Sunn concert bass driver transformer

Transformers should always be installed by a professional electronics technician since there are high voltages involved and may result in serious physical harm to yourself, the transformer andor your equipment if installed incorrectly. Guitar amp project 18watt lite chassis and transformers hammond heyboer. In early 1963, the kingsmen, a band based in the u. Sunn coliseum300 300 watt bass amplifier head vintage. Ple ase look at the pictures and thank you for looking. They arent really the sunn models that sunn is famous for. This version has a bias pot on the power amp, with distort control. Schematics, waveform charts, semiconductor generic reference numbers, service bulletins engineering changes modifications. Red knob version has a single secondary winding meaning there.

Output transformers transformers passive components. Bass is sunburst fender precision bass with rosewood fretboard. Vex has announced the super duper concert bass mod, which promises to capture the sound of the infamous sunn concert bass head in a dual. Thus, the sunn musical equipment company was founded. Sunn amplifiers pete townshends guitar gear whotabs. The make up of the sunn concert lead is extremely easy to follow and both of the two channels has the same exact parameters as they are the same in configuration. Sunn lead concert service and new transformer for uk smp artizan. Otherwise if you really want a sunn wait to find a. Grand stack version with more iron, thus more power, more bass and finally more tone. Mmmm was 110 v model and someone has added a rather two small autotransformer should be at least 400 va and after the switching sinsolations tape lovely job. By 1964, the sundholm brothers had designed a highpowered concert bass amplifier and in 1965 the demand for sundholms amplifiers had increased to the point where the sunn musical equipment company was founded. I am picking up a 1970s sunn concert lead for 150 bucks, does anyone have any experience with these amps.

Premium guitar amplifier power transformers, output transformers and chokes. The output transformers have what youd expect out of a dynaco transformer, like healthy low frequency inductance, high resistance to distortion caused by output tube dc current imbalance, and low overall distortion. Sunn amplifier coliseum pa system psychedelicrocknroll. Sunn lead concert service and new transformer for uk smp. Transformer sets are often misunderstood, yet vital musical components. Youre sure to find the top speakers for computers, car stereo systems, pro pas, musical instrument rigs, commercial paging systems, or home music setups. Dec 19, 2014 the latest sunn o project, soused, is a collaboration with scott walker, the u. This cool sunn bass amplifier was tested to power up. Theyre integral to the nuances of your guitar amps sound.

On top sat a separate cabinet housing a jbl 375 midrange compression driver coupled to a jbl hornlens, giving. Works for fender champ, tweed champ, blackface champ and tweed princeton 5f2a. This output stage is transformer driven, so make sure the transformer winding for that transistor is ok. Browse our great selection of home, professional, and car speaker components. A cool one from the 70s, no tubes, but nevertheless it sounds pretty good, especially with loads of distortion. Fender bought the sunn name and reissued them but they were nothing even close to the originals. One is that the power transformer has 3 taps for seperate voltage windings and 3 rectifiers, where as the red knob series has a pt with a single secondary, and all the lower ps voltages are tapped off from there. The early sunn amps used dynaco transformers and kt88 or 6550 tubes, that gave them a great hifi sound with a beautiful bloom to low notes. This version varies from the red knob concert series amps in a few ways. Right now the concert bass is hooked up to a 2x15 peavey cabinet and the concert lead is paired with at sunn 610l 6x10. Mmmm was 110 v model and someone has added a rather two small autotransformer should be at least 400 va and after the switching sinsolations tape lovely job always love this sign. Like the original dynaco tm units, theyre the best bang for the buck available in output transformers.

Difference between sunn coliseum bass and sunn concert bass. Fender super reverb style transformers by classictone. Sunn lead concert service and new transformer for uk. They built an amp for guitars and for bass, and the grill cloth had vertical stripes on it that got wider as you moved left to right. What wiki does not tell you is that conrads solution was basically to add a preamp stage to a dynaco mark 3 home hifi amp and stick it in a big speaker cabinet. Seems like these earlier ones with the silver panel were 197274 and the red knobs started appearing in 1975. As a side note, a quad secondary driver transformer simplified high power amp design, classic examples are the vox series connected output transistors stages and sunn. Sunn concert bass 1972 version amplifier schematic contents.

My husband has a sunn concert bass and a sunn concert lead. Used sunn concert bass bass amp head guitar center. By 1965, the demand for sundholms amplifiers had increased to the point where the family garage could no longer be used as the manufacturing facility. Sunn diagrams, schematics and service manuals download for free. They tend to get a little squishy as you crank them up, and they can be bright as hell too. Not all amplifier models of the same name use the same transformer model. Fact is, there were no cheap or easily available complementary driver transistors. Sunn amplifiers are a brand of musical instrument amplifiers. For each transistor there is a voltage divider comprising a 1. I have tested replaced, as necessary all resistors and capacitors including all five 2n3055 transistors, all electrolytics, all three rectifiers, and all emitter resistors.

Hi there,i log on to your blogs named prowess amplifiers sunn schematics concert bass on a regular basis. Schematics, waveform charts, pc board layout, parts list, semiconductor generic reference numbers, service bulletins engineering changes modifications. Some of those sunn ss are really bad, the beta lead being a great example. The sunn orion series was sunns first solid state amp. Cab recommendation for sunn concert lead and concert bass. If so, power it up and measure the voltages coming out of the transformer.

Sunn introduced its powerful coliseum pa system ca. The concert series had a conventional tone stack eq and an unusual transformer coupled power amp. After its hit single, the band soon embarked on a 50state national tour. The transformer winding is wired from the junction of those to the base of the q. Its supposed to be 120 watts which by todays standards isnt much but its suprisingly loud.

Im not sure exactly what the wattage on this head is i think it is 100 watts, but rest assured that this thing can absolutely crank loud. The coliseum series has a 4 band crossover eq kind of like a 4 band graphic equalizer with rotary controls and a more conventional direct coupled transistor power amp. Ive got a 60s 100s head that works great for guitar or bass with the appropriate cabinet. The thing was a total tank up until abut a year ago. The power amp was a new solid state design and was built into the bottom of the speaker cabinet. Please make sure the amplifier transformer which you are replacing has a fender number matching the equivalent fender transformer number listed here. The coliseum bass and concert bass came out in the early 70s.

Sunn amp speaker cabinet corners 4 total screws 3 l 5 out of 5 stars. Hi there,as long as i can remember,a watt is a watt,there is no european or north american watt ratio. Im bringing back in life a sunn concert bass amp and when im done with the recapping, etc it would be. Difference between sunn coliseum bass and sunn concert. Sunn concert bass have a good question for you guys i need a schematic for a sunn cocert bass amp. Sunn 1200s sound settings sunn catalogs sunn guitar and bass amplifier owners manuals sunn lighting owners manuals sunn model t settings 11 jun 2015 the mammoth amp that helped propel sunn to be known for such a colossal sound, the 2000s. Far more than tubes, speakers or other amp components, the transformers establish the platform for shaping your amps unique sound. Hi, i need a power transformer for an all tube 1970 sunn2000s bass amp. They each have knobs for volume, bass, mid, treble, but since there are a few different versions the rest of the parameters usually vary.

Free sunn diagrams, schematics, service manuals schematics. Mar 27, 2015 early version of the sunn concert bass. The 610 sounds great, but the angles make it not that useful in the studio. Skip to main content skip to footer site5112073497 used 112073497 sunn concert bass bass amp head. And you can look our website about free proxy list. May 25, 2015 by 1964, the sundholm brothers had designed a highpowered concert bass amplifier. The concert amp uses transformers in the output driver stage. Sunn studio lead 2x10 2x10 pyle driver ceramic speakers solid state 1 channel with lead and rhythm inputs controls. Enjoy the lowest prices and best selection of sunn bass amplifier heads at guitar center.

Sunn 2000s power transformer techtalk speaker building. This original version has no bias pot on the power amp, with distort control. You are looking at a 1972 sunn concert bass amplifier vintage head amp free shipping. Aug 14, 2011 6 common mistakes made by bass players and how to avoid them scotts bass lessons duration. Mar 15, 2016 sunn concert bass with peavey 3620 duration. Sunn concert lead schematic old version, silverface.

Sunn lead concert service and new transformer for uk sunn concert lead simple amp sounds great. I cant speak for the concert lead, but id definitely play it before i bought it. The concert head is a good pedal platform for a bassist and the coliseum is a decent solid state head for a bassist. My only experience with sunn ended when i replaced my 200s with. Does anyone have any info on where to find replacement driver transformers for the sunn concert bass amp or what can be used for a substitute. We are looking for something that would usefully supplement the other amps we have, which include a bassman, a twin reverb, and an sunn sb200 combo. Sunn concert bass repair parts discussion in amps and cabs bg started by s3156, oct 1, 2011.

The transformers were from the large dynaco mono blocks. Sunn concert bass power transformer specifications. Sunn 002900 sunn amplifier 16 ohm bolton speaker driver spl series w1 port. By 1964, the sundholm brothers had designed a high powered concert bass amplifier. The sunn concert lead is a tube based guitar amplifier head that has two separate channels. Mar 14, 2017 sunn concert lead schematic old version, silverface.

I have a very old sunn coliseum 300 head, that ive had for about 10 years. Sunn o originally reached out to walker around 2008. This amp has killer tone but it has the wrong power transformer in it, so it only puts out about 80 watts. The earlier power transformer has 8 wires, the later version only has 5 wires.

Reverb is the marketplace for musicians to buy and sell used, vintage, and new music gear online. Long time member here, but ive never really madeir over to the bass forum, but i had a question i think you all would be best suited to answer. Sunn concert bass 1973 version amplifier schematic contents. The latest sunn o project, soused, is a collaboration with scott walker, the u.

Auto transformer too close to preamp board for comfort. Loud and clean was the intent, which was logical as most top40 music was still the 2. Fanta studio sunn lead bass distortion overdrive 2020 black light green. Sunn o originally reached out to walker around 2008, proposing a possible. Zvex effects unveils super duper concert bass mod pedal. An amp that puts out 100 watts rms is a 100 watt amp,regardless of where it was made.