AUDIO ANALOGUE maestro STEREO LINE PREAMPLIFIER OWNER’S MANUAL MANUALE D’ISTRUZIONI
INTRODUCTION AUDIO ANALOGUE does not take any responsibilities in the following cases: Whenever the operational procedures related to the use and the maintenance of the equipment as described in this manual are not respected. Whenever damages to the equipment occur because of fixing and modifications made form non-authorized staff or because of normal deterioration of the system.
PREMESSA AUDIO ANALOGUE non accetta responsabilità nei casi in cui: Le procedure operative di utilizzo e manutenzione dell’apparato descritte nel manuale non siano rispettate. I danni si verifichino in seguito a riparazioni o modifiche dell’apparato eseguite da personale non autorizzato o a seguito di normale deterioramento dell’apparato.
Dear Audiophile, Congratulations and thank you for choosing Maestro Line Preamplifier. You’re now the owner of a unit that establishes a new reference in the category of high-quality and high-versatility stereophonic products. Maestro Line Preamplifier provides circuital solutions with no compromises and features capable to satisfy advanced users’ demands.
Features Double-chassis to separate the line section from the digital and power supply section. 400Hz synthesis system analogical power supply with two thoroidal resistors and two different power lines for each channel. Thoroidal transformer digital power supply. Power plug for external phono amplifier. Analogical circuits with separated components, large pass band and low counter-reaction.
3 4 9 1 6 7 2 8 5 Front panel 1) Multifunctional and input selector. It allows choosing the sound source visualizing it on the display. It also allows sending the sound source to the tape out and modifying set-up settings. 2) Volume control. Fading level is shown on the display. 3) “Tape” button. When this button is pressed, the input selector works as tape bar selector. On the display is shown the source available on the analogical tape out.
Chassis A back panel 1) IEC standard power inlet. Connect here the provided power cord. 2) Fuses(T2A). 3) RS-232 serial port. 4) 25-pin connector for digital control signals. 5) Power plug for external phono amplifier. 6) 4-pin XLR connector for left analogic power supply. 7) 4-pin XLR connector for right analogic power supply. Chassis B back panel 1) 25-pin connector for digital control signals. 2) 4-pin XLR connector for left analogic power supply. 3) 4-pin XLR connector for left analogic power supply.
Descrizione del pannello posteriore telaio A 1) Presa di rete a norma IEC. Collegare il cavo di alimentazione di rete fornito in dotazione. 2) Fusibili(T2A). 3) Porta seriale RS-232. 4) Connettore a 25 poli per i segnali digitali di controllo. 5) Presa di alimentazione per amplificatore phono esterno. 6) Connettore XLR a 4 poli per alimentazione analogica left. 7) Connettore XLR a 4 poli per alimentazione analogica right.
Remote controller 1) “STBY”. Standby. It activates/deactivates standby mode. 2) “VOL+/VOL-“. Volume setting. 3) “MUTE”. It activates/deactivates muting 4) “IN+/IN-“. It allows source selection and navigation through the set-up. 5) “SET”. It activates the set-up. Descrizione del telecomando 1) “STBY”. Stand-by. Attiva e disattiva lo stand-by. 2) “VOL+/VOL-“. Regolazione del volume. 3) “MUTE”. Attiva e disattiva il mute. 4) “IN+/IN-“.
Unpacking and checking package Carefully open the package to avoid damaging the content. The package should contain: • • • • • • 1 Maestro Line preamplifier 1 remote controller 1 power cord 2 AAA batteries (placed in the remote controller) 3 connectors for sections linking (two XLR and one DB25 connectors) 1 instruction manual If one of the items listed above is missing, please contact your Audio Analogue retailer. After extracting the smallest items from the package, pull out the unit carefully.
Plugging and connecting Maestro Line Preamplifier First of all, you have to link the two sections of the unit using the three provided connectors. Before connecting Maestro Line Preamplifier to the sound source and to the amplifier, please be sure that all the units are unplugged from wall outlets. Connect the sources to the Maestro Line Preamplifier inputs you want to use. Please use only high-quality cords with gold/rhodium-plated connectors.
Volume settings and silencing (mute) The volume knob on the front panel and the Vol+/Vol- buttons on the remote controller change the general sound level. It means that the volume of the two channels is altered identically. It is possible to modify the relative level of each channel changing the balance option in the setup. The mute buttons on the front panel and on the remote controller allows lowering the sound level by 20dB.
Notes on inputs bypassing Set-up has an option that allows sending the input signal to the outputs to bypass the amplifier when the unit is in standby mode. It is possible to choose among the 8 available outputs. This option is useful when you want to integrate the preamplifier into a multi-channel system, so that you can connect it to high-quality stereophonic sources while connecting the multi-channel processor to audio/video sources.
Set-up navigation Due to the reduced size of the display, only one option at a time is shown. Use the remote controller to navigate through the different options, to choose the desired one and also to modify the parameters value. To select the desired option, repeatedly press the “SET UP” button on the front panel or the “SET” button on the remote controller.
Specifications In/out configuration Unbalanced input Unbalanced output Parameter Channels: Line gain Frequency response: Measurement conditions 20Hz-20kHz Attenuation –10dB Attenuation –20dB Attenuation –30dB Attenuation 0dB Band limits 0Hz-48kHz 22Hz-22kHz 20Hz-20kHz Attenuation –10dB Attenuation –20dB Attenuation –30dB Attenuation 0dB Band limits 0Hz-48kHz 22Hz-22kHz 20Hz-20kHz Attenuation –10dB Attenuation –20dB Attenuation –30dB Attenuation 0dB Band limits 0Hz-48kHz 22Hz-22kHz 20Hz-20kHz Attenuati
Specifiche Tecniche Configurazione in/out Ingresso sbilanciato Uscita sbilanciata Parametro Numero di canali: Guadagno stadio linea Risposta in frequenza Condizioni di misura 20Hz-20kHz Attenuazione –10dB Attenuazione –20dB Attenuazione –30dB Attenuazione 0dB Limiti di banda 0Hz-48kHz 22Hz-22kHz 20Hz-20kHz Attenuazione –10dB Attenuazione –20dB Attenuazione –30dB Attenuazione 0dB Limiti di banda 0Hz-48kHz 22Hz-22kHz 20Hz-20kHz Attenuazione –10dB Attenuazione –20dB Attenuazione –30dB Attenuazione 0dB Lim
TROUBLESHOOTING Symptom Display is off No sound Cause Power cord incorrectly plugged Burned-out fuses Display is on No sound Volume knob completely rotated anticlockwise Faulty or incorrectly plugged connectors between frames Power amplifier is off Faulty or incorrectly plugged connectors between Maestro Line Preamplifier and the amplifier Faulty or incorrectly selected sound source Recording is impossible Faulty or incorrectly plugged connectors between Maestro Line Preamplifier and the selected
RICERCA GUASTI Sintomo Rimedio Controllare che il cavo di alimentazione sia ben inserito nell’amplificatore e nella presa di rete Fusibili di rete bruciati Controllare i fusibili nel portafusibili (dopo aver staccato il cavo dalla presa di rete) sopra la presa IEC ed eventualmente sostituire con altri dello stesso tipo Display acceso Manopola del volume ruotata in senso Ruotare la manopola in senso orario Nessun suono antiorario Cavi di collegamento tra i due telai Controllare che tutti e tre i cavi ch
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