eCOMPACT4BT ANALOGUE PREAMPS AND MIXERS 4-channel Bluetooth® mixer USER MANUAL
CONTENTS 1. IMPORTANT WARNING .......................................................................................... 3 2. IMPORTANT SAFETY INSTRUCTIONS ....................................................................... 4 3. IMPORTANT NOTE ................................................................................................. 5 4. INTRODUCTION...................................................................................................... 5 5. INSTALLATION ............................
1. IMPORTANT WARNING The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
2. IMPORTANT SAFETY INSTRUCTIONS 1. 2. 3. 4. 5. 6. 7. Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8. Do not install near any heat sources such as radiators, stoves or other apparatus that produce heat, including amplifiers. 9.
3. IMPORTANT NOTE Thank you for choosing our 4-channel Bluetooth® eCOMPACT4BT mixer. It is VERY IMPORTANT to carefully read this manual and to fully understand its contents before any connection in order to maximize your use and get the best performance from this equipment. To ensure optimal operation of this device, we strongly recommend that its maintenance be carried out by our authorised Technical Services. The eCOMPACT4BT comes with a 3-year warranty. 4.
Main features: 4-channel analogue mixer, one channel with adjustable Talkover Desktop or 19" rack installation 4 microphone inputs, one of which on front panel with a combo connector 48 V phantom power for microphone inputs (rear panel selector) 6 RCA stereo line inputs, and one stereo mini-jack line input on front panel Class 1 Bluetooth® wireless connection (up to 25 m range under ideal conditions) Source selector on each channel All microphone inputs have a select
5. INSTALLATION 5.1. Location, set up and ventilation The eCOMPACT4BT has been specially designed to be used both as a desktop mixer and a 19" rackmount unit, occupying three rack spaces with optional rack mounting kit 3URMKIT. The eCOMPACT4BT does not require ventilation due to its low power consumption, however, it is recommended that the unit not be completely enclosed or exposed to extreme temperatures.
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1. 2. 3. 4. 5. GAIN: gain control of the channel input signal. Available on all 4 mixing channels. TREB: high frequency control. Available on all 4 mixing channels. MID: mid frequency control. Available on all 4 mixing channels. BASS: low frequency control. Available on all 4 mixing channels. ALT OUT SEND: switch to send the channel to the ALT OUT mix bus. Allows to create a sub-mix of selected channels, with independent volume control. 6. PAIR: pairing switch for Bluetooth® connection 7.
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1. POWER: unit's power switch. Next to it is the external power supply connector and a tab for securely fastening the power supply cable. 2. LPF: SUB OUT low-pass filter switch. Filter with fixed cut-off frequency of 150 Hz. 3. SUB OUT: balanced mono output with XLR connector. 4. ALT OUT: unbalanced stereo output with RCA connectors. 5. MAIN OUT: balanced stereo output with XLR connectors. 6. PHANTOM: phantom power (48 VDC) switch for microphone inputs. 7. INPUTS 1 - 4: mixing channel audio inputs.
8.1. Audio Input Connections The eCOMPACT4BT features the following audio inputs, with the following connection types: INPUT 1: unbalanced stereo line input, with RCA connectors on rear panel and 3.5 mm stereo mini-jack connector on front panel. Bluetooth® wireless audio connection (see chapter 8.2 for more information on how to connect a Bluetooth® device). Use one of the line input connectors to connect the audio source. 1.
INPUT 2 and INPUT 3: unbalanced stereo line inputs with RCA connectors. Mono and balanced microphone inputs with 3-pin XLR connector. All of them on the rear panel. 3. INPUT 2 and 3 connections on rear panel o 3-pin XLR connector: Hot or direct signal Cold or inverted signal Ground > > > 4.
INPUT 4: mono and balanced microphone input, with 3-pin XLR connector on rear panel and COMBO connector on front panel. Unbalanced stereo line input with RCA connectors on rear panel. o COMBO connector: XLR TRS jack Hot or direct signal > Pin 2 Tip Cold or inverted signal > Pin 3 Ring Ground > Pin 1 Sleeve 5. TRS jack connector On the rear panel of the unit, a PHANTOM ON/OFF switch allows supplying inputs 2 to 4 with phantom power (48 VDC) for microphones that require it, usually condenser mics.
8.2. Bluetooth® connection eCOMPACT4BT has a Bluetooth® wireless audio connection (class 1, range approx. 25 meters in ideal conditions) through which you can connect mobile devices such as smartphones or tablets for audio playback. To connect: 1. On channel 1, select the Bluetooth® input, indicated by the logo, see figure ¡Error! No se encuentra el origen de la referencia.. The PAIR LED will start flashing. 2. On your mobile device, go to the Bluetooth® settings, and select the eCOMPACT4BT device.
8.3. Audio output connections The eCOMPACT4BT has the following audio outputs, with the following connection types: MAIN OUT: main output. Balanced stereo line outputs with 3-pin XLR connector on rear panel. 6. MAIN OUT connectors o 3-pin XLR connector: Hot or direct signal Cold or inverted signal Ground > > > Pin 2 Pin 3 Pin 1 7.
ALT OUT: alternative output or sub-mix. Unbalanced stereo line output with RCA connectors on rear panel. 8. ALT OUT RCA connectors SUB OUT: sub-bass or auxiliary output (monitor, zone, etc.). Balanced mono line output with 3-pin XLR connector on rear panel. 9. SUB OUT sub-bass connector NOTE: the circuit emulates a balancing transformer, so if you want to use the SUB OUT in unbalanced mode, the unused output pin must be short-circuited to ground.
NOTE: adjust the headphone output volume to minimum before connecting the headphones to avoid damaging your hearing. 10. Front panel headphone output If a balanced output channel is connected to an amplifier or audio device with balanced input, the + (Pin 2), − (Pin 3) and (Pin 1) terminals must be connected point to point between the two devices. If you connect a balanced output channel to an amplifier or device with unbalanced audio input, leave the − terminal (Pin 3) unconnected. 11.
8.4. Other connections USB CHARGE: type-A USB port for connecting mobile devices. This port is designed for device charging only (5 VDC). Very useful if you are using a device connected to eCOMPACT4BT using Bluetooth® connection and need to recharge the battery. This avoids having to connect the Bluetooth ® audio device to a distant power outlet at the risk of weakening the Bluetooth® audio transmission. 12.
9.2. Monitoring The eCOMPACT4BT is equipped with an audio and visual monitoring system through headphones and VU meter. The PHONES OUT signal is the same as that sent to MAIN OUT and SUB OUT (main mix bus signal). You can select the signal to be displayed on the VU meter between the main mix bus signal (present on MAIN OUT and SUB OUT) and the ALT OUT mix bus signal. 9.3. Channel gain and equalization These controls allow you to adjust input sensitivity level and tone for each channel individually.
9.4. Channel indicators Each of the 4 input channels has two indicators. The green SP (Signal Present) LED indicates the presence of a signal at the input selected with the active input selector. If this LED does not light up when an audio source is delivering a signal, make sure that the equipment has been properly connected, that the source you want to hear is selected - channel source selection switches -, and/or that the GAIN control is correctly adjusted.
10. CONSIDERATIONS 10.1. Ground loops Always be careful not to interconnect grounds from the signal sources entering the mixing console and from all devices connected to its outputs – ground must never come from different devices, otherwise humming could occur and degrade the sound quality. The cable shields, if connected to the chassis, must never be connected to each other. This prevents the formation of ground loops. 10.2.
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All product characteristics are subject to variation due to production tolerances. NEEC AUDIO BARCELONA S.L. reserves the right to make design or manufacturing changes that may affect these product specifications. Motors, 166‐168 08038 Barcelona ‐ Spain ‐ (+34) 932238403 information@ecler.es www.ecler.
