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     1  ~ 2014 may 28troels gravesenDIY Loudspeakers - Troels GravesensTroels Gravesen's DIY Loudspeaker Projects has a number of very well built speaker projects. ChoicesBeing a newbie in diy-loudspeakers, the #1 question
     1  ~ 2014 apr 04wharfedale driver coneWharfedale Super 8 - Troels GravesenThe Super 8/RS/DD is in many ways a modern driver . A highly ventilated chassis houses the straight-sided paper cone attached to a voice coil wound with ...
     3  -2 2014 may 30speaker diyHES, High-Efficiency Speaker Constructions. Click heading to go to overview of HES constructions.
     3  +1 2014 mar 31briggs filter loudspeakerOBL11 - Troels GravesenThis is my homage to Mr. Gilbert Briggs , founder of Wharfedale loudspeakers ... making a 10 inch and 12 inch driver running in parallel with no low-pass filter is ...
     5  +2 2014 may 05calculate port length pvcVent tuning , calculation of vent length - Troels GravesenThe port length required to tune a volume of air to a specific frequency can be ... in a plastic bag and submerge it in water to measure the volume is a little funny.
     5  -1 2014 apr 18tannoy gold monitorTannoy Monitor Gold 15 - Troels GravesenA pair of dual concentric Tannoy drivers have been on my wish list for a long time . Try Google " tannoy monitor gold " and you will be flooded with web pages ...
     9  +1 2014 may 16wharfdale sand filledWharfedale Super3 - Troels GravesensThe Super 3 was used in the Wharfedale SFB ( sand filled baffle) mounted on the rear of the cabinet, pointing upwards. (images nicked on eBay) Download ...
     10  -2 2014 jun 30vifa studio monitor kitScanSpeak Projects - Troels GravesensWhat makes a " studio monitor " different to any other "hifi" loudspeaker? Well, a true studio monitor is supposed to have a reasonably flat on-axis response ...
     10  -2 2014 jun 08charioChario Sonnet - Troels GravesensDo not expect a Stereophile type of review of these charming Chario Academy Sonnet loudspeakers. I cannot write page after page of how a loudspeaker ...
     10  +1 2014 may 16monacorMonacor SP200X + - Troels GravesensThe Monacor SP200X is a cost-effective fullrange driver, built on wellknown premises and also sharing some of the bad qualities like a thin dust cap over an ...
     10  +4 2014 apr 25diy speaker kitsDIY Loudspeakers - Troels GravesenHES, High-Efficiency Speaker Constructions .... Up-Grade Kits For Vintage Speakers . JBL L100 Century ...
     10  -5 2014 apr 02diy speakers in canadaPage Index Updates Builders' response For sale Speakers ' Corner Jan- .... 08-03 -2014: Up-date on Ellam FLEX 3W, built by Bertrand, Canada
     11  +23 2014 jun 30scan speak revelatorScanSpeak Illuminator Monitor - Troels GravesensFormer top of the range drivers from ScanSpeak featured sliced paper cones, the Revelator series. Revelator drivers are a dream when it comes to crossovers.
     11  +4 2014 jun 17tannoy monitorTannoy Monitor Gold 15 - Troels GravesensA pair of dual concentric Tannoy drivers have been on my wish list for a long time . Try Google " tannoy monitor gold" and you will be flooded with web pages ...
     13  +5 2014 jul 01scanspeak discovery dome midrangeSo long that the ScanSpeak Discovery series wasn't developed yet.
     13  +3 2014 may 14cyclopCYCLOP - Troels GravesensThis is a speaker I've wanted to do for a long time. A 3-way design from 10" bass drivers supplemented by relatively small midrange drivers. I liked my ...
     13  -2 2014 apr 13clio make kap10C77 - Troels GravesenAudio Technology 10C77-25-10- KAP Copyright 2009 ... First of all I do not intend to make a vented system for this bass driver, rather a transmission line cabinet.
     13  -2 2014 apr 08wharfedale bass driverOB9 - Troels GravesenThe JA8008/TW034 combo helped by the 15" Eminence bass drivers will probably never ... A decent clone of the beautiful vintage Wharfedale SFB speaker.
     13  -1 2014 mar 30active vs passive crossoverElectronic crossovers , pros and cons. - Troels GravesenAny loudspeaker crossover , being active or passive , divides the frequency band between drivers with regard to amplitude and phase and ensures a balanced ...
     13  +2 2014 mar 28my speaker plansOver the years my focus has moved from small inefficient speakers to larger .... 18 -10-2012: Jenzen Accu mkII, use Jenzen-D front panel design  ...
     15  +2 2014 may 17hypexHypex - Troels GravesensI decided to go a little further aiming at 200 wpc and the Hypex modules seems ideal for this. Ready made circuit boards, and all you need is a chassis and a ...
     15  +22 2014 may 08pioneer bass filtreHigh Efficiency Speakers - Troels GravesenThe JBL 12" bass driver really handles all of the midrange and the Pioneer ... major trouble due to poor filtering but I wouldn't be surprised if Pioneer had made a ...
     15  -9 2014 apr 03diy speakers canada
     16  ~ 2014 jun 21single driver speakersHigh Efficiency Speakers - Troels GravesensOne important thing: What we often hear reported from single driver set-ups, is the revelation of minute details in the ...
     16  +9 2014 apr 15jiuceamp and speaker kitIn case you want advice on which speaker to build, please read both "choices" and "crossovers" ... Up-Grade Kits for classic vintage speakers :
     17  -4 2014 may 05seas loudspeaker drive unitsSEAS constructions - Troels GravesenRead about the latest and best SEAS speaker I've ever made.
     17  -5 2014 apr 01audio note speakersWhy bother about 95-100 dB/1 watt speakers when we have almost ..... I'm sure the answer from Audio Note would be that this speaker should be placed in ...
     18  +8 2014 jun 16seas full range speaker11-04-2014: SEAS NEXT4 speaker construction. Four drivers and the ... 02-11- 2013: Test of ScanSpeak mini full range drivers, 5F/8422T01 and 10F/8414G10
     18  ~ 2014 may 19super3The Super 3 was used in the Wharfedale SFB (sand filled baffle) mounted on the rear of the cabinet, pointing upwards. (images nicked on eBay) Download ...
     19  +27 2014 may 09tune box softwarvent tuning - Troels GravesenIn all the ported systems I have made, I have used box simulation programs suggesting optimum cabinet volume (Vb) and vent tuning (Fb). However, port ...
     19  -6 2014 apr 17best vintage speakersVintage HiFi - Troels GravesenBelow and overview of some vintage hifi drivers and speakers I have bought ... became the best selling loudspeaker model of any company in the Seventies.
     20  -8 2014 may 27pris hesSingle Driver Systems Extended Range Drivers HES Part II Size, Efficiency and .... and maintain some treble level, and the price to pay is weak or no bass at all, ...
     20  +21 2014 may 156c33c amplifierAudioMirror-6C33 - Troels GravesensRe-building Audio Mirror amps for 6C33 triodes. Copyright 2011 ... I will suggest you to try auto bias for the 6C33C . I recently did that and I am ...
     20  -3 2014 may 14fostexFostex FE126E + - Troels GravesensFostex has a large program of fullrange drivers and from searching the web, they appear to have a mixed reputation. Lightweight paper cones and large ...
     22  -4 2014 may 04effective cone diameterPL14WJ09-08 - Troels GravesenMechanical resistance. Rms 1.3. Kg/s. Moving mass. Mms 8.2 g. Suspension compliance. Cms -- mm/N. Effective cone diameter . D. -- cm. Effective piston area.
     22  +28 2014 apr 02best hi end bassAt its best , high - end audio sound is impressive open and clear, with deep bass , shimmering highs, and a flair for thrilling spatial effects: At its worst, it's lifeless ...
     22  +16 2014 mar 25little gold monitorTannoyMG15 - Troels GravesenTry Google "tannoy monitor gold " and you will be flooded with web pages describing .... This dual-concentric principle is a little wonder but I have always been  ...
     24  +32 2014 apr 08line stage ampDuro - Troels GravesenThe Hedo/Duro is the power amp section of the Jungson JA88D-09, stripped to ... I use my WOT line stage and I could run this is balanced mode but prefer the ...
     25  +5 2014 may 26dome tweeterLarge domes - Troels GravesensI changed the heading from "large domes " to "large tweeter domes " as large domes might suggest mid- domes as well, usually having a voice coil diameter of  ...
     25  +35 2014 may 19philips loudspeaker 4 ohm 25Philips 9710/ - Troels GravesensThis is usually only seen from symmetric drive (SD) speakers where the pole piece is
     27  -7 2014 may 15back loaded hornrecommended enclosureFE126E. RECOMMENDED ENCLOSURE. Unique Back Loaded Horn + Bass Reflex Hybrid Enclosure. 115. 152. 192. 262. 59. 118. 172. 226. 345. 92. 405. 150.
     27  -3 2014 apr 10open baffle speakerThis is my homage to Mr. Gilbert Briggs, founder of Wharfedale loudspeakers and ... Many experiments went into this OBL11 open baffle speaker based on the ...
     30  +27 2014 may 06speaker parts fro jblJBL L26 restoration and upgrade - Troels GravesenLink to Part II, the 3-way option. ... Why bother with an old JBL speaker at all? ... I' ve never done foam surround replacement on such a large driver before and ...
     31  +27 2014 jun 10er15rlySEAS constructions - Troels GravesensSEAS NEXT4 April 2014. Smooth when music is smooth, harsh when music is harsh. Read about the latest and best SEAS speaker I've ever made.
     31  +31 2014 apr 04omni directional speakersSonab OA5 mkII speakers, Stig Carlsson's omnidirectional speaker The Sonab range of speakers from the Seventies are speakers I've long been looking for in order to find out what the 9710 could do in an omnidirectional set- up, ...
     32  -12 2014 may 30jensen seasFour drivers and the best SEAS construction I've ever made. 21-03-2014: Test of .... 24-03-2014: Jensen 1071, built by Ziggy, Poland 19-03-2014: Discovery ...
     32  +2 2014 may 20open baffle full rangeOB7 - Troels GravesensAlso view OB9, 2009 open baffle construction and OBL-11, the final OBL ... by this I mean the Supravox run almost fullrange with a point of crossover as high as  ...
     34  ~ 2014 may 15wharfdale woofer serviceThe Wharfedale Super 8/ - Troels GravesensOne of the flattest and most extended frequency responses of a speaker from that .... Wharfedale to form Castle Acoustics while Phil remained to run the Service  ...
     35  ~ 2014 mar 24top turnable plateLenko L75 turntable - Troels GravesenLenco L75 turntable , Jelko SA750LB, Dynavector XX2 mkII. Copyright 2012 ... Right: Top plate damped with 4 mm bitumen pads. This takes  ...
     37  -1 2014 may 31illuminatorJenzen- Illuminator - Troels GravesensJenzen Illuminator is a follow-up to Jensen 1071. I'll keep the Jensen 1071 on the website as quite a few people have built it - and liked it. Please check builders' ...
     38  +19 2014 jun 23parent power tweeterTJL3Wbuilt by Kuisma/First tests were made in my parent's house (wood construction) and there bass section
     38  +63 2014 apr 08wharfedale speaker systemsWharfedale_CabinetModels_1962_page1-8.pdf - Troels Gravesenloudspeaker system to a 15 watt amplifier for ordinary ... be used with efi'icient speaker systems . .... sound source for which Wharfedale speakers have long.
     40  +5 2014 may 20dali speakersRenovation of Dali 800 speakers . - Troels GravesensTaking the Dalis onto the test-bench proved to be slightly embarrassing, because we had both found the Dali 800 a fine and easy-to-listen-to speaker with ...
     40  ~ 2014 apr 23flex speaker listEllam- FLEX -3W - Troels GravesenBi-amping the Ellam FLEX 3W takes the Ellam F3W speaker to another level. ... The parts' list covers both version as it only takes 4 more resistors. For full ...
     44  -2 2014 jun 12obligato gold set cheap300B NFB SET - Troels GravesensFor reference I had the AVVT and some cheap Chinese valves.
     44  +57 2014 jun 06dit construction websitesFeel sure I need your response to make this website better. I have a lot of ... Four drivers and the best SEAS construction I've ever made.
     46  +38 2014 jun 12scan speak subwooferSeveral months of work went into this design and it's so far the biggest ScanSpeak construction I've ever made. The Jenzen Illuminator features a stepped front ...
     46  +20 2014 jun 055 inchSEAS 5INCH - Troels GravesensFrom left: SEAS CA15RLY, W15CY001 and W15LY001, Tweeter: 22 TAF/G ( H1283) Click images to go to construction. Click driver id for full data (SEAS website).
     46  +13 2014 may 23tannoy
     47  -5 2014 jun 10jbl germanyJBL L100 Century - Troels GravesensThe kit is suitable for those JBL variants using the 123A woofer, LE5-2 midrange ..... This German up-grader got it right: Free of nearby boundaries and a much ...
     47  +54 2014 jun 01vintage scan designVintage . Feature articles, tips, ideas, cabinet damping, coils, etc. My system, amps
     47  +5 2014 may 28cabinet ready crossoverJBL L100 Century, - Troels GravesensGo to: CABINET CROSSOVER KIT ... a new high-quality 60-teeth blade, it cuts pre-veneered 22 mm MDF like butter, leaving razor sharp edges ready for gluing.
     47  +45 2014 may 22tannoy speakerRead here: tm. I rush to tell that I did not become a Tannoy owner this time due to price. Something in the range of 2,000 USD is ...
     47  -25 2014 apr 15trafo step upTranscendent RIAA - Troels GravesenLink to Silk MC step up transformer from SAC/Thailand ... providing 52 dB gain, is currently used with my Dynavector XX2 mkII cartridge through SILK trafos and ...
     48  -28 2014 may 18single driverIf we want a single driver to do it all, the driver cone simply cannot be very big in order to keep mass low and maintain some treble level, and the price to pay is ...
     49  -29 2014 jun 30tannoy hi fi speakersVintage HiFi - Troels GravesensA pair of Tannoy Monitor Gold IIILZ drivers were available on ... No, they are not aural nirvana - few speakers are - but they ...
     49  +38 2014 apr 08crossover speaker designIn most cases you will need a new crossover and I would need your speaker on my test bench to tell ... The Jenzen speakers , 3-way TL designs .
     49  +29 2014 mar 29tune box software
     50  +51 2014 may 08thd cap digital300B NFB SET - Troels GravesenAfter some serious coupling cap tests, this amp delivers some of the most .... Digital was Shanling T80 with silver/gold coupling caps and WE396A tubes in buffer ...
     52  +12 2014 may 182 way cabinet ready crossoverellam flex cabinet page for details on construction - Troels GravesensDue to the intrinsic bracing of a TL, the panels used here are not critical. But first the 2 - way cabinet . Left: Outer mid front panel (made in one piece here for the ...
     52  +29 2014 apr 16cabinet de scanScanSpeak Projects - Troels Gravesen2-way floorstander from ScanSpeak 18WU/4741T00 + D3004/660000 or R3004/ ... The 18W/8531G00 can go low in a suitable top cabinet and possibly a simple ...
     53  -20 2014 mar 30jbl replacement driversThe quality build of these old JBL drivers is excellent and they hold qualities not ... I've never done foam surround replacement on such a large driver before and ...
     55  -27 2014 jul 01van den hulvan den Hul Grail phono stage - Troels GravesensGood fortune gave the opportunity to audition the van den Hul Grail phono stage. Having enjoyed my 6C45pi phono stage for a long time - and being very ...
     58  ~ 2014 jun 21studio speakersStudio -101 - Troels GravesensOnly a few speakers were well balanced like the BBC studio monitors , e.g. LS35A, BC1, etc., thus the distinction between home speakers and studio monitors .
     58  -16 2014 may 05dipole woofer simulation softwareWide Baffles - Troels GravesenThe obvious next step would be the dipole bass, but I've had my share of ... with a close simulation of what you hear in a concert hall in terms of envelopment. ... Any driver mounted on a baffle will have an f3 = 11,600/width of baffle in cm.
     59  +42 2014 may 28cinetsonVoigt horn for the SP200X from Rodolphe in France and he mails this link ( page 6):
     59  -22 2014 may 02jbl speaker parts
     60  ~ 2014 may 07sonus faber stradivariWide Baffles, introduction, Stradivari , how does ... - Troels GravesenThe launch of the Stradivari by Sonus Faber has created quite a debate and what has been argued against wide baffled speakers is some loss of pinpoint ...
     62  -4 2014 jun 25audio amp kit 2 way active crossoverIn most cases you will need a new crossover and I would need your speaker on my test bench
     62  +39 2014 jun 02speakers fine tuningBuilding speakers has be on and off since high school, but with the ... clear that doing crossovers by calculation and fine - tuning by ear had its shortcomings.
     62  ~ 2014 apr 05horn speakers diyThe Fostex construction at Nelson Pass' website may be the best compromise if it has to be "the one and only":
     64  ~ 2014 jun 13ez leveler ii hong kongEZ_Line-stage - Troels GravesensEZ Line Stage from diyhifisupply, Hong Kong ... Then comes another piece of music suggesting this doesn't come with the level of resolution it could be.
     64  ~ 2014 may 15teflon wirecables - Troels GravesensBy request, a few notes on my cables and interconnects. ... So, I bought 0.4 mm pure silver wire and teflon tubes and changed all interconnects in my system to ...
     65  -37 2014 may 24tannoy speakers
     65  -5 2014 may 22waveguide speaker technicalWhy bother about 95-100 dB/1 watt speakers when we have almost unlimited
     65  -21 2014 may 18acappelaAcapella SEasThe non- - Troels GravesensThe all-SEAS Acapella . Fooling around with the Aurum Cantus G2Si ribbons and the SEAS T25C001 dome tweeters, it appeared that these drivers have exactly ...
     68  +33 2014 may 18jbl bassThe JBL Kit is doing well and it's time to assemble my own "L100" from my eBay purchases. A true L100 box replicate it won't be because the 123A bass driver ...
     70  ~ 2014 jun 08cap ufsuper- caps - Troels GravesensWe're used to paying in the range of 4-6 USD for a 4.7 uF standard PP, where a similar super cap is around 20-40 USD. Quite a difference. Caps , like coils and ...
     71  +30 2014 may 14hight end speakerWhy bother about 95-100 dB/1 watt speakers when we have almost unlimited ... Also remember that the high - end audio establishment didn't take long to dismiss  ...
     71  -20 2014 mar 24buy tweeter addsVifa C17WH- - Troels GravesenI've been looking at the Monacor DT300 tweeter for some time and finally decided to buy a pair. ... The blue is when we add the impedance correcting RC circuit.
     72  +3 2014 may 18superior crossSP JENSEN 1071 Superior Cross Cap + C-Coil - Troels GravesensJensen's 1071 Scan Speak kit. Design © Troels Gravesen. Superior / Cross Cap + C-Coil Version. 23-01-2011 contact@jantzen-audio.com. Coils: dim. mm.
     72  +29 2014 apr 11silcer coated ptfe wirecables - Troels GravesenSo, I bought 0.4 mm pure silver wire and teflon tubes and changed all ... Jantzen Audio 13 AWG (2.6 mm^2) silver plated copper in PTFE sleeve used for main ...
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