Rowland s recipe although company founder and chief designer jeff rowland s. The text below has been republished from content that was formerly available on the official jeff rowland website. We design and manufacture highend audio products of exacting quality and enduring beauty for refined music. A potential shock hazard may result if the supplied 3wire, grounded.
Amplificatore finale del prestigioso marchio jeff rowland dotato di alimentazione separata con circuitazione switch mode. Costruzione allo stato dellarte con limpiego di componentistica. Jeff rowland design group concentra ii integrated amplifiers user. The concentra is jeff rowlands very first integrated amplifier. Jeff rowland model 10 amplifier ss sala amppreamp asylum.
View the profiles of professionals named jeffrey rowland on linkedin. The coherence ii was about to receive an iupgrade but somehow this never happened and the circuitry ended up in the synergy 2i preamp. The concentra im contemplating is the older 100 wpc. Jeff rowland 201 manuals and user guides, amplifier. Mar, 2015 at munich in 2014, jeff rowland put together what i think is the perfect configuration, with the companys aeris dac connected to a laptop for digital duties, and the builtin phono stage for playing the black stuff. The continuum s2 integrated amplifier from the jeff rowland design group represents the latest chapter in the iconic brands pursuit of the state of the art, in this instance within the more rigid confines of a singlebox integrated amplifier. Amplifier jeff rowland concentra owners manual 15 pages amplifier jeff rowland cadence phono stage owners manual 12 pages. The 300 series amplifiers are the jrdgs flag ships amplifier series and come in mono, stereo, or 4channel.
Hello this is an jeff rowland in good recondition for just 495. Rowland continuum s2 integrated amp the absolute sound. It is completely free for hobbyists to post classifieds here. Hi all thinking about buying a second hand jeff rowlands concentra 2, anybody on here use one. Page 2 concentra stereo integrated amplifier owners manual. User manuals, guides and specifications for your jeff rowland 201 amplifier.
Use hifi shark to monitor pricing and global availability. Welcome to cam, a classifieds site for used audio and hifi. Jrdg company special concentra 1 hfa the independent. Offered in excellent condition and full working order. Put more precisely, the power supply was taken from the model 2 amplifier and combined with an output section that resembles that of the model 10 and model 112. Jeff rowland design group also offers a line up of preamplifiers and integrated amplifiers and home theater amplifiers as well. I did get lucky and found a bpspowered coherence ii preamp in black. Products are not introduced, allowed to shine, then retired from the scene in a scant 12 months. Page 3 introduction elcome to the jeff rowland design group family and congratulations on your purchase of what is unquestionably jeff rowland design group, inc. Originally from locust grove, oklahoma, rowland now lives in easthampton, massachusetts where he continues to work on the two projects, while running topatoco, a company which sells merchandise based on his and other artists comics. Page 2 coherence stereo preamplifier owners manual. Jeff rowland manuals, schematics and brochures hifi manuals.
Jeff rowland model 7 mono high current power amplifier, user manual, power cable. Jrdg company special coherence ii hfa the independent. Jeff rowland concentra i integrated amplifier emporiumhifi. It also had that certain magic in the midrange the cj had it to that is hard to define. Coherence, synergy, concentra, and concerto ir remote control lockup. Perhaps jeff rowland doesnt know about it and keeps releasing new products. In order to get what you are looking for in the above quote, you must consider at the whole system. I have this one jeff rowland amp, and it doesnt matter what system i put it in. Jeff rowland mc6 amplifier owners manual pdf viewdownload. Dec 21, 2002 it also seemed to lack drive and energy. In fact, compare the specifications for the 625 and 725 and you could easily be forgiven for doing a double take surely theyve repeated the same figures by accident. After graduating from north tyneside college, jeff rowland became self employed as a professional artist in 1984. Jeff rowland model 8t stereo power amplifier diytrade.
Jeff rowland coherence ii preamplifier canuck audio mart. Like most jeff rowland equipment down the ages, this is a balanced amplifier that can do singleended well. Database contains 2 jeff rowland 201 manuals available for free online viewing or downloading in pdf. Rowlands recipe although company founder and chief designer jeff rowlands. Jeff rowland design group have been working with the core technologies that underpin this product for some considerable time, with genuine flagship designs like the 301 and now the new 825 stereo amp and 925 monoblocks all operating in class d. Jeff rowland has been among the elite highend manufacturers of transistor preamplifiers and power amplifiers. Maybe i got a lemon, i dont know, maybe bad system matching.
Jeff rowland after studying art at north tyneside college, jeff became self employed as a professional artist. View and download jeff rowland concentra owners manual online. All newer krells will also sound strained or not comfortable. E00643 integrated amplifier transistor used japan fs. More or less a onebox version of the synergy 2 preamp and model 2 poweramp. The biggest collection of jeff rowland manuals and schematics. I would allways prefer a jeff rowland amplifier over a krell, but in my opinion the only amplifiers that can drive scinnies to the absolute max are. View online owners manual for jeff rowland mc6 amplifier or simply click download button to examine the jeff rowland mc6 guidelines offline on your desktop or laptop computer. Purchased from the audio gallery in 2010, i am the second owner. Great savings free delivery collection on many items. Jeff rowland concentra ii the ability to reproduce every fiber in a guitarstring or that feeling in vocal voices is still on top truth in sound is the guiding philosophy of martinlogan. All have a very nice looking design to them without being over the top and gaudy. Jeff rowland concentra manual stereo integrated amplifier hifi.
Jeff rowland design continuum s2 integrated amplifier. The coherence ii, series ii was released april 1997. Jeff rowland continuum s2 integrated positive feedback. The jeff rowland concentra ii amplifier boasts a truly luxurious level of build and finish. Page 3 introduction jeff rowland design group, inc. Jeff rowland design continuum s2 integrated text and images by wojciech pacula, translation by andrzej dziadowiec. Rowland born may 22, 1974 is the author and artist responsible for wigu and overcompensating, two popular webcomics. Join facebook to connect with jeff rowland and others you may know. Jeff rowland synergy ii i hifi rub 85,000 feb 23, 2020 adpost new zealand. Ac cable ground terminal is defeated or lifted or the unit is connected to a 2wire ungrounded.
Mint condition jeff rowland coherence ii preamplifier recently serviced with jeff rowland including new batteries. We have 1 jeff rowland concentra manual available for free pdf download. Oct 23, 20 jeff rowland concentra ii the ability to reproduce every fiber in a guitarstring or that feeling in vocal voices is still on top truth in sound is the guiding philosophy of martinlogan. Stereotimes jeff rowland design group model 302 stereo. Unfortunatly rowland no longer manufactures the bps8. The high end of audio doesnt deal much in calendar years. At that time it was checked out at the factory and given.
Jeff rowland design group 201 amplifier the absolute sound. Jrdg company special concentra 1 retail price in 1998 in the netherlands 7. Audioshark forum is a leading forum site for high end audio discussion, stereo system discussion, home theater system discussion, best home stereo system discussion, home theater installation discussion etc. Original version of this well regarded and striking 100w integrated from jeff rowland. Alas, after a few short years of sovereignty, improvements in integrated cd player engineering resulted in the dacs dethroning. View and download jeff rowland concerto owners manual online. These are jeff rowland suits, i was to learn over the course of my auditions. To my ears jeff rowland is one of the few amps that produces a 3d image and im very satisfied with the 525, especially for how much it cost. The amplifier output section of the concentra ii contains six power amplifier circuits per channel, each capable of 150 watts of peak power, incorporated in a novel intelligent power transistor with gain configuration. Noone talks about rowlands anymore audiogon discussion forum. Jeff rowland concentra cascais e estoril olx portugal. At munich in 2014, jeff rowland put together what i think is the perfect configuration, with the companys aeris dac connected to a laptop for digital duties, and the builtin phono stage for playing the black stuff. Jrdg company special concentra 2 hfa the independent. Jeff rowland concentra ii with phono solid state audiogon.
Jeff rowland continuum s2 integrated positive feedback issue 72. Manuals and user guides for jeff rowland concentra. The concentra is jeff rowland s very first integrated amplifier. Concentra old model output compared to the power supply was improved by an upgrade. I have thoroughly enjoyed my concentra 2 integrated from rowland. The synergy 2i really is a great preamp with even better low level resolution than the coherence ii but is ultimately hampered in its abilities by its tiny power supply and of course it lacks a bps. Jeff rowland company special main page jeff rowland company special. This is a customer support page and any unsolicited sales pitches from non customers will be marked as spam by system admin. Cigna cigna hmo cigna ppo localplus open access plus. Jeff rowland coherence ii for sale canuck audio mart. He used this time to experiment with all medium including glass engraving, printing and painting, but he feels he is always drawn back to oil paint.
The manual is lacking amongst the best, such as the wonderful manuals by. Jeff rowland design group, colorado springs, colorado. The silver faceplate is a gorgeous diamond milled piece of aluminum 20mm thick. Virginia rowland, md is a pulmonologist in gilbert, az. Its just a good example of why you cant take anything for granted when putting together a high end system.
At this level, its not good enough to just pick components. The solid thick aluminum faceplate features the same finish as other jr from this era and is very attractive. Jeff rowland model 8t stereo power amplifier products made in united states, india trading company. Jeff rowland design group 725 mono amplifiers the audio. Perfect for a second system or home office running a relatively efficient speaker. Jeff rowland audioshark the best high end audio discussion forum. Barring esoteric and ultraexpensive designs, the separate transportdac concept faded from popularity. More or less a one box version of the synergy 2 preamp and model 2 poweramp. The new jeff rowland design group model 302 stereo amplifier there is a mono, three, and four channel version available as well settled into my system with some distinct advantages. Page 1 jeff rowland page 2 concentra stereo integrated amplifier owners manual page 3 introduction jeff rowland design group, inc. Put more precisely, the power supply was taken from the model 2 amplifier and combined with an output section that resembles that of the model 10 and model 112 power amp.
Jeff rowland concentra 100w integrated, just serviced by. Ii flyer nihongo jalal1926 instructionowners manual. High near 63, with temperatures falling to around 57 in the afternoon. Choice plus pos ii whole health banner health network hmo. Few products offer the complete satisfaction and pride of ownership youll experience with the purchase of a jeff rowland component. Jeff rowland design presented the continuum s2 integrated amplifier in the third quarter of 20. These rarely come up for sale particularly with the built in phono section. Inspired by his grandmother using oil paints, jeff has always been drawn back to painting in oils despite experimenting with glass engravings, printing and paintings with different materials. Difference between coherence ii series i and series ii. Grover always jams and takes the sax high and low the bass is really vibrating my camcorder. Our mission is to use this unique and astonishing technology to render the most complex musical passages as faithfully to the original source as possible. From what they tell me, you can get an ac powered model 8 and bypass its ac power supply, if you can track down a. Beautifully made it is certainly the bestlooking class d amp of the lot, with a body carved from a billet of 6061 aluminum and a wavy faceplate straight out of rowlands classic line, the 250wpc jeff rowland design group 201 monoblock amplifier is the secondbest class d offering ive heard.