ABY-ST - Fulltone
Contents
1. Fullloue Musical Products Inc TRUE PATH ABY ST Owner s Manual In my studio there are 20 30 some odd vintage amps from a 1959 Bassman to a 1959 Fawn colored Vox AC15 to the entire 60 s Fender Blackface line in duplicate to every year of Marshall 50 amp 100 watt amp spanning 1966 through 1971 I was always a single amp live performer until heard saw Eric Johnson in the mid 80 s while he was doing a set for Fender at the NAMM show Eric ripped that evening but what most impressed me was his constant switching between the bell like OD friendly Fender tones and the huge warm and fuzz friendly vintage Marshalls sounding like 2 guitarists in the process At soundcheck Eric was nice enough to explain his setup to this curious 23 year old who was so blown away by the high volume sounds being created that my life was changed that very day immediately set out to expand my own tonal palette by switching and combining 2 or 3 amps in my own Jazz Rock Blues music and started immersing myself in effect and amp design repair and modification eventually leading to this little thing we like to call Fulltone designed the True Path ABY switchers to solvevall of the issues that arise from combining amplifiers and to sound absolutely transparent in the process Other ABY s thump when switching Yes even if they advertise that they don t developed a circuit that rapidly pans between the outputs completely eliminat2. pedals do not react well to the buffer s low impedance signal Thats why the buffer feature is defeatable on the True Path ABY Channel B Buffer switch 6 Turns ON or OFF a second high quality JFET Buffer circuit affecting only the B Out This buffer is also defeatable Ground Lift for B Out 7 The default setting for this switch is Grounded It offers the ability to lift the ground on the B Out although we cannot recommend lifting grounds for safety and legal reasons When this switch is set to lifted there can sometimes be less hum in the amp connected to the B Out Phase switch for B Out 8 This switch corrects phase issues between 2 amps Phase is the relationship between 2 different sound waves and amps can often be out of phase with each other resulting in weak sound when combining the amps using the Both footswitch To check phase position the 2 amps directly in front of you about 6 or more feet apart both equal distance from the wall Turning the amps on select the Both switch and start moving the Phase switch from to while letting a chord ring out If the bass drops and sound appears to be coming entirely from far left and right with no center content on one switch setting our amps are out of phase and the Phase switch should be set to the opposite direction The correct setting for the True Path Phase switch varies between amps and even between amp channels for example Blackface Fenders so
3. al sales receipt The Warranty covers failure due to manufacturing errors only and is void if any mod or repair is performed by anyone other than Fulltone AND OR if we deem that any operator caused abuse or damage has occurred for example the use of an incorrect power supply a dropped pedal water damage etc Customer is always responsible for all shipping costs both to and from Fulltone Do not attempt to call Fulltone instead all Repair issues are handled via email to troubleshoot the possible problem and after troubleshooting for the scheduling of Warranty Repair After we have deemed that a repair is necessary we will email you an Acrobat PDF copy of our Return Authorization Form RA Form and print it out fill out all information and include it with the device you are sending Fulltone Musical Products Inc is not responsible for and injuries and or damages related to the use of our products Fulltone Musical Products Inc 11018 Washington Blvd Culver City CA 90232 for more info and expanded information amp videos go to www fulltone com Sales related questions email sales fulltone com Repairs Technical related questions email support fulltone com 2013 FMP Inc All Rights Reserved
4. always check the phase relationship between your amps before the gig DC Power Port 10 You may ONLY run this device on a high quality regulated 9VDC wallwart included or high quality 9VDC regulated pedalboard powersupply The tip must be configured as the industry standard 2 1mm x 5 5mm barrel plug with Negative to Center Pin configuration as per following diagram A battery cannot be used because the current draw is far too high and the pedal s performance is dependent on the unit getting clean accurate 9 0 volts hence the need for a regulated power source The True Path ABY has a protective circuit that can withstand short durations of over voltage but never try and operate this device on 12 18 or any other voltage than 9VDC The Fulltone FPS 1 included is a great 9VDC regulated wall wart adapter As far as pedalboard power supplies we have always recommended ours when available and the Voodoo Lab products There are some bad power supplies being sold as professional product If a multi out power supply is not advertised as having discrete outputs and is not regulated then don t buy it as it will simply offer you noise and may damage many of your pedals in the long run Warranty Fulltone products carry a Limited 5 year Warranty to the original owner with proof of purchase that the product was bought from an Authorized Fulltone Dealer There is no need to register your product simply keep a copy of your origin
5. ing thumps On this subject Especially when using single coil pickups lights and stray electro magnetic fields EMF s can appear to be a slight ticking noise but this is simply those noises coming through your pickups and cutting on and off as the signal pans between the outputs To test this simply turn off your Guitar s volume knob and hear that our ABY is dead quiet ST stands for Soft Touch meaning it has smooth actuating non latching momentary footswitches that are absolutely quiet for studio and or live applications where even the click of a footswitch could get you noticed in the wrong way The ABY ST allows you to create many amazing sounds not possible with a single amp set up Play on Michael Fuller President This unit is ONLY to be used to switch between or combine UL or CSA listed properly grounded amplifiers and only connecting to the amp s INPUT This product should never be connected to the SPEAKER OUT of an amplifier or you will damage this pedal and the amp s involved There is always danger of electrocution when combining amplifiers if you have any questions please contact a qualified technician Use this product at your own risk Fulltone is not responsible for any loss damage or injury resulting from the use or misuse of this product True Path ABY has an isolation transformer on the B Out that may aid in certain pedalboard related grounding issues Your True Path ABY also offers the abil
6. ity to lift the ground on the B Out although we cannot recommend lifting grounds for legal and safety reasons Again contact a qualified technician if you have questions and be safe Specifications Current draw 100ma Compatible with most Pro pedalboard power supplies Make sure to use a regulated power supply Size 5 25 W x 4 0 Dx 1 8 H Weight 1lb 7 oz Housing 16 gauge steel Buffer Specifications This ABY contains 2 high headroom high quality JFET buffers Input Impedance 1 1 megaohms very high optimal for guitar pickups Buffer Output Impedance 100 ohms extremely low so as not to load down your guitar cables or other pedals in your signal chain Transformer Fulltone custom wound 1 1 Isolation transformer high Nickel core content the best sounding transformer you can get period Primary Impedance 10K ohms Secondary impedance 10K ohms 2013 FMP Inc All Rights Reserved bo e A Out B Out Z Tae tee ei T olin DE o leare orr ON a e TRUE PATH g ABY ST Input see 9 on above diagrams Connect a cable shielded with 1 4 mono plugs coming from your guitar bass or other instrument into this jack Always use good quality shielded cables eg Fulltone Gold Standards for audio signals speaker cables are un shielded and should not ever be used to connect your instrument A Out 12 Connect a cable shielded with 4 mono plugs going to your amplifier A Out does not ha
7. ve a transformer on it It does have a switchable Buffer B Out 11 Connect a cable shielded with 1 4 mono plugs going to your amplifier B Out has a 1 1 transformer that is always in the signal path This transformer is Fulltone custom wound designed to reduce shock hazard when running multiple amps B Out also has a switchable Buffer True Path ABY s do not have a Tuner Out on its ABY s because quite simply they introduce a clicking sound from the Tuner to the audio path that we find unacceptable A or B footswitch see 1 Press this to send the signal to either A Out or B Out When the Yellow L E D 3 is lit signal only flows to A Out When the Green L E D 4 is lit signal only flows to B Out Both footswitch 2 Press this to have both the signal flow to A Out and B Out simultaneously Can be done whether you are on channel A or channel B Channel A Buffer switch 5 Turns ON or OFF a high quality JFET Buffer circuit affecting only the A Out A buffer is helpful because it can drive the longer cable lengths which you have if you re using a pedalboard with multiple pedals multiple pedal connecting cables and instrument cables with a combined total of 25 or more feet Without a buffer you will experience Treble loss as well as overall signal level loss meaning that your amp won t respond to your touch like it would plugging the guitar straight in with just a 10 foot cable The downside to a buffer is that certain Fuzz
Download Pdf Manuals
Related Search