Summary of Contents for Glab ALA-1
- Page 3 Dear Customer! Thank you for choosing our product. G LAB Amp Loop Adapter ALA-1 assures correct functioning of the effects connected to the amp effect loop. Adapter enables to adjust the signal level of the amp effect loop to sensitivity of connected effects. Adapter also resolves the high output impedance problem and the problem of ground loop arising from SEND and RETURN cables.
- Page 4 Structure Adapter consists of the JACK cable to be connected to the amp effect loop connectors and the adapter box containing SEND and RETURN connectors for the effects. 1 - power supply indicator 2 - BOOST control 3 - BOOST module on/off switch 4 - module order switches 5 - ATTENUATION module on/off switch 6 - ATTENUATION control...
- Page 5 4 - IN connector Power supply The ALA-1 should be supplied from external regulated 9V DC power supply, with capacity of 50 mA or more. It is recommended to use separated source (e.g. G LAB PB-1) in order to avoid ground loop. Before connecting check if the connector’s polarization is CTR –...
- Page 6 Connecting Signal IN connector should be connected to the effect loop SEND output and signal OUT connector should be connected to the amp RETURN input connector. GROUND LIFT switch enables to cut OUT connector ground what eliminates local ground loop (it is recommended to set in to ON position). Adapter cable is 6 meters long what enables to place the device in pedal board.
- Page 7 Attenuation and boost module settings Attenuation and boost controls are placed on the front panel of the ALA-1. They can be set by using small flat screwdriver. If the effect features gain or peak indicator setting should be started either from the ATTENUATION module (if order switches are set to AT/BO) or from BOOST module (if order switches are set to BO/AT).
- Page 8 Mounting Package contains two Velcro fasteners to fix the device to smooth surfaces. Adapter can be installed in the rack 19” using the GLAB 1U RMS FRONT PANEL.
- Page 9 Technical parameters Dimensions width 110 mm depth 65 mm height 40 mm Weight 0,63 kg Input impedance 400 kΩ 200 Ω Output impedance Maximal level of transmitted signal * 18 dBu (16 dBV, 18 Vpp) Bandwidth * 20Hz to 20 kHz @ - 0,35 dB * - with activated attenuation and boost modules Power supply 9V DC 50 mA...
- Page 10 DO NOT PLACE THIS PRODUCT INTO THE WASTE CONTAINER ! This device is marked with a cross-lined waste container symbol according to 2002/96/EU Directive on Waste Electric and Elec- tronic Equipment. Such marking informs that after usage equipment can not be trashed together with other household waste.
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