Updates 2005-2020
Go to builders' response
31-12-2020:
The Loudspeaker-III Happy New Year!
17-12-2020:
SEAS CNO-4, with new W18NX003 midbass
17-12-2020:
New SEAS W18NX003 midbass driver, intro
07-11-2020:
ScanSpeak Discovery-CENTER
24-10-2020:
ScanSpeak Discovery-861, 2½-way floorstander
03-10-2020:
Use a Hypex FA251 or FA501 as a power amp for bi-amping
11-08-2020:
Page with links to all Hypex files
07-08-2020:
Thöress EHT Integrated amplifier. Can you handle the truth?
04-08-2020:
Faital 3WC-15, 15" version of the Faital 3WC
19-07-2020:
TEST: 6" and 8" midrange drivers
19-07-2020:
TEST:
Purifi PTT6.5-W04 6" midbass driver
19-07-2020:
TEST: Viawave GRT-145W-8, ribbon tweeter with waveguide
08-06-2020:
Test Audio Technica ART1000 cartridge
04-06-2020:
Cabinets for the Faital 3WC available from EBEL Holztechnik
10-04-2020:
Edge-coating of drivers
04-03-2020:
Update to Ellipticor-3 speaker. Hypex FA501 plate-amp/DSP, high-level
input
27-02-2020:
Kit prices ready for The Loudspeaker -2
16-02-2020:
Testing ScanSpeak D2104/712000 3/4" dome tweeter
13-02-2020:
The Loudspeaker-2
13-02-2020:
More Faital 3WC stuff, Beryllium version
26-12-2019:
Faital 3-Way Classic, 93 dB sensitivity, stunning dynamics
08-12-2019:
ScanSpeak Ekta-25, 2½-way, 18W/8542-10/D2608/913000
19-11-2019:
ScanSpeak Ekta 2D, digital 2-way
15-10-2019:
Up-date on Hypex FA251 and FA501 for
FUSION-BAD and
MUN-17 speakers
29-08-2019:
SEAS CNO-GRANDE, the final CNO speaker
08-08-2019:
Edge-coating and linear distortion, prelude to CNO-GRANDE construction
08-08-2019:
New copper foils caps, AMBER-Z, from Jantzen Audio, review
28-07-2019:
SEAS CNO-25-mkII,
update with simpler crossover and time-aligned drivers
26-07-2019:
SEAS CNO-mkIII,
update to a popular construction
03-06-2019:
Bass module for SBA-741 and other smaller 5-6"+1" stand-mounts
23-05-2019:
Müll oder gut für ein Schlechtwetterprojekt? Vintage Isophon P25A.
18-05-2019:
SBAcoustics SBA-741
09-05-2019:
ScanSpeak Studio 101 mkII
09-05-2019:
ScanSpeak 32W/4878T11 for Ellipticor-3 now ready for sale
06-05-2019:
High-pass filter for power amps
11-03-2019:
SBAcoustics, SBA-761, floor-stander, 1st order filter
05-01-2019:
Loudspeaker Modelling by Geoff Hill
31-12-2018:
ATELL-3, ScanSpeak/AudioTechnology/Viawave 10-12-2018:
SBAcoustics SB29BAC-C000-4 Be dome. Test. 06-12-2018:
ScanSpeak Ellipticor-3, four-driver construction, 1st order filters
06-12-2018:
My workshop turntable, Denon DP67L/Moerch vdh DP6/Colibri
06-12-2018:
New CD-player/DAC, EAR Acute Classic 25-11-2018:
SBAcoustics Satori 3-Way Classic, SBA-941
16-10-2018:
ATB,
powerful 2-way from AudioTechnologand BlieSMa drivers
15-08-2018:
Update Hypex FUSION FA252 plate-amp/DSP 15-08-2018:
FUSION-3, Hypex powered speaker 08-07-2018:
Updated file on chamfering driver holes. A scary example!
17-06-2018:
Testing new ScanSpeak Ellipticor 21WE/4542T00 midbass driver
22-05-2018:
Testing BlieSMa T34B-4 Beryllium dome 09-05-2018:
Ellipticor-4 16-04-2018:
The Loudspeaker, your final speaker? 16-02-2018:
Testing new 34 mm dome tweeter from BlieSMa 13-02-2018:
Ellipticor-1, ScanSpeak Ellipticor drivers 08-02-2018:
BOOKSHELF-3WC 07-02-2018:
FUSION BAD (Bi-Amp-DSP)
nn-nn-2018:
Testing ScanSpeak D2608/913000 tweeter and comparing to D3004/660000
14-12-2017:
FUSION, classic 3-way,12" bass driver, 6" midrange and 1"
tweeter 10-12-2017:
ATiRi,
two-way stand-mount. AudioTechnology/Viawave ribbon
10-12-2017:
Test ribbon tweeter, Viawave GRT-145-4 18-09-2017:
Ekta mkII. A classic brought to new life
03-09-2017:
LCR RIAA shoot-out, EAR-912 vs vdh The Grail vs Valab LCR-1
25-08-2017:
Peerless NOMEX-164 mkII, update on popular speaker
25-07-2017:
Updated Hypex plate-amp/DSP page 05-06-2017:
Bits and pieces from the Munich 2017 High End Show 03-06-2017:
Bi-amping,
what is it? Some hints and tips. 03-06-2017:
Link to Hypex plate amp page 01-06-2017:
ATS4-HE, high-efficiency version of my reference speaker
22-05-2017:
ScanSpeak MUN17-3W, powerfull 3-way 18-04-2017:
Testing Audio-gd pre-amp/headphone amplifier NFB-1AMP 15-04-2017:
SBAcoustics SBA-10, now with Be dome 13-04-2017:
SBA MW16 MTM with Be dome, TW29BN 09-04-2017:
SBA
MW19 with Be-dome, TW29BN 30-03-2017:
Testing SBAcoustics Be-dome tweeter, the TW29BN 30-03-2017:
Building a new turntable from a 12 kgs alu platter with maglev
25-02-2017:
Renovating more Lenco L75 decks 20-01-2017:
SBAcoustics, SBA-16-MTM 13-01-2017:
Measuring inductance of low-DCR coils, like C-coils 13-01-2017:
Response to upgrade from standard PP caps to super-caps
28-12-2016:
Test ATC SM75-150 midrange dome 08-12-2016:
ScanSpeak 3W-Classic - Classic, Eton 4-300-25Hex midrange
05-12-2016:
ScanSpeak 3W-Classic - Classic, Vifa PL11WH09-08 midrange
01-12-2016:
ScanSpeak 3W-Classic - Classic 18-11-2016:
Up-Grade Kit for JBL L112 09-11-2016:
SBA Studio Monitor MW19, for studios and home
01-11-2016:
B&W 802s3 Up-Grade Kit 06-09-2016:
8008-CORNER, construction for near-wall placement
13-08-2016:
UP-GRADE: TQWT/DTQWT mkII to mkIII on flat front panel
09-08-2016:
ScanSpeak Illuminator-4 21-05-2016:
SBAcoustics SBA-10, 10" bass and Satori mid and tweeter
14-05-2016:
Munich High-End Show 2016, some impressions. 11-05-2016:
Testing Alumen Z-Caps from Jantzen Audio, a new foil capacitor
09-04-2016:
SBAcoustics 61-NRXC, two-way stand-mount
09-04-2016:
Update on SBAcoustic tweeter measurements, Satori TW29RN-B
11-03-2016:
SBAcoustics 61-MFC, two-way stand-mount
06-03-2016:
My
Panasonic TV, better sound on a weekend 13-02-2016:
SBAcoustics 61-NAC, two-way stand-mount
13-02-2016:
Up-date, OBL-15, alternative Faital bass driver 31-01-2016:
Beaming, what is it? 12-01-2016:
SBAcoustics 3-Way Classic 06-01-2016:
Subwoofer experiments, part II, now with
measurements
27-12-2015:
Update to AudioTechnology 3-Way Classic: Using the Illuminator
D3004/604010 Be dome
26-12-2015:
Update to Illuminator-5 construction: Using the Illuminator D3004/604010
Be dome
25-12-2015:
Testing two SBAcoustics dome tweeters, the SB29RDC-000-4 and
SV26ADC-C000-4
06-12-2015:
Subwoofer experiments, Part 1, ScanSpeak 26W/4558T00, Hypex DS 4.0
plate amp 22-11-2015:
Update to Discovery W12 construction, now with the new Be dome,
D3004/604010 22-11-2015:
OBL-15, the successor of OBL-11, now with the new JA8008-HMQ driver
12-11-2015:
Test ScanSpeak D3004/604010 Be domes 24-08-2015:
AudioTechnology 3-Way Classic 19-07-2015:
Test of two ScanSpeak ring-radiators, R3004/662000 and R3004/602010
09-07-2015:
ILLUMINATOR-5, all the best from ScanSpeak 26-04-2015:
ScanSpeak Revelator 4R, mini from 15W/4531G00 and R2604/832000
02-04-2015:
DISCOVERY W12, build a small 4 litre high-quality mini
26-03-2015:
CENTER-641 Center Speakers from SEAS Prestige and EXCEL driver
22-02-2015:
DISCOVERY-4, make an affordable high-end speaker from ScanSpeak drivers
20-02-2015:
How
flat is flat? Does a flat frequency response matter?
07-02-2015:
Restoring two old Lenco turntables, L75 and L78. What my cell phone
captured during the many hours of work.
28-12-2014:
Quite a few
updates on tips and tricks
07-12-2014:
Update to QUATTRO speaker
with new JA8008-HMQ driver
28-11-2014:
Ellam Discovery 15, an amazing 5+1 mini from affordable drivers
22-11-2014:
8008-CENTER mkII ready. Center surround speaker for TQWT and DTQWT
28-10-2014:
New TQWT mkIII, DTQWT mkIII and DTQWT-212 mkIII constructions
20-10-2014:
New JA8008-HMQ driver for TQWT and DTQWT constructions
19-10-2014:
Ellam-9800 mkII. It's been almost ten years since the first version! 24-08-2014:
My Turntables. Why I listen to vinyl records 03-08-2014:
SEAS 3-Way-Classic-mkII, it had to come, higher efficiency, better
crossover 15-06-2014:
ScanSpeak 3-Way Classic, a lot of excellent sound for modest investment 11-04-2014:
SEAS NEXT4 speaker construction. Four drivers and the best SEAS
construction I've ever made. 21-03-2014:
Test of SEAS C18EN001 coax driver. Have high expectation from this
driver in future constructions. 15-02-2014:
Update on Tips & Tricks - and for those who haven't seen this page
before. 10-02-2014:
Room Acoustics. Thoughts from Speakers' Corner with a few added
comments. 01-02-2014:
Discovery W18, 2-way ScanSpeak from affordable drivers. Experience four
different crossovers and two different front panel options.
25-11-2013:
ScanSpeak Micro. 5F/8422T01, the smallest speaker I've ever made
02-11-2013:
ATS-4, my most ambitious project so far. The
best from AudioTechnology, ScanSpeak and Jantzen Audio
02-11-2013:
Test of ScanSpeak mini full range drivers,
5F/8422T01 and 10F/8414G10 21-09-2013:
Test of ScanSpeak D2908/714000 Beryllium dome. 14-06-2013:
Ellam FLEX 3W,
the mini-Jenzen from ScanSpeak 22W/4551T00, 15W/8530K00, D3004/660000
and three other tweeters. 30-05-2013:
Ellam FLEX, two-way mini from ScanSpeak 15W/8530K00 and four
tweeter options. 28-05-2013:
TQWT/DTQWT-10/DTQWT-12 T35 options.
The SEAS T35C002 dome adapted to the most popular constructions. 04-04-2013:
Measurements of SEAS T35C002 large dome. Added to
Large Tweeter Domes' file. 25-03-2013:
Test of van den Hul The Grail
phono stage. 13-03-2013:
Why my crossover layout may differ from
actual schematics. A very common question. 08-03-2013:
Electronic crossovers, pros and cons. 22-02-2013:
Up-dated Ekta
Grande file. New cabinet drawings, crossover layout,
updated parts' list. 10-02-2013:
Jenzen ATS,
AudioTechnology 10C77/18H52 and ScanSpeak Be dome. The
most extensive cabinet work ever. 27-01-2013:
Power
handling of loudspeaker systems. 26-01-2013:
Re-building a ProJect RPM4 turntable. For sale.
26-01-2013:
Up-date in Lenko L75 turntable. Two top-plates
spray lacquered and friend's L75 renovated with new plinth.
23-11-2012:
Update on JUNGSON/HEDO/DURO power amps. Expert
looking at schematics and calc. actual class A operation
09-11-2012:
DTQWT, 10 or 12 inch. Which should I build?
23-10-2012:
24 bit high-res
18-10-2012:
Jenzen Accu mkII, use
Jenzen-D front panel design with minor changes to the tweeter crossover
06-10-2012:
SEAS CURV, mini two-way
from SEAS U16/RCY/P and SEAS 29 TFF/W
11-09-2012:
What are the Jenzen
speakers? Read here about the rationales behind the speakers
20-08-2012:
Jenzen D mkII. I'm happy
having these diamonds running again. New front layout and a few x-over
mods
08-08-2012:
Restoring/modernising a
Lenco L75 turntable. Lenco L75, Jelko SA750LB, Dynavector XX2 mkII
20-06-2012:
Illumina-66, two-way
floorstander from ScanSpeak 18WU/4741T00 and D3004/660000 or
R3004/662000
20-05-2012;
Super caps. What are they
and why are they so costly?
17-05-2012:
Jenzen Illuminator, 3-way
TL design from ScanSpeak W26/8861T00, 18WU/8741-T00 and D3004/660000
09-05-2012:
Jungson DURO power amp added to my stock gear
28-03-2012:
More on waveguides for
ScanSpeak tweeters
24-02-2012:
Test of ScanSpeak
tweeters, D3004/660000 and D2904/710003, updated with D3004/6640
Beryllium dome
15-02-2012:
Jenzen Diamonds, 3-way TL
from AudioTechnology 10C77-25-10-KAP, Accuton C176-6-191E and Jantzen JDT1024 diamond tweeter.
02-02-2012:
ScanSpeak Illuminator.
Twenty liter stand-mount from 18WU/8741T00 and D2904/710003 - or make a
30L floorstander
27-01-2012:
Test of DiyHiFiSupply EZ
line stage
27-01-2012:
Waveguide for ScanSpeak
D2904/710003 tweeter
27-01-2012:
Tweak #7 for DTQWT,
D2904/710003 with waveguide
30-12-2011:
Test of ScanSpeak tweeters, D3004/660000 and D2904/710003
27-12-2011:
Eight plus One, Christmas holiday experiments on a
powerful 2-way from 8" bass/1" dome with a simple crossover
at 1.5 kHz.
12-12-2011:
My speaker cables and interconnects (by request)
05-12-2011:
Jenzen Accu
30-10-2011:
Test of MANGER MSW transducers.
28-10-2011:
Tweaking SWANS RT2H-A planar tweeter for better
performance
25-10-2011:
Updated file on Tannoy MG15 crossover kits
24-10-2011:
JBL L100 Up-Grade Kit now available in four grades.
12-10-2011:
Jenzen SEAS
NEXT T25
and -T29. The luxury versions of Jenzen SEAS ER
07-09-2011:
Jenzen SEAS
ER
and
CA
constructions. Making high-end sound from budget drivers
26-08-2011:
YAMAHA NS1000M Up-Grade Kit
11-08-2011:
Accuton C30-6-024 tweeter measurements added to large
dome tweeter article
24-06-2011:
8008-CENTER, the missing link to a complete surround
set, built around JA8008/TW034 drivers
06-04-2011:
Review
of vintage Snell A3i loudspeaker
23-01-2011:
Re-building
my Audio Mirror 6AS7 mono blocks for 6C33 tubes
03-01-2011:
Blackcones,
vintage SEAS 21 TV-G and SEAS 9 TV-LG, my Christmas break
fun project and final chapter on resonant boxes
18-12-2010:
OBL-11,
Open Baffle Loudspeaker. My homage to Gilbert A. Briggs' SFB.
07-11-2010:
Final
chapter on vintage German greencones
07-11-2010:
Building
an all Russian tube phono stage based on Transcendent schematics
16-10-2010:
Russian
6N6P tubes for my WOT linestage
26-09-2010: Tannoy
Monitor
Gold MG15 again.
Articles on
Upgrade
Crossover,
The
MG15 Problem
and
Updated
2005 article.
18-09-2010:
Up-date
on "Amps for DTQWT" file. FAQs on bi-amping plus/minus
electronic crossovers
28-08-2010:
Tweaking
the DTQWT, incl. intro to TQWT-mkII and DTQWT-mkII
16-08-2010:
Modifying
Audax TW034XO-P47N dome
11-08-2010:
QUATTRO,
2-way from JA8008/TW034 IN 40 liter vented standmount
18-07-2010:
Large
tweeter domes, part I. Chario Sonnet dome, Audax TW034, Ciare MT320,
Ciare PT383
01-06-2010:
Test
of Chario Academy Sonnet speaker from a diy'ers perspective
11-05-2010:
PRELUDE,
3-way from AudioTechnology 10C77 bass and 15H52 mid + ScanSpeak 9900
tweeter
24-04-2010:
2½-way
floorstander from SEAS CA18RNX + SEAS 27TDC
24-04-2010:
Vintage,
German SABA greencones, pics, links and some modelling
06-04-2010:
2½-way
floorstander from Peerless NOMEX 164 (830875) and ScanSpeak D2608/9130
18-02-2010:
Study
on stepped baffles with little impact on tweeter performance
11-01-2010:
Siri's
Killer Note; how female vocals can make your hair turn grey
(- if it wasn't already)
03-01-2010:
Some
thoughts on amps for TQWT and DTQWT speakers
26-12-2009:
New workshop
amplifier: JungSon JA88D-09.
18-12-2009:
SP98-09, new
crossover and cabinet for ScanSpeak 18W/8531G00 and
D2904/9800 tweeter.
05-12-2009:
Christmas Month
Special: Make your own non-inductive graphite resistors!
01-12-2009:
The importance of
chamfering driver holes. A small study.
21-11-2009:
Calculation of
box volume and ports. Can we calculate box volume at all?
05-11-2009:
WWDT, world's
worst dome tweeter, PHILIPS AD-0160-T8.
01-11-2009:
10C77 Audio
Technology sandwich cone bass drivers under test.
01-11-2009:
Update, Garrard
401/Thorens TD124 shootout.
29-10-2009:
Vintage
ScanSpeak. W21-3804-P2A and D3804 drivers.
09-10-2009:
Ellam d'Appolito
from ScanSpeak 15W8530G00+Vifa XT25TG-30-04.
08-10-2009:
AT-SW: 2-way
compact BR from AT 18H52 midbass and modified SWANS
planar tweeter
19-09-2009:
Why it's not so
easy to make a small mini into a 3-way. Based on numerous
mails.
03-08-2009:
5687 line stage
finally finished! Or is it? Will it be a 7119 line stage
with grid battery bias?
27-07-2009:
Vintage Sonab OA5
mkII speakers, the first omnidirectional speaker on this
website.
07-07-2009:
Garrard 401/LINN
- Thorens TD124 mkII/Jelko shootout!
04-07-2009:
STUDIO 101, 13
liter stand-mount speaker from SS 18W/8542-00 + SEAS
27TFFC
14-06-2009:
Jensen 1071, big
3-way from SS 26W/8861T00 + 18W/8531-G00 + D2905/9900.
25-05-2009:
Vintage SEAS
3-way from 1978. "Clarion by SEAS, 70120"
15-05-2009:
OB9, 2009 open
baffle set-up. 15" bass driver and electronic
crossovers!
14-05-2009:
Mark21, 2 x SS
21/8554-00 + 15M/4531-K00 + XT25TG, built by
Mark/Denmark.
13-04-2009:
Center speaker
from Peerless HDS 831882 + Vifa XT25TG
22-03-2009:
Jazzman, 3-way
ScanSpeak with 22W/8857T00 + 15W/8530-K00 + Vifa XT25TG
16-03-2009:
Ellam-25, Ellam
XT 2½-way construction, compact floorstander
20-02-2009:
CNO-25, 2½-way
CNO. 36 liter floorstander.
15-02-2009:
Modification of
my 300B SET amp. Valve expert gives advice, but is it
audible?
12-02-2009:
MAYA, SEAS
CA18RNX + T25C003, 24 liter floorstander.
31-01-2009:
SEAS TOK, 24
liter floorstander or bookshelf, CA18RNX+T29CF002 (!)
29-01-2009:
CNO-T25, CNO
construction with T25C003 tweeter
29-01-2009:
CNO mkII,
brush-up on a popular floorstander.
25-01-2009:
SP44, SS
18W/8531G00 + Accuton C244-8 + HIQUPHON OWI
18-01-2009:
Peerless mini,
HDS134-PPB (830860) + DX25TG05-04 or XT25TG30-04
01-01-2009:
PL14-d'Appolito
added to PL14-COMPACT version
30-12-2008:
SEAS CA18RLY +
22TAF-G COMPACT 16 liter monitor (or 24 liter
floorstander)
28-12-2008:
How to choose the
right first-time diy speaker project. Some general
advice.
27-12-2008:
Vifa PL14WJ09-08
+ XT25TG30-04, 11.5 liter mini
22-12-2008:
Supravox
full-range experiments in DTQWT cabs.
08-12-2008:
Response on JBL
L100 Century Upgrade Kit
21-11-2008:
More 10"
bass drivers tested for DTQWT.
10-11-2008:
Vintage 16 ohms,
12" bass drivers suitable for DTQWT
22-10-2008:
The Cyclop; big
10+5+1 inch 3-way floorstander from SEAS Nextel drivers.
30-09-2008:
300B SET
integrated amplifier project; comparing coupling caps.
15-09-2008:
Mail exchange
with former Wharfedale employee on Super 8/RS/DD and
other things.
23-08-2008:
DTQWT - the best
- and biggest - speaker I've ever made.
19-07-2008:
Compact Studio
Monitor, ScanSpeak 18W/8545-00+Vifa XT25TG-30-04
19-07-2008:
Compact Studio
Monitor, ScanSpeak 18W/8545-K00+Vifa XT25TG-30-04
19-07-2008:
Compact Studio
Monitor, ScanSpeak 18W/8545-nn+ XT25TG-30-04, intro
22-06-2008:
Wharfedale 1962
brochures, thanks to Spiros Agathagelidis/Sweden.
14-06-2008:
Scoperta, mini TL
with SEAS W15LY001 + Peerless HDS tweeter
12-06-2008:
SP38/13 as HTML
file.
07-06-2008:
Test of Lowther
EX3.
30-04-2008:
Minor up-date on
cabinet damping.
27-04-2008:
Renovation of
Dali 800 speakers.
24-03-2008:
Vintage JBL L100
recreation, new aperiodic cabinet.
01-03-2008:
ATR25: 2½-way TL
from AudioTechnology and Raidho drivers, true high-end.
10-02-2008:
Tips on tweeter
measurements, microphone set-up, etc.
16-01-2008:
Update on
placement of coils in crossovers. Impact on
inductivity from aluminium.
24-12-2007:
Acapella NEXT, the best
Acapella? SEAS W22NY001 + W18NX001 + T29CF001
11-12-2007:
Three
mini-monitors from SEAS W15CY001, W15LY001 and CA15RLY.
10-12-2007:
Cabinet damping, preliminary
report.
10-12-2007:
Shipping drivers (I'm fed up with
poorly packed drivers!)
06-11-2007:
JA8008/TW034,
high-efficiency 2-way in TQWT design.
06-11-2007:
High-End Kit for
Beginners.
06-11-2007:
Three speaker
kits for Jantzen Audio, 2-ways and d'Appolito.
05-10-2007:
Eekels minis, replacement for
the
W11XT. SEAS W12CY003
Nextel midbass and SEAS 22TAF/G tweeter.
30-09-2007:
Ekta-Grande:
Jesper has been working again and the Ekta has grown....
30-07-2007:
Two summer '07
fun projects: Up-date with some fullrange experiments
and a new crossover for the OB7.
01-08-2007:
Vintage JBL LE20
and LE25 tweeters, how good are they?
30-07-2007:
Two summer '07
fun projects: MAE1 single ended tetrode amp and
high-efficiency 3-way dipole, my SFB substitute.
27-07-2007:
Vintage JBL LE26
tweeters. Suitable for high-efficiency systems.
How to make a waveguide for LE26.
13-05-2007:
Revive your JBL
L100 Century loudspeakers with a new crossover kit from
Jantzen Audio.
12-05-2007:
Amish up-date, crossovers for
SS 18W/8545-00, 18W/8545-K00, D2905/9500 and D2905/9700,
any combination.
24-03-2007:
CNO, SEAS
W18NX001 + T29CF002/T29CF001, two-way
high-end floorstander in 24 litre cabs.
20-03-2007:
Why ScanSpeak
9500 and 9700 tweeters aren't the same.
16-03-2007:
Coils for
beginners. How to choose the right coils for your
project.
18-02-2007:
Tweeter
distortion test. By request some distortion tests and
comments on ribbon tweeters.
18-02-2007:
New HES-intro
page. This page about high-efficiency speakers
needed an update.
15-01-2007:
Vintage drivers,
the Wharfedale Super 3 tweeters.
12-01-2007:
Vintage drivers,
the Wharfedale Super 8 RS/DD, how good are
they?
11-01-2007:
Tweaking Supravox
215GMF. Fountek NeoPro5i and JBL LE26 tweeter
with waveguide.
11-01-2007:
Vintage drivers,
the Goodmans Axiom 150 mkII, restoration and
evaluation for coming projects.
11-01-2007:
24 liter
floorstander from ScanSpeak 18W/8542-00 + D2905/9700 or
9500.
01-01-2007:
High-efficiency
mini, Fostex FE126E + Fountek NeoCD3.
27-09-2006:
HES-II update. The Vifa C20
option.
23-09-2006:
C17-III-revised. Thanks to Åke
in Sweden, a few changes has been made to improve tweeter
performance.
10-09-2006:
C17-III built by Aake,
Sweden.
04-09-2006:
HES-II. Chapter II on
High Efficiency Speakers. A 55 litres two-way with 93-94
dB sensitivity is presented.
08-08-2006:
Vifa C17-II. Finally!
Simplicity is sometimes the most difficult thing.
18-06-2006:
Poor Man's
Strad/EXCEL, the EXCEL version of
PMS.
15-05-2006:
Poor Man's Strad. A wide baffled
speaker with a 91 dB sensitivity. SEAS CA22RNX + MCA15RCY
+ 27TFFC.
25-04-2006:
Images and
comments on SP38 and Ellam, built by Emil,
Macedonia.
23-04-2006:
SEAS W15CY001 +
HIQUPHON OWI mini-monitor.
12-04-2006:
SEAS Kit 503, vintage HiFi
speaker kit. How do these 25 years old speakers perform
compared to modern speakers?
08-04-2006:
Vifa C17-I, 95
dB/2.8 V d'Appolito from Vifa drivers - if you can
find them.
31-03-2006:
Philips vintage
9710, Third Chapter
- and the last one, I promise!
27-03-2006:
Ellam d'Appolito, low impedance,
high sensitivity. Try it and report back.
20-03-2006:
TJL floorstander. Two new tweeter
options, the Fountek NeoCD3 and the SEAS T25C001.
18-03-2006:
Ellam, monitor,
ScanSpeak 15W/8530-K00 + D2904/9800 tweeter.
18-03-2006:
Philips 9710
fullrange driver; what you can do and possibly should not
do.
18-03-2006:
Philips 9710,
9710 + NeoCD3 ribbon tweeter.
13-03-2006:
3WClassic, a 3-way, 90
dB/2.8V classic speaker made from SEAS CA22RNX + MCA12RC
+ 27TFFC. Easy crossover.
09-03-2006:
The TJL2W made my Henrik
in Norway.
08-03-2006:
Monacor SP200X +
Fountek NeoCD3, an easy 90dB/2.8V, 2-way for valve amps
and possibly fullrange fans.
05-03-2006:
Check SP93 made
by Graeme. Very nice work.
05-03-2006:
Pictures from the
workshop, March 2006 projects.
03-03-2006:
W15-NeoCD3, monitor from
SEAS W15CY001 + Fountek NeoCD3
28-02-2006:
Philips 9710, the Peerless
option
21-02-2006:
TJL3W available as pdf
file. Download from
here.
28-01-2006:
Acapella SEas, not an upgrade
but an alternative tweeter; however, changes the sound
radically.
20-01-2006:
The TJL3W, 24 litres
floorstander, SEAS W18E001 + SEAS W12CY001 + HIQUPHON OWI
08-01-2006:
Restoring the JBL
L26 Decade. Part I. Refoaming of bass drivers and a
new 4th order crossover.
01-01-2006:
The importance of
wiring a crossover correctly. Read mail from
Acapella builder.
11-12-2005:
SEAS
W15CY001+HIQUPHON OWI, mini-monitor, build by Andy,
US.
09-12-2005:
Scan-Speak
18W/8531G00+12M/4631G00+D2904/7000. New 3-way
construction, the Ekta.
24-11-2005:
Scan-Speak
18W/8543-00 + 13M/8636-00 + D2904/9800. New 3½-way
construction, the Zahra.
24-11-2005:
Design Criteria. How do we
choose the right points of crossover?
15-10-2005:
Tannoy MG IIILZ. More crossover
work.
28-09-2005:
Vintage BC1, Martin Colloms
has the explanation on the HF1300 tweeter.
28-09-2005:
SEAS T14RCY-P/H +
ScanSpeak D2010/8513.
23-09-2005:
Tannoy MG IIILZ, read here.
Crossover version 3 running. And tweeter phase problem
solved.
21-09-2005:
Peerless HDS164 +
Vifa XT25TG, diy-service for one of my friends
produced this 2½-way construction.
27-08-2005:
Vintage hifi, is it
worthwhile? Read about JBL drivers, Spendor BC1, LS35A,
Philips 9710 and more.
27-07-2005:
Acapella WB, wide baffle
experiments. Intro with links below.
17-07-2005:
High-Efficiency-Speakers. The never
ending search; some initial thinking here.
16-07-2005:
Tannoy Monitor
Gold, 15" aural nirvana? Lots of photos,
900 KB.
29-05-2005:
Acapella SE, build by Mark
in California.
04-05-2005:
W1500/97, monitor: 10.5 litre
vented enclosure. ScanSpeak 15W/8530K00 + D2905/9700.
22-05-2005:
W1501/95, monitor: 10.5 litre,
closed/(Vario-)vented: ScanSpeak 15W/8530K01 +
D2905/9500.
10-05-2005:
SP38/13 Crossover
and Construction Pictures.
15-03-2005:
Modified 2.5
Clone (Danish) Hans Buhl Houmøllers'
construction of the "2.95".
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