Audio Analogue Maestro STEREO LINE PREAMPLIFIER manuale d’uso

AUDIO ANALOGUE maestro STEREO LINE PREAMPLIFIER OWNER’S MANUAL MANUALE D’ISTRUZIONI[...]

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3 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 modificat ions made form non-authorized staff or because of [...]

4 PREMESSA AUDIO ANALOGUE non accetta responsabilità nei casi in cui: Le procedure operative di utilizzo e manutenzione de ll’apparato descritte nel manu ale non siano rispettate. I danni si verifichino in seguito a riparazioni o modifiche del l’apparato eseguite da personale non autorizzato o a seguito di normale deterioramento dell’apparat[...]

5 Dear Audiophile, Congratulat ions and thank you for choos ing Maestro Lin e Preampl ifier. You’re now the own er of a unit that establishes a new reference in the cat egory of high-quality and high-ver satility stereophonic pr oducts. Maestro Line Preamplifier provides circu ital solutions wit h no comprom ises and featur es capable t o satisfy[...]

6 Features Double-chass is to separate the l ine section from the di gital and power supp ly section. 400Hz synthesis system analogical power supply with two thoroidal resistors a nd t wo different power lines for each channel. Thoroidal trans former digital power su pply. Power plug for extern al phono amplifier. Analogical circuits with s eparate[...]

7 1 2 34 65 78 9 1 2 34 65 78 9 Front panel 1) Multifunctional an d input selector. It allo ws choosing the s ound source visua lizing it on the dis play. It also allow s sending the soun d source to the tape o ut and modifying set- up settings. 2) Volume control. Fadi ng level is shown o n the display. 3) “Tape” button. When this button is pre[...]

8 Chassis A back panel 1) IEC standard power inlet. Con nect here the provide d power cord. 2) Fuses(T2A). 3) RS-232 serial port. 4) 25-pin connect or for digital control sig nals. 5) Power plug fo r external phono amplifier. 6) 4-pin XLR conn ector for left an alogic power supply. 7) 4-pin XLR connect or for right analogic p ower supply. Chassis B[...]

9 Descrizione del pannello posteriore telaio A 1) Presa di rete a norm a IEC. Collegare il cavo di alimentazione di re te fornito in dotazione. 2) Fusibili(T2A). 3) Porta seriale RS-2 32. 4) Connettore a 25 p oli per i segnali d igitali di controll o. 5) Presa di alime ntazione per a mplificatore ph ono esterno. 6) Connettore XLR a 4 poli per alime[...]

10 Remote controller 1) “STBY”. Standby. It activa tes/deactivates standby mode. 2) “VOL+/VOL-“. Volum e setting. 3) “MUTE”. It activates/deactivates muting 4) “IN+/IN-“. It allows source sele ction and navigatio n through the set-up. 5) “SET”. It activates the set-up. Descrizione del telecomando 1) “STBY”. Stand-by. Attiva [...]

11 Unpacking and checking package Carefully open the package to avoid dam aging the conte nt. The package shoul d contain: • 1 Maestro Line pre amplifier • 1 remote controller • 1 power cord • 2 AAA batteries (placed in the remote controller) • 3 connectors for sectio ns linking (two XLR a nd one DB25 c onnectors) • 1 instruction manual[...]

12 Plugging and connecting Maes tro Line Preamplifier First of all, you have to link the two sections of the unit us ing the three pr ovided connector s. Before connect ing Maestro Li ne Preamplifier to the sound sour ce and to the amplifier, p lease be sure t hat all the units are unplugged from wall out lets. Connect the sources to the Maestro Li[...]

13 Volume settings and silencing (mute) The volume knob on t he front panel a nd the Vol+/Vol- butt ons on the remote contro ller change the g eneral sound level. It means that the vo lume of the two channels is al tered identica lly. It is po ssible to modify the rela tive level of each channel changing the balance option in the setup. The mute bu[...]

14 Notes on inputs bypassing Set-up has an optio n that allows sendin g the input signal t o the outputs to bypass the amplifier when t he unit is in stan d- by mode. It is possi ble to choose among the 8 av ailable outputs. Thi s option is useful when you w ant to integr ate the preamplifier into a multi-channel system, so that you can c onnect it[...]

15 Set-up navigation Due to the reduced size of the display, on ly one option at a time is shown. Use the remot e controller to nav igate through the different options, to cho ose the desired on e and also to modify the p arameters value. To select the d esired optio n, repeatedly pr ess the “SET UP” b utton on the front pa nel or the “SET”[...]

16 Specifications In/out configuration Paramete r Measurement conditions Value Channels: - 2 Line gain 20Hz-20kHz 12dB Frequency respons e: Attenuation –10dB Attenuation –20dB Attenuation –30dB <10Hz-115kHz +0/-1dB <10Hz-80kHz +0/-1dB <10Hz-30kHz +0/-1dB Noise level: Attenuation 0dB Band limits 0Hz-48kHz 125dB under 1V Unbalanced in [...]

17 Specifiche Tecniche Configurazione in/out Parametr o Condizioni di misura Valore Numero di can ali: - 2 Guadagno sta dio linea 20Hz-20kHz 12dB Risposta in freq uenza Attenuazione –10d B Attenuazione –20dB Attenuazione –30dB <10Hz-115kHz +0/-1dB <10Hz-80kHz +0/-1dB <10Hz-30kHz +0/-1dB Livello di rumor e Attenuazione 0dB Limiti di b[...]

18 TROUBLESHOOTING Symptom Cause Remedy Power cord incorrect ly plugged Make sure the powe r cord is correctly plugged into the am plifier and into th e wall outlet Display is off No sound Burned-out fuses Check fuse s in the fuse panel (after unplugging the power cord from the wall outlet) above the IEC power inlet and replace them w ith new ones [...]

19 RICERCA GUASTI Sintomo Causa Rimedio Cavo di alimen tazione non correttamente col legato Controllare che il cav o di alimentazione sia ben inserito nell’amplific atore e nella presa di rete Display spento Nessun suono Fusibili di rete bruciat i Contro llare i fusibili nel portafusibili (dopo aver staccato il cavo dalla pres a di rete) sopra la[...]

20 AUDIO ANALOGUE Head Office Ufficio commerciale : Via C. Bottai, 88B - 51015 Monsummano Terme (PT) Italy tel. 0572 954513 fax 0572 954010 R&D Laboratory Laboratorio ricerca e svilupp o: Via XX Settembre, 47 - 56017 S an Giuliano Terme (PI) Italy www.audioanalogue.com - info@audioanalogue.com[...]