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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION.
Click on a see also (sa) or tracing (xx) to view detailed entries about a related subject.
The entries are in alphabetical order by magazine name and then in chronological sequence.
To obtain a copy of any magazine article contact your local public library or the publisher.

LOUDSPEAKER -- HORN
x   HORN LOUDSPEAKER
xx   LOUDSPEAKER

A high efficiency mid and high range horn-loaded enclosure.
AUDIO AMATEUR 1/1974 [Oct 1974] (v.5#1) pg. 11
Correction AUDIO AMATEUR 3/1974 [Feb 1975] (v.5#3) pg. 34

Bibliography of information on building a bass horn.
AUDIO AMATEUR 4/1976 [Dec 1976] (v.7#4) pg. 53

The folded-and-stapled bass horn. A unique low/mid-range enclosure made from plywood or particle board and epoxy-stiffened art board. Est. cost: $45.
AUDIO AMATEUR 1/1977 [Feb 1977] (v.8#1) pg. 10
Added Info AUDIO AMATEUR 2/1977 [May 1977] (v.8#2) pg. 72

Little big horn. A small, efficient folded horn enclosure for a 6" driver. Overall dimensions: 10" wide, 17" deep, 25" tall.
AUDIO AMATEUR 3/1978 [Sep 1978] (v.9#3) pg. 12

The DR10 horn. This horn-loaded cabinet design is dubbed a "Double Reverse" line.
AUDIOXPRESS Jan 2001 (v.32#1) pg. 52

The DR12 horn. A 12" folded-horn design without high-frequency rolloff.
AUDIOXPRESS Jul 2001 (v.32#7) pg. 18

The DR8 horn. Speaker project features an improved design for better horn efficiency in a smaller cabinet.
AUDIOXPRESS Nov 2001 (v.32#11) pg. 40
Correction AUDIOXPRESS Apr 2002 (v.33#4) pg. 64, 67

Building a highly analytical horn system. Combine the Altec 805B horn with the 288-8K driver and ES subwoofer for outstanding sound.
AUDIOXPRESS Mar 2002 (v.33#3) pg. 18
Added Info AUDIOXPRESS Oct 2002 (v.33#10) pg. 60, 61

The DR10a. Another in a series of folded horn designs features a 10" driver and great sound for moderate PA requirements.
AUDIOXPRESS Jun 2002 (v.33#6) pg. 16
Added Info AUDIOXPRESS Apr 2003 (v.34#4) pg. 66

Build your own axisymmetric tractrix horn.
AUDIOXPRESS Sep 2002 (v.33#9) pg. 28
Added Info AUDIOXPRESS Feb 2003 (v.34#2) pg. 61
Added Info AUDIOXPRESS Mar 2003 (v.34#3) pg. 68
Added Info AUDIOXPRESS Aug 2003 (v.34#8) pg. 20 (Lenghten the horn design)

The DR12a horn. Construction of a double reverse folded horn with a 12" driver.
AUDIOXPRESS Oct 2002 (v.33#10) pg. 22

The DR15a horn. A Double Reverse (DR) horn design that address the needs of owners of 15" drivers. Used as a backline bass or keyboard cab, or as a main PA in a large venue, it is more efficient with a wider bandwidth than any other single 15" cabinet. Est. cost: $200-$400.
AUDIOXPRESS Jan 2003 (v.34#1) pg. 16

DR5 horn. A compact, portable, folded horn stage monitor is fitted with a 5" woofer and two tweeters.
AUDIOXPRESS Jul 2003 (v.34#7) pg. 10

A corner mid-range horn enclosure for a PA system is built from particle board.
SPEAKER BUILDER 3/1980 [Sep 1980] (v.1#3) pg. 15
Added Info SPEAKER BUILDER 4/1981 [Nov 1981] (v.2#4) pg. 39, 41

The tractrix horn contour. The history and operating principles of a horn loudspeaker developed by Paul G.A.H. Voigt in the 1920's.
SPEAKER BUILDER 2/1981 [May 1981] (v.2#2) pg. 9
Added Info SPEAKER BUILDER 2/1982 [May 1982] (v.3#2) pg. 35

Exponential (low frequency) horn can be approximated with a triangular-shaped piece of particle board installed in the corner of a room and sloping in toward the ceiling. Almost any driver can be used.
SPEAKER BUILDER 2/1982 [May 1982] (v.3#2) pg. 34

A horn loaded Heil. A conical-exponential horn with a rectangular throat area is combined with a homebuilt Heil air motion transformer (driver). Part 1.
SPEAKER BUILDER 3/1982 [Oct 1982] (v.3#3) pg. 7

A horn loaded Heil. Part 2. Constructing wooden horns, fiberglass horns, mounting platform, and the Heil driver.
SPEAKER BUILDER 4/1982 [Feb 1983] (v.3#4) pg. 16
Added Info SPEAKER BUILDER 1/1983 [Jun 1983] (v.4#1) pg. 41
Added Info SPEAKER BUILDER 6/1994 [Aug 1994] (v.15#6) pg. 53

70Hz mini horn. A corner horn enclosure approximating a cube (20" on a side) with a 6" driver. Built of plywood or particle board. Est. cost: $40.
SPEAKER BUILDER 2/1983 [Aug 1983] (v.4#2) pg. 7
Added Info SPEAKER BUILDER 4/1984 [Dec 1984] (v.5#4) pg. 38, 40
Added Info SPEAKER BUILDER 1/1985 [Feb 1985] (v.6#1) pg. 42
Added Info SPEAKER BUILDER 1/1986 [Apr 1986] (v.7#1) pg. 54, 56
Added Info SPEAKER BUILDER 4/1986 [Oct 1986] (v.7#4) pg. 46
Added Info SPEAKER BUILDER 1/1989 [Jan 1989] (v.10#1) pg. 60
Added Info SPEAKER BUILDER 5/1989 [Sep 1989] (v.10#5) pg. 58

Comments on the use of 2-by-5 and 2-by-6 piezo horn tweeters.
SPEAKER BUILDER 3/1984 [Aug 1984] (v.5#3) pg. 42
Added Info SPEAKER BUILDER 1/1986 [Apr 1986] (v.7#1) pg. 56
Added Info SPEAKER BUILDER 3/1986 [Aug 1986] (v.7#3) pg. 52

The Edgar midrange horn. Constructing and testing a wooden 300Hz tractrix expansion horn design with a 9"x18" mouth and 2"x2" throat.
SPEAKER BUILDER 1/1986 [Apr 1986] (v.7#1) pg. 7
Correction SPEAKER BUILDER 2/1986 [May 1986] (v.7#2) pg. 44
Correction SPEAKER BUILDER 3/1986 [Aug 1986] (v.7#3) pg. 48
Correction SPEAKER BUILDER 2/1987 [May 1987] (v.8#2) pg. 65
Added Info SPEAKER BUILDER 1/1988 [Jan 1988] (v.9#1) pg. 54
Added Info SPEAKER BUILDER 3/1997 [May 1997] (v.18#3) pg. 51

Dimensions for the JBL 4520 rear-loaded horn enclosure using two 15" drivers.
SPEAKER BUILDER 2/1986 [May 1986] (v.7#2) pg. 54
Added Info SPEAKER BUILDER 8/1996 [Dec 1996] (v.17#8) pg. 54

Tractrix horn design program (written in BASIC) calculates the dimensions.
SPEAKER BUILDER 4/1986 [Oct 1986] (v.7#4) pg. 29
Added Info SPEAKER BUILDER 4/1990 [Aug 1990] (v.11#4) pg. 60
Added Info SPEAKER BUILDER 5/1990 [Sep 1990] (v.11#5) pg. 86
Added Info SPEAKER BUILDER 6/1990 [Nov 1990] (v.11#6) pg. 94

General information on the Lee-Catenoid corner horn speaker.
SPEAKER BUILDER 1/1988 [Jan 1988] (v.9#1) pg. 52

Tips on calculating the optimum throat/slot sizes on a Klipschorn-style horn-loaded loudspeaker.
SPEAKER BUILDER 1/1990 [Feb 1990] (v.11#1) pg. 58

The Show Horn. Clear, step-by-step instructions for designing and building a bass horn loudspeaker enclosure incorporating a 12" driver.
SPEAKER BUILDER 2/1990 [Apr 1990] (v.11#2) pg. 10
Added Info SPEAKER BUILDER 4/1990 [Aug 1990] (v.11#4) pg. 80, 84
Added Info SPEAKER BUILDER 6/1990 [Nov 1990] (v.11#6) pg. 73
Added Info SPEAKER BUILDER 4/1993 [Jul 1993] (v.14#4) pg. 76
Added Info SPEAKER BUILDER 3/1994 [Apr 1994] (v.15#3) pg. 71
Added Info SPEAKER BUILDER 4/1995 [Jun 1995] (v.16#4) pg. 55
Added Info SPEAKER BUILDER 3/1997 [May 1997] (v.18#3) pg. 52

Solving the Klipschorn throat riddle. Mathematical model of the rationale behind the constricted throat opening used in the Klipschorn and Speakerlab SK loudspeakers.
SPEAKER BUILDER 4/1990 [Aug 1990] (v.11#4) pg. 28
Correction SPEAKER BUILDER 5/1990 [Sep 1990] (v.11#5) pg. 3
Added Info SPEAKER BUILDER 6/1990 [Nov 1990] (v.11#6) pg. 91
Added Info SPEAKER BUILDER 4/1991 [Aug 1991] (v.12#4) pg. 86

Vintage designs. Altec 210A cabinet (featuring a horn-shaped cavity).
SPEAKER BUILDER 1/1991 [Feb 1991] (v.12#1) pg. 65

A back-loaded wall-horn speaker. A brief history, plus construction tips and procedures for building this unusual enclosure.
SPEAKER BUILDER 4/1991 [Aug 1991] (v.12#4) pg. 10

Craftsman's corner. Photos and general description of a semi-horn loaded loudspeaker.
SPEAKER BUILDER 5/1991 [Oct 1991] (v.12#5) pg. 56
Added Info SPEAKER BUILDER 1/1992 [Jan 1992] (v.13#1) pg. 65

The electric bass tri-horn. Light weight, small size, high power output speaker for an electric bass player features a triangular cabinet, horn-loaded front- and rearwaves, and a detachable stand.
SPEAKER BUILDER 4/1993 [Jul 1993] (v.14#4) pg. 10
Added Info SPEAKER BUILDER 2/1995 [Mar 1995] (v.16#2) pg. 59

The monolith horn. Designing and constructing a bass horn that will go down to 40Hz. Features a mouth that exhausts out the bottom of the enclosure and a top-mounting driver compartment.
SPEAKER BUILDER 6/1993 [Dec 1993] (v.14#6) pg. 12
Added Info SPEAKER BUILDER 3/1994 [Apr 1994] (v.15#3) pg. 71
Added Info SPEAKER BUILDER 3/1997 [May 1997] (v.18#3) pg. 52

Vintage designs. Dimensions of the folded exponential bass horn enclosure from Ambassador Radio.
SPEAKER BUILDER 2/1994 [Mar 1994] (v.15#2) pg. 61

Round the horn. Results of an exhaustive 5-year study of horn loudspeakers to determine their suitability for studio use.
SPEAKER BUILDER 8/1994 [Dec 1994] (v.15#8) pg. 24
Added Info SPEAKER BUILDER 2/1995 [Mar 1995] (v.16#2) pg. 55
Added Info SPEAKER BUILDER 3/1995 [Apr 1995] (v.16#3) pg. 65

High quality use of Motorola's piezo driver. Using a large piezo element compression driver in horn designs. Part 1.
SPEAKER BUILDER 1/1995 [Jan 1995] (v.16#1) pg. 18

Computer-aided bass horn design.
SPEAKER BUILDER 5/1995 [Jul 1995] (v.16#5) pg. 18

A morning glory midrange horn is constructed by applying concrete over a cardboard form.
SPEAKER BUILDER 6/1995 [Sep 1995] (v.16#6) pg. 18

The Snail horn. The ultimate bass-guitar speaker in a small enclosure (under 6 cu.ft.). It places a horn-loaded woofer in a ported box and feeds the front-wave and port output into the horn.
SPEAKER BUILDER 6/1997 [Sep 1997] (v.18#6) pg. 6
Added Info SPEAKER BUILDER 3/1998 [May 1998] (v.19#3) pg. 53
Added Info SPEAKER BUILDER 3/1998 [May 1998] (v.19#3) pg. 20 (Snail II. Larger enclosure & horn)
Correction SPEAKER BUILDER 6/1998 [Oct 1998] (v.19#6) pg. 58 (Snail II)
Added Info SPEAKER BUILDER 4/1998 [Jul 1998] (v.19#4) pg. 8 (Snail III. Listening room version)
Added Info SPEAKER BUILDER 3/2000 [May 2000] (v.21#3) pg. 49

Tip on improving the sound of Klipsch horns by connecting inexpensive loudspeakers in parallel.
SPEAKER BUILDER 8/1997 [Dec 1997] (v.18#8) pg. 60

MiniSnail. A portable folded-horn PA loudspeaker attuned primarily to the vocal range (100Hz-15kHz). Ideal for small-club musical requirements. Overall enclosure dimensions: 14"x12"x25" tall.
SPEAKER BUILDER 8/1998 [Jan 1999] (v.19#8) pg. 8
Added Info SPEAKER BUILDER 5/2000 [Aug 2000] (v.21#5) pg. 48

The Siamese Snail. The latest in the Snail series of horn loudspeaker designs consists of two identical cabinets sharing a common 15" driver.
SPEAKER BUILDER 2/1999 [Apr 1999] (v.20#2) pg. 26

Dome horn. A simple, inexpensive way to build a short horn that is suitable for use with many 1" or 1-1/8" dome tweeters. The purpose of the horn in this enclosure is to control the directionality of the tweeter to make it similar to that of the companion 6.5" woofer.
SPEAKER BUILDER 3/1999 [May 1999] (v.20#3) pg. 10
Added Info SPEAKER BUILDER 2/2000 [Apr 2000] (v.21#2) pg. 48, 49
Added Info SPEAKER BUILDER 6/2000 [Sep 2000] (v.21#6) pg. 49

Mid ranger. Folded-horn enclosure for a bass playing musician produces good mid- and high-end response. A rugged cabinet fitted with doors and casters that is designed for transit between performances. Overall dimensions: 18"x19"x23" tall.
SPEAKER BUILDER 4/1999 [Jul 1999] (v.20#4) pg. 16
Added Info SPEAKER BUILDER 5/1999 [Aug 1999] (v.20#5) pg. 44

The all-fun horn. Design and construction of a back-loaded single-driver horn. All the steps of the design process are detailed so you can complete a horn loudspeaker design of your own.
SPEAKER BUILDER 5/1999 [Aug 1999] (v.20#5) pg. 10
Added Info SPEAKER BUILDER 8/1999 [Dec 1999] (v.20#8) pg. 52
Added Info SPEAKER BUILDER 2/2000 [Apr 2000] (v.21#2) pg. 51 (Driver option).

Rhinos. Building these two powerful 8-ft. tall horn speakers will help you better understand quarter-wave systems.
SPEAKER BUILDER 5/1999 [Aug 1999] (v.20#5) pg. 26

An exponential midrange horn. Tutorial on determining horn parameters (throat area, rate of flare, etc.). Part 1.
SPEAKER BUILDER 7/1999 [Nov 1999] (v.20#7) pg. 10

Doppelganger Snail. Two identical horns occupying one cabinet. Another project in the Snail series of folded-horn designs.
SPEAKER BUILDER 8/1999 [Dec 1999] (v.20#8) pg. 10

An exponential midrange horn. Part 2. How a change in throat size affects two identical horns.
SPEAKER BUILDER 8/1999 [Dec 1999] (v.20#8) pg. 24

Classic circuitry. Schematic and parts list for the Ionovac Model 14A435 horn loudspeaker.
SPEAKER BUILDER 3/2000 [May 2000] (v.21#3) pg. 50

Building an Altec 816 system. Part 1. Building the woofer cabinets.
SPEAKER BUILDER 8/2000 [Dec 2000] (v.21#8) pg. 30
Added Info AUDIOXPRESS May 2001 (v.32#5) pg. 82
Added Info AUDIOXPRESS Jun 2001 (v.32#6) pg. 79