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ETF 2010 Shootout


ETF 2010 shootout

"horn + driver > 600Hz"

 

The ETF2010 shootout was a contest of horn+driver couples. Scroll down to see the results and pictures.

 


THE RULES

We will compare horn + compression driver couples, above 600Hz. The bass enclosure ( "petite onken" bass reflex with altec lansing 414 ) will be provided, and will be the same for all horn/driver couples.

horns/drivers will be put on a horizontal 1 meter x 1 meter wood board. If needed, a base shall be provided by the participant.

An active crossover will apply the appropriate delay, level and phase for each horn/driver, but frequency, slope and type of filter be the same for all.

The bass and medium amplifier will be the same for all.

The driver impedance shall be about 8 ohm over 600Hz to 10KHz.

A minimum average sensibility of 100dB/1m/2.83V over 600Hz to 10KHz is required.

The shootout listening tests will be MONOPHONIC : there is no need to bring a pair of identical driver+horn, one is enough.

The interface is 2 female 4mm banana plug: Red and black. A positive voltage on the red terminal should move the voice coil toward the horn.

The horn/driver must be made available for the measurement on thursday evening.

 

How to register to the shootout ?

First of all, you have to register to the triode festival: http://www.melaudia.net/subscribeETF.php
In your registration form, fill the "participate to the shootout with" field with the name of your horn/driver (brand and reference, or any description if it is a DIY horn and/or driver)
Bring one horn+driver at ETF

The number of participant is limited to 16, you will receive a confirmation of your participation before ETF2010.


Participants are asked to :

1) register
2) provide a base to support the horn/driver (if needed)
3) bring their horn+driver for the measurement on thursday evening.
4) provide the interface (2 female 4mm banana plug)

 

Before the shootout, the following tests will be performed :
phase/out-of-phase check.
delay measurement
average sensibility above 600Hz

 

Special stuff :


A coaxial compression driver is considered as a "normal" compression driver and is allowed. In this case, please provide the passive crossover: the interface is still 2 female 4mm banana plug.

field coil drivers are welcome, but please provide the power supply.

passive correction are allowed, providing that the impedance and minimum sensibility requirements are met.

 

THE SETUP

from left to right : Philips CD723 (spdif output), Neutrik spdif->AES/EBU transformer, Behringer DCX2496 (heavily modified), a pair of Bryston 120 amps, switch boxes.

 

"Petite Onken" enclosure, with Altec Lansing 414. On top, "Le dauphin" horn, with a modified TAD2001 (without rear cover).

 

THE RESULTS

And the winner is... Klangfilm field coil !

Second is another Klangfilm (AlNiCo) !

Full result list :

1/8 final :

Mélodium 8 cells horn + diy throat + Altec Lansing 802-8D vs Altec Lansing Mantary horn + Altec Lansing 909 (Mélodium wins)

Le dauphin horn + modified TAD2001 vsblack horn + ACR driver (Le dauphin-TAD wins)

Smith horn + JBL 2441 vs Avant garde horn + TAD 4001 ( Avant garde wins)

Gaumont Kalee horn+driver vs Klangfilm horn and acoustic lens + field coil Klangfilm driver (Klangfilm wins)

Le Cleac'h horn + TAD 2001 vs wood conical horn + RCA driver ( Le Cleac'h wins)

Electrovoice horn + Altec 288-16G driver vs JBL horn + Altec Lansing 288-8K (EV wins)

Stereolab horn + vitavox S2 driver vs stereolab horn + yamaha JA6681B driver (yamaha wins)

Lansing 808 horn + JBL D175 (DIY diaphragm) vs Klangfilm horn+driver (AlNiCo) (Klangfilm wins)

 

1/4 final :

Mélodium 8 cells horn + diy throat + Altec Lansing 802-8D vs Le dauphin horn + modified TAD2001  (Le dauphin-TAD wins)

Avant garde horn + TAD 4001 vs Klangfilm horn and acoustic lens + field coil Klangfilm driver (Klangfilm wins)

Le Cleac'h horn + TAD 2001 vs Electrovoice horn + Altec 288-16G driver  (EV wins)

stereolab horn + yamaha JA6681B driver vs Klangfilm horn+driver (AlNiCo) (Klangfilm wins)

 

1/2 final :

Le dauphin horn + modified TAD2001 vs Klangfilm horn and acoustic lens + field coil Klangfilm driver (Klangfilm wins)

Electrovoice horn + Altec 288-16G driver vs Klangfilm horn+driver (AlNiCo) (Klangfilm wins)

 

final :

Klangfilm horn and acoustic lens + field coil Klangfilm driver vs Klangfilm horn+driver (AlNiCo) (Klangfilm field coil & lens wins)

 

small final :

Le dauphin horn + modified TAD2001 vs Electrovoice horn + Altec 288-16G driver (Le dauphin-TAD wins)

 

 

THE PICTURES

Horn No.1 : Mélodium horn + DIY throat + Altec Lansing 802-8D

 

Horn No.2 : Altec Mantary + 909-8A

 

Horn No.3 : "Le dauphin" horn + modified TAD 2001

 

Horn No.6 : avant-garde horn + TAD 4001

 

Horn No.7 : Gaumont Kalee horn and driver

Horn No.7 : Gaumont Kalee horn and driver

Horn No.7 : Gaumont Kalee horn and driver

 

Horn No.8 : Klangfilm horn with acoustic lens + Klangfilm driver + vintage field coil power supply

Horn No.8 : Klangfilm horn with acoustic lens + Klangfilm driver + vintage field coil power supply

 

Horn No.9 : Le Cleac'h horn + TAD 2001 and serial resistances

 

Horn No.10 : bill Wood conical horn

Horn No.10 : RCA "speaker mechanism" MI 1428-B

 

Horn No.11 : ElectroVoice HR6040A horn + Altec 290E with 288D alu dome, resulting in a 288-16G

 

Horn No.12 : JBL 2353 + Altec 288-8K (+ RC network)

 

Horn No.15 : Lansing 808 + early D175 with DIY diaphragm

 

Horn No.16 : Klangfilm horn and Klangfilm AlNiCo driver

 

THE MEASUREMENTS

Here are the measurements performed by Jean-Michel : Horns_measurements_ETF2010d.pdf

 


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