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High Efficiency
The quest for Hi-Fidelity through Hi Efficiency
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Sticky
Best blogs of the audio underground
Redboy
Jul 20, 2015
2
3
Replies
51
Views
10K
Sunday at 5:42 PM
Redboy
Sticky
DIY
Altec 2 Way Build ala JELabs - 802/32/414
marantzfan
Mar 8, 2018
39
40
41
Replies
800
Views
148K
Mar 2, 2023
ICTWoody
Sticky
All things Stephens Tru-Sonic
Leben
Apr 27, 2022
2
Replies
37
Views
2K
Jan 12, 2023
Audionut
Locked
Sticky
Sticky Index for High Efficiency
Ernie
Dec 23, 2018
Replies
0
Views
2K
Dec 23, 2018
Ernie
Sticky
DIY
My Altec Duplex Journey
marantzfan
Jul 12, 2015
2
Replies
29
Views
8K
Feb 6, 2018
TubeHiFiNut
EV Aristocrat as a subwoofer
Punker X
Nov 27, 2021
2
Replies
33
Views
1K
Wednesday at 3:03 AM
Punker X
I
RCA LC-1A SPEAKER CABINETS
ihmeyers
Mar 13, 2023
Replies
12
Views
286
Mar 14, 2023
gable
DIY
Altec cabinets…episode 1, the 614
Phillip Jeffries
Jan 31, 2023
2
3
Replies
44
Views
2K
Mar 11, 2023
Phillip Jeffries
DIY
Lansing Iconics - Kind of an Icon
Audionut
Mar 22, 2020
6
7
8
Replies
143
Views
10K
Mar 10, 2023
gilmorneau
G
Identified! Mystery horn.
Tsingtao_1903
Aug 19, 2022
Replies
18
Views
878
Mar 5, 2023
Tsingtao_1903
Matrix multicell horns - deconstruction and reproduction attempts
Tsingtao_1903
Nov 19, 2019
16
17
18
Replies
354
Views
30K
Mar 4, 2023
pm
P
S
Altec Curious in WI
sputhorx
Mar 3, 2023
Replies
5
Views
196
Mar 3, 2023
Leben
R
A7-8 project to begin
reagan
Mar 2, 2023
Replies
6
Views
188
Mar 3, 2023
Wardsweb
The Lowther Thread.....Drivers, Cabinets, Modifications, Listening Impressions
TubeHiFiNut
Feb 25, 2016
2
3
Replies
58
Views
7K
Mar 3, 2023
Poultrygeist
P
DIY
Crossover Help
Wntrmute2
Feb 27, 2023
Replies
13
Views
306
Mar 1, 2023
Pat McGinty
Altec 3000H Super Tweeter?
Audionut
Aug 31, 2021
Replies
16
Views
2K
Feb 25, 2023
Audionut
The final (Altec) frontier?
Baaronj
Sep 20, 2020
2
3
4
Replies
74
Views
9K
Feb 24, 2023
RonSSNova
R
I
Line Magnetic LM-222 Speaker
ihmeyers
Feb 15, 2023
2
3
Replies
40
Views
890
Feb 22, 2023
ihmeyers
I
DIY
JBL 2397 "Smith Horn"
Wardsweb
Feb 20, 2023
2
Replies
23
Views
398
Feb 21, 2023
Pup
P
B
DIY
Guitar Drivers
Billet
Jan 8, 2023
Replies
8
Views
300
Feb 18, 2023
Billet
B
2way medium sized CD based altec/jbl build ideas/?'s
Aleixo_Camara
Nov 30, 2022
2
Replies
36
Views
2K
Feb 17, 2023
jblnut
RCA Mono Horn System
Topper
Feb 10, 2023
2
Replies
28
Views
954
Feb 17, 2023
old_borg
Western Electric KS12027
Tsingtao_1903
Oct 7, 2020
2
3
4
Replies
68
Views
6K
Feb 17, 2023
ChrisAZ
C
Four-Oh-Nine
mhardy6647
Jan 3, 2023
3
4
5
Replies
98
Views
2K
Feb 16, 2023
tubav
T
Cast aluminum 808 multicellular horn.
Tsingtao_1903
Mar 4, 2022
7
8
9
Replies
166
Views
10K
Feb 16, 2023
Anton D
A
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