Manuel d'utilisation / d'entretien du produit 284 du fabricant Lexicon
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User Guide All Tube Class "A" Stereo Recording Amplifier and Direct Sour ce.
Lexicon Inc. • 3 Oak Park • Bedford MA 01730-1441 USA • Tel: 781-280-0300 • Fax 781-280-0490 • www.lexicon.com Lexicon Part # 070-12856 Copyright 1998 Lexicon Inc., All Rights Reserved. Unpa cking and Inspection After unpacking the Signatu re 284, save a ll packing materials in case you ever need to ship the unit.
Introduction ..................................................................................... 1 Front Panel Controls ......... ............................................................... 2 Power and Standby ................. .................
Limited Warranty Lexicon Incorporated offers the following warranty on the Signature 284 Amplifier. Duration of the Warranty This warranty will remain in effect for one (1) year from the date of original purchase. Tubes provided with the original unit are warranted to be free from defects for six (6) months from the date of original purchase.
Signat ure 284 Us er Guide 1 Introduction You know the m oment — the one where the volume is cranke d to the limit and the g uitar player looks a s tho ugh his guita r might be p laying h im — as though they're locked in some ritual combat in another zone entirely.
Lexicon 2 Power and Standby As w ith any tube amp, you’ll get the longest life from the tubes by u sing the P ower and Standby controls properly. The Standby switch shou ld be in the stan dby position be fore tur ning the amp on with the Power switch.
Signat ure 284 Us er Guide 3 Front Panel Controls Getting the Feel of th e Signature 284 Like any classic t ube a mp, distortion is very d ynamic in t he Sig nature 284 — The amount of distor tion is controlled b y your pl aying style a nd dynamics.
Lexicon 4 The left and righ t volume contr ols are maste r input level con trols fo r the Class “A” stereo power a mp. These controls determine loudn ess, but, more imp or- tantly, they control th e quality of the power amp’s contribution to the overall tone .
Signat ure 284 Us er Guide 5 Getting the Tone Yo u Want The sonic signat ures of many different guitar sounds ar e based on power amp behavi or as much as preamp gain and tone settings.
Lexicon 6 You can drive a ny combination of 8 ohm and 4 oh m guita r cab inets fro m these connectors. Be sur e that the ohm selector switch match es the rat ing for the connected cab inet. (You can, fo r example, connect an 8 Ohm cabin et to the l eft and a 4 Ohm cabinet to the right.
Signat ure 284 Us er Guide 7 The E ffects Loo p is i nstrum ent l evel (-20dB instru ment level) to allow use of stomp boxes or studio gear in the loop.
Lexicon 8 Stere o L oop Exa mples 3. Connect the mono (or right) output of the effect to th e right r eturn of the Signature 284. 4. Set the gu itar, p reamp a nd the Left Volume co ntrol o f the Signature 284 for your loudest playing. 5. Tur n up the effect inp ut control to optimum level.
Signat ure 284 Us er Guide 9 Mono Loop Exam ple Rear Panel Connections Inserting Two Mono Effects processor s in parallel in t he Signature 284 E ffec ts Loop Dual Mono Effects Inserting a Mono E ffect in t he Signature 284 E ffec ts Loop The Left channel has Effect 1 only; the Right channel has Effect 2 only.
Lexicon 10 In a mono si tuation (live or laying down a mono track), try run ning the effects through only t he r ight si de (100% wet). T his allows yo u to ha ve two guitar feeds.
Signat ure 284 Us er Guide 11 The S ignatu re 284 is diff erent from most amps in that it is optimized for recording vs. on-stage performance. Its low output power amp makes it possible to achieve g reat ton e at low volume levels.
Lexicon 12 Low volum e live setup High volume live direct High volume live slave Applications.
Signat ure 284 Us er Guide 13 Example Settings Applications Here are some settings for you to try. Guitar and pickup types are shown i f they contribute significantly to the sound.
Lexicon 14 Applications 6 Texas Blues Stratocaster/ Neck 7 80's Marshall Humbucker (Bridge) 8 High Gain Humbucker (Neck and Bridge) 9 Singing Lead Stratocaster/Neck 10 One Size Fits All Any picku.
Signat ure 284 Us er Guide 15 Power Amp for Tube Warmth Using the Sign ature 28 4 with non -Guitar Sour ces Applications Although desi gned pri marily for guitar, the Si gnatu re 284 can be quite use ful for processing oth er sources.
Lexicon 16 Applications Looking for a more radical effect than can be obtained with a tub e mic preamp? Depending on how drast ic you want to be, run the vocal through either the Guitar input (easy on the gain!) or the effects return. Here a gain, the Signat ure 284 ha s some thing to offe r as an alter native way to process a source.
Signat ure 284 Us er Guide 17 Precautions and Maintenance General Maintenance The Signature 28 4 requi res no m aintenance. It is, howe ver, good electrical practice to clean all connecto rs once a year. An occasional dusting of the exterior surface with a soft cloth helps maintain the unit's finish.
Lexicon 18 Preamp Tubes: 3 x 12AX7 Gain: pull for boost Tone Controls: Bass, Midrange, Treble, Presence Effects Loop Stereo send: 2 x 1/4” unbalanced, -20dB Stereo return: 2 x 1/4” unbalanced.
Lexicon Part # 070-12856 Lexicon Inc. 3 Oak Par k Bedford MA 01730-1441 USA Telephone 781-280-0300 Fax 781-280-0490 www.lexicon.com.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Lexicon 284 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Lexicon 284 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Lexicon 284, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Lexicon 284 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Lexicon 284, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Lexicon 284.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Lexicon 284. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Lexicon 284 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
