Στήσιμο pedalboard: Σφαλματολόγιο και λύσεις.

[zappa]

τι παρενέργειες δημιουργούνται?

 

Εμένα μου έκανε feedback σε settings που δεν θα έπρεπε,

και δεν ήταν οσο velcro θα έπρεπε σε άλλα

[koronios]

Καλησπέρα και από μένα,  είμαι και εγώ νέος  με τα pedal boards,  και  έχω στήσει  το παρακάτω,  προς το παρόν αυτό που με παίδεψε  ήταν τα καλώδια, πήγα και έβαλα  evidence  με  neutric βύσματα,    το evidence  άριστο  μεν ,  άκαμπτο  δε,  είναι με την επένδυση,  όποτε  αποφύγετε  το αν  έχετε  στενό χώρο , μου έβγαλε το λάδι,  τα δε  neutric ψηλό-τεράστια  και πιάνουν χώρο. 

 

Α και  μια ερώτηση  στους κατέχοντες γνώση,  έχω το  delayla-XL,  και όταν  το κλικαρω  μου αλλοιώνει τον ήχο,  σαν  να προσθέτει  presence και να λεπταίνει  τον ήχο μου (δεν μπορώ να το εξηγήσω αλλιώς),  ξέρετε  κάτι γι΄αυτό?

[if_it_is]

Για να περναει το σημα σου ανεμποδιστα  σαν...γαργαρο νερακι μεσα απο τα πεταλακια σου (οτι buffer & να εχουν),ψαξε στο νετ υπαρχουν καποιες εταιριες που φτιαχνουν.

 

μόνο 1 πετάλι μου έχει buffer (mesa v twin).

το boost n buff δηλαδή δεν θα λειτουργήσει όπως το σκέφτομαι?(να μην έχω απώλειες σήματος με 9 πετάλια)?

έχει νόημα ένα buffer στη μέση της αλυσίδας?

[Superfunk]

για να μην εχεις απωλειες σηματος πρεπει να ειναι low impedance το buffer δεν ξερω αν το πεταλι που αναφερεις εχει τετοιο buffer (τα visual sound πεταλια εχουν π.χ.)

[zappa]

Εγώ έχω ένα της LA Sound Design αμέσως μετά τα fuzz,

έχουν και άλλα 2 πετάλια της αλυσίδας οπότε οκ

[bloody_sunday]

τι πρόβλημα θα έχω αν το βάλω πριν το fuzz factory? ???

 

To Fuzz Factory έχει τρανζιστοράκια γερμανίου, και όπως σχεδόν όλα τα φαζ αυτά αντιδρά περίεργα (από πιο "φτωχό" ήχο μέχρι και ψιλοσφυρίγματα) στην εμπέδηση που θα του προσφέρει ένας buffer. Aν "δει" το σήμα αμέσως μετά τους μαγνήτες της κιθάρας σου δεν θα υπάρχει κανένα πρόβλημα. Επίσης ναι, ένας buffer έχει σημασία σε οποιοδήποτε σημείο της πεταλιέρας σου, αρκεί να είναι σχετικά νωρίς, και ει δυνατόν όχι μόνο ένας αλλά και με έναν ακόμη στο τέλος. Aυτό της MI Audio λειτουργεί και σαν booster, και σαν buffer.

 

Για να περναει το σημα σου ανεμποδιστα  σαν...γαργαρο νερακι μεσα απο τα πεταλακια σου (οτι buffer & να εχουν),ψαξε στο νετ υπαρχουν καποιες εταιριες που φτιαχνουν.

 

Οι buffers που βρίσκονται μετά από άλλους βάζουν την ηχητική "υπογραφή" τους επάνω σε αυτή των προηγούμενων.

[Superfunk]

Οι buffers που βρίσκονται μετά από άλλους βάζουν την ηχητική "υπογραφή" τους επάνω σε αυτή των προηγούμενων.

 

μπορει αλλα ετσι κι αλλοιως ..ΚΑΛΥΤΕΡΑ θα ακουγεται απο..χωρις καθολου buffer... ;D

 

βρηκα και μια ωραια αναλυση του

Bob Bradshaw

 

Buffers are extremely important in a multi-component system. They are often misunderstood and often get a bad rap by those who are uninformed. In a CAE system, a buffer is a unity gain (input level equals output level) impedance converting circuit. It essentially protects your high impedance guitar output (or any other high impedance source, such as an amps' effects loop send) from being loaded down by the input it is connected to. In effect, it converts high impedance to low, which means subsequent stages are then driven by a low impedance source (the buffer's output). High impedance sources such as your guitar's output (assuming you have passive pickups) has very little current drive capability and it's signal is subject to a harsh environment once it leaves the guitar. You already know the adverse affect a long cable has on your tone. Same thing happens if you pass your signal through a bunch of effects pedals. Even if they have "true bypass" (an ugly, over-used term), each one will suck a little more of your signal along with the cables and connectors, mainly due to capacitive loading of your high impedance guitar signal. The end result is a muffled weak signal that lacks clarity. But once your high impedance guitar signal hits a properly designed buffer with a high input impedance, the buffer takes over, and uses its higher current capability (remember, its an active circuit that requires a power supply) to drive all subsequent stages, thus preserving your instrument's tone. This brings us to buffer quality. Buffers come in all types of designs, from discrete transistor, op-amp, to esoteric tube designs. All have their own unique sonic stamp. At CAE we use the op-amp approach. It has served us well for years, is low noise, and is extremely transparent to our ears. Buffers often get blamed for causing an overly bright sound, but we feel if its designed properly, any perceived "brightness" is because now the guitar is not being loaded down by subsequent stages!

 

Buffers can cause problems, too. There are some effects devices that don't like to see the low output impedance of a buffer. These are typically discrete transistor designed fuzz circuits (such as the Dallas Arbiter Fuzz Face). They react better to the high impedance output of the guitar. In fact, the guitar output, cable and input stage of the Fuzz Face complete a circuit that is highly dependent of those 3 components to work correctly. Fuzz Faces clean up nicely when you roll back the guitar volume control... not so if a buffer is between the guitar and Fuzz Face input. So if you have a pedal board with a Fuzz Face on it , put it first! Other pedals may react the same way. Experiment to see what works best for you. Keep in mind all active pedals (such as Boss, Ibanez, etc...) act as buffers and will impart their own sonic stamp even when bypassed. This is what started the whole "true bypass" (ugh! that term again) craze. See? Too much of a good thing can be "bad". Which brings us to how we utilize buffers in CAE custom switchers. We only use buffers where absolutely necessary. Typically, in a pedal based system we will not buffer until after the first 4-5 loops, which is usually just prior to sending the signal down to the pedal board (via a long cable run, hence the need to buffer) to hit the wah/volume pedals. Any more than 4 or 5 loops, and the guitar signal may be affected by capacitive loading. So the first few loops is where you would put any impedance sensitive effects. This also means your guitar will go through fuzz, overdrive or distortion pedals BEFORE the wah. We prefer this order because the wah then has a more harmonically rich signal to filter. Try it yourself. Of course, if a specific order is required, we will do everything we can to make it happen. Buffers are also necessary to drive isolation transformers, since the relatively low primary impedance of the transformers may be detrimental to whatever circuit is feeding it. This is also why amp splitter circuits must be buffered. You can't drive multiple amps with a relatively high impedance source. So there usually is a buffer somewhere in the output stage of your custom switcher. That's usually it. 2 places minimum. There may be more active stages depending on your system requirements.

 

Pedal boards are fine if you just want a few pedals and your switching needs are basic. We build them all the time. But if you are truly serious about your tone, and you want many sound options available to you at any time (not to mention preset combinations and midi program change capability), a switching system is the way to go. No one said you have to turn on all the stuff at the same time! Besides, THERE IS NO CLEANER SIGNAL PATH FROM GUITAR TO AMP THAN WITH A SWITCHING SYSTEM, PERIOD. With a pedal board, even if every effect is bypassed, and you have "100% bypass" switches in all your effects (which is rare), you are still running through every pedal, and every cable and connection in the system. If something fails, good luck finding it. There is still a major capacitive buildup (which results in a severe loss of tone, mainly high end) because your signal must go through each cable and pedal. This is why signal buffers are so important. With a CAE switching system, troubleshooting is easy because you can bypass to get effects out of the signal path, and you can patch in between various places in the signal path, when you know what to look for. With a CAE custom switching system (we can't vouch for other manufacturers) the majority of the signal path is hard wired internally, and with a loop based system bypassing the effect bypasses the cables connecting the effect as well! This is impossible with a traditional pedal board.

 

 

[bloody_sunday]

μπορει αλλα ετσι κι αλλοιως ..ΚΑΛΥΤΕΡΑ θα ακουγεται απο..χωρις καθολου buffer... ;D

 

A, σίγουρα... η διαφορά είναι μεγάλη. Ενδιαφέρον αυτό του Bradshaw, δεν το είχα διαβάσει. Μου άρεσε η σημείωσή του πως "we only use buffers where absolutely necessary". Aν δεν κάνω λάθος αυτό δεν πολυσυμφωνεί με την τεχνική του Cornish που βάζει παντού unity gain buffers...

[Superfunk]

παντως ενας φιλος πηρε αυτο

 

http://www.premierguitar.com/Magazine/Issue/Daily/News/Cusack_Effects_Announces_Pedal_Board_Tamer.aspx

 

και ειναι οντως η ΚΑΛΥΤΕΡΗ λυση. Wink

 

αν ποτε μου,λεμε τωρα,επεστρεφα στα πεταλια θα μου ηταν απαραιτητο....21ος αιωνας ρε αδερφε..... ;D

[zappa]

παντως ενας φιλος πηρε αυτο

 

http://www.premierguitar.com/Magazine/Issue/Daily/News/Cusack_Effects_Announces_Pedal_Board_Tamer.aspx

 

και ειναι οντως η ΚΑΛΥΤΕΡΗ λυση. Wink

 

αν ποτε μου,λεμε τωρα,επεστρεφα στα πεταλια θα μου ηταν απαραιτητο....21ος αιωνας ρε αδερφε..... ;D

Αν δεις τι σου προσφέρει σαν features και τι δυνατότητες έχει ένα gig rig θα αλλάξεις γνώμη νομίζω.