.

Receiver

DX2020 récépteur UHF « true diversity » de poche, multicanal (F1& F2 x 16), porteuse de 470 à 850 MHz.
1 sortie symétrique micro niveau fixe (-30 dBm), 1 sortie asymétrique casque niveau ajustable.
BP : 50-15 kHz ; THD<0.3% (-6 dBm entrée micro émetteur).
Squelch automatique par fréquence pilote, indication de batterie faible émetteur et récepteur, d'absence de porteuse, du récepteur actif (diversity).

Power & Dimensions

Conn. audio Lemo 6 pts à détrompeur x 1 ; conn. HF SMA x 2.
Alim interne 3 piles lithium CR123 3 V. ou ext. 9-14 V.DC (par le conn. Lemo) ; autonomie env. 8 h. selon sorties.
Dimensions 15 cm x 6.5 cm x 2 cm, masse 0.31 kg avec piles.

Options

Récepteurs : OL-2000, sortie micro sym. ; OL-XLR4M+, bretelle sortie micro sym. pour alim. ext. 12 V.DC sur XLR4M ; OL-HRSA, bretelle sortie sym. micro pour alim. ext. par Betacam ; OL-BALHRS, bretelle sortie ligne sym. XLR3M pour alim par Betacam ; OL-EAR, sortie casque jack stéréo F 6.35 mm.

Manufacturer's documents