Both are great at what they do, but ive found that i prefer the natural compression i get from the amp. Mar 15, 2018 its a compressor, its a sustainer, its an expander. How to get the most from your compressor pedal part 2. You can use it as a boost before or after your overdrive and it has touch n go attackrelease. The ross and its many, many boutique copies available today are extremely popular with todays players of all styles. Perfect for those that often switch live between single coils and humbuckers. Keeley may have some magic that makes it work that is not included in the description on his web site. It features a blend control that lets users meld their dry. One of my favorite features of the kcp is the threshold control. We now offer several models to meet each players and studios needs. The schematic shows pin 3 connecting to the 1n4148 diode and 20k resistor, whereas on the layout it is pin 5 that is so connected. Keeley compressor guitar effect pedal musicians friend.
Parts selection notes i made some changes in my project which makes the parts selection different than the tonepad layout that i used to build my version. Keeley electronics memphis sun lofi reverb, echo and doubletracker gently used. Ross compressor clone project documentation aurora. This pcb allows you to build either of those versions, along with a keeley compressor which is a ross with an attack knob and a pretty close. Its been a while since i used a compressor, so i cant recall if theyre all noisy, but my new keeley comp is. But the digits dont represent some cryptic inhouse code. This pedal will smooth out your sound, polish your tone, make your sustain sing and breathe new life into each note you play. See more ideas about guitar pedals, guitar and diy guitar pedal. Delivering both hard and softknee compression, the keeley compressor pro is a stompboxformat compressor limiter that works great onstage, but its superior frequency response and noise specs also make it a superb studio compressor that accepts a broad range of inputs from guitar and voice, to bass, keyboards, and drums. Its still up there with the best guitar compressor pedals. I eventually pulled both compressors off of my pedalboard, and now go compressor free. We ve experimented with mesaboogie s new line of pedals, which are really cool for that, and we ve used the analog man king of tone. Keeley keeley compressor compressor pro for sale online ebay.
Two of the most notable clones of the ross are the keeley compressor and the. The keeley compressor pro allows one to control and monitor the signal digestion process from input to output for the most finetunable and piquant tone pumping emissions possible. Bringing together the familiar thick, even tone loved by chickenpickin and funk players with new, streamlined controls that dial in even more possibilities, the keeley compressor plus infuses. With this layout you can build either the dynacomp or ross. Finally, per the schematic pin 7 should connect to the 1k5 resistor, but the layout has pin 1 so connected. The keeley electronics 4knob compressor has still got it after all these years. Its a great time to upgrade your home music studio gear with the largest selection at. The tone control is our own design taken from analog delays and other vintage effects. I dont know how much of that is true, ive never felt i lost any dynamics due to the compressor s positioning. Consider it an essential tool when creating loops that sound well balanced. The ratio control is an original byoc design that is transistor based rather than the typical ic based blend circuit so that it keeps to the theme and tone of the.
Keeley electronics compressor plus the keeley compressor is the most popular boutique compressor in the world. Hi everybody, here i have done a small verified pcb for that4301 compressor by carl martin compressor schematic or that which is uploaded by me in the top of topic. Since i got the keeley compressor plus, i play it and the diamond side by side in my practice place and then take one. Schemeit free online schematic and diagramming tool digikey. The runners up have been the main sueeeze and the biyang. I also really like the sound of compression pedals, and the carl martin compressor limiter is great, but the one that i really fell in love with on this album was the analog man juicer. Add the compressor plus to your rig, you and your guitar will be singing for days. The keeley compressor pedal ships with the 9v dc jack at the top end of the guitar pedal and use the same type of power supply used by nearly all guitar effect manufacturers. There is absolutely no sound coloration of your tone, and. However, the keeley compressor uses 150pf, and this is the value i settled on for for my aion compressor as. My damage control liquid blues has a really smooth optical compressor on the front end, its probably my favorite transparent compressor, just evens out the strings very naturally without stepping all over your playing dynamics. From the factory it is set all of the way off counterclockwise, which is the classic keeley compressor sound. Studioquality dynamic control at your feet is a luxury that guitarists havent seen before.
Basically a keeley compressor, the ca 3080 ic used in this circuit is no longer in. The compressor pro raises the bar for stompbox compression by packaging. The keeley compressor plus is a compressor with an expandersustainer. Keeley compressor pro professional studio guitar pedal. The keeley compressor plus is a truetospec ross compressor circuit with upgraded components for improved audio quality, reduced signal noise, and tighter specs. Diy layout creator diylc in short is freeware drawing tool developed with help. Keeleys most popular pedal ever, with gorgeous sustain and the perfect boost. I had been using the keeley for quite a while with the power box, along with other pedals coming out of the same power box, so id be surprised if the keeley became faulty due to being used with the power box, but im not an electronics expert.
How i set up my breadboard to design guitar pedals youtube. Will the acoustic variant do for the unplugged brigade what its predecessor did for electric players or will this. Very light and compact pedal, with lot of controls, just like studio compressor. Perfect for those that often switch live between single coils and hum buckers. Since its inception in 2001, the keeley compressor has become an absolute staple pedal on pedalboards all over the world, with more than 52,000 having been sold so far. Per the schematic pin 6 should connect to a 100k resistor, but on the layout it is pin 2 that does this. The keeley compressor is the award winning industry standard for stomp box compression. In this video, ill go a bit into how i design effects using a breadboard. Keeley compressor plus compressor sustainer expander. Sparks flew when blackstar let loose its gamechanging fly microamp in 2014. Keeley compressor plus effects rock n roll vintage guitars.
Similar to the blues breaker at least in circuit topography, but with a 3band eq and hard clipping. Donner compressor pedal ultimate comp guitar effect pedal. It is in no way limited to be used with only guitar. View topic emg schematics,layout,etc guitar effects pedals, guitar pedals. We took that circuit and made it into a full fledged tone control. The circuit is true to the original ross gray compressor and comes with the ca3080e chip and 2n5088 transistors these are the semiconductors currently used in the keeley compressor. Schematics and printed circuit board layouts for rare pedals like the. Here he reflects on the journey, technological strides, and where he sees his company going in the future. Oct 18, 2011 over the past 10 years, robert keeley has watched his company grow from offering a few experimental pedals into a major effects manufacturer with products being sold in more than 200 us stores and nearly 100 internationally.
All of these features not only make the byoc 5 knob compressor far more versatile than the ross gray compressor and its clones, but it gives it a hifi studio polish that other stompbox compressors cant match. The keeley compressor is the award winning industry standard for stomp. These devices provide more control and less lofi colorationbasically, they sound less compressory. Keeley compressor pro professional studio compressor pedal. According to guitar world, keeley electronics has grown into one of the worlds top sellers of guitar effects pedals. Consider it an essential tool when creating loops that sound wellbalanced. Sounded good playing by myself, but just didnt do what i wanted in the context of a full band. It incorporates many ideas that came from people using older versions of the application.
Keeley 4knob compressor guitar effects pedal guitar center. Ross keeley is a great design, but theres something about the flawed but lovable squawk of a dynacomp that i really dig. The new compressor plus pedal is a permanent replacement for the classic 4 knob compressor, and if keeley are confident enough to replace a legendary stomp box like that then this new offering. Oct 31, 2015 a guitar compressor pedal may seem like an expendable effect as they dont typically alter your sound as dramatically as, say, a fuzz pedal or guitar synthesizer. If you have a hard time getting 150k pots, use a 250k pot with a 390k resistor in parallel between lugs 1 and 3. Keeley are renowned for building exceptional quality pedals, and their popular compressor units are seen on countless pedalboards across the world. Apr 10, 2018 the schematic shows pin 3 connecting to the 1n4148 diode and 20k resistor, whereas on the layout it is pin 5 that is so connected. The stompbox sized compressor limiter is made in oklahoma, usa and engineered to be an indispensable tool for your musical endeavors. This pcb allows you to build either of those versions, along with a keeley compressor which is a ross with an attack knob and a pretty close janglebox which is a ross with a treble switch, or your own combination of the above. The all new keeley compressor plus defines boutique compression. The keeley compressor plus will help you on your quest for achieving the very best tone. Although not the same as the plus it should give an indication of keeley quality. I was playig the dallas international guitar show today and picked up the keeley.
Schemeit is a free online schematic drawing tool that will allow you to produce professional looking schematic diagrams, add corresponding part numbers, and. Keeley 4knob compressor guitar effects pedal musicians. Compressor plus continues keeleys fine tradition of infusing future designs with userrequested features. This product has been playeddemoed in store, used to make promotional materials. The keeley 4knob compressor is a modified ross compressor and is highly regarded in the stompbox world. Get the guaranteed best price on compressor effects pedals like the keeley compressor guitar effect pedal at musicians friend.
Build your own clone 5 knob compressor kit instructions. A guitar compressor pedal may seem like an expendable effect as they dont typically alter your sound as dramatically as, say, a fuzz pedal or guitar synthesizer. The keeley compressor provides studio grade, rackmount compressor. Below is a schematic of the modified ross compressor that i built, complete with r. In fact, many stompbox devotees would rate this shiny little box firmly in their top ten pedals of all time. Unlike any other compressor, the keeley compressor was given the editors pick award from guitar players magazine and recently awarded readers choice for stomp box. As some of you already know, the basic ca3080 compressors like ross, mxr and derivatives reverse the signal polarity and thus, the simple blend circuit additions wont work with it. This pedal will smooth out your sound, polish your tone, make your sustain sing and breathe new. Get a low price and free shipping on thousands of items. Yes, i have the exact same problem problem with the keeley when run on battery alone.
Keeley compressor pro discussion in effects bg started by groovebass5, jan 20, 2015. Im also assuming the auto switch may have something to do with adaptive attackrelease feature on the keeley bassistgc2. Robert keeley compressor plus effects harmony central. Its first in my chain and generates what seems to be a lot of hum to. Mar 05, 2015 this is the keeley electronics compressor pro. Check out the how to get the most from your compressor pedal part 2 page at sweetwater the worlds leading music technology and instrument retailer. May, 2015 the keeley electronics 4knob compressor has still got it after all these years. Bassist pedal compressor was phenomenal in that situation too. But experienced professional guitarists understand the critical difference a quality comp can make to their overall guitar sound. Thanks to the thoughtful inclusion of a selectable attackrelease toggle for single coil or humbucker equipped guitars, your entire arsenal of axes will get on fabulously with robert keeley. The sustain from the keeley compressor plus blossoms and blooms like tube amp compression.
Diy layout creator diylc in short is freeware drawing tool developed with. Turn it up to reduce clip the sensitivity of the input. Keeley electronics compressor plus bass gear magazine. The 4 knob adds input clipping and attack controls to the top of the the original keeley compressor for easy adjustment. The 4 knob adds input clipping and attack controls to the top of the the original. Keeley electronics compressor plus pedal of the day. You can use it as a boost before or after your overdrive and it has touch n go. Internal attack control the compressor pedal has an internal attack control, designed for bass players with highoutput active pickups or active pedal boards with buffers.
You can still find a bunch of layouts online drawn with this version of the software. Discussion in burnt fingers diy effects started by czechone2, sep 2. The modifications to the original circuit include an attack knob or a switch, if you cant find the odd pot. Heres another layout that needed a refreshcorrection. This compressor is similar to the mxr dynacompcompressor either can be built on the same pcb or with the same kit. My intention was to get a compression pedal to use as a boost for my guitar solos live and it may. Effective compressor layout results in cost savings on process and utility piping, good maintenance accessibility and possibly reduced pulsation in suction and discharge piping. Ross compressor clone project documentation aurora compressor. The goal is to provide a simple interface and enough power to let the user draw schematics, boardchassis layouts. Not only does it act as a regular compressor, limiting the peaks in your playing, it adds more and more gain as notes. Crafted with the same metal film capacitors and precisely matched transistors as its twoknob counterpart with the addition of attack speed and input gain knobs as opposed to internal trim pots, the keeley c4 4knob compressor brings an even higher degree of controlled, precision compression to the table.
Rk has taken his amazing best of the best 4 knob circuit comp pedal costing. Its only down side is the use of the obsolete ca3080 chip. I assume it prevents the overdrives from losing dynamic content when the compressor is first in line. Its basically marks layout for keeley 4knob style compressor with slight tweaks and more notably, an addition of mixblendratio knob.
Compressors usually have an attack knob that allows you to control how fast it takes the compressor to start effecting the tone and a threshold knob that sets the volume level that the compressor starts clamping down on peaks. The compressor pro raises the bar for stompbox compression by packaging a true studiograde audio compressor limiter circuit into a compact pedal. The aurora compressor is a clone of the ross compressor, which was a slightly tweaked mxr dyna comp with improved filtering and minor eq adjustments. Since then, he develops his own pedals, starting with a boost pedal. The keeley electronics c4 4knob compressor lives up to its reputation and is still one of the best guitar compression pedals available today.
Compressor pedal with eq control, parallel dirt circuit, buffer switch, and di. Oklahomas robert keeley electronics has actually sold nearly 50,000 u. Unlike any other compressor, the keeley compressor was given the editors pick award from. You can use it as a boost before or after your overdrive and it has touch n go attackrelease settings for humbucker or single coil. My intention was to get a compression pedal to use as a boost for my guitar solos live and it may be that this is not quite the intended purpose of the keeley compressor because at this it truly fails. The keeley c2 2knob compressor is becoming the industry standard when it comes to adding compression and sustain to your signal chain. Byoc 5 knob compressor diy kit from build your own clone. This is the one of best compressors that i encountered. Lets not forget that the pedal is also true bypass.
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