Hi-fi speakers made by Eric Cros

SHOWCASES FOR
EXCEPTIONAL WIDE BAND

Eric Cros is a cabinetmaker whose passion for music drove him to start making folded rear horn hi-fi speakers.

With his skilled woodworking ability, he builds seamless cabinets needed for horn loading, also with an incomparable finish.

Excitation

The speakers used are Electro-Magnet Speakers (EMS). Created originally by Michel Fertin, well-known for his wide band high-efficiency speakers driven by a moving coil and by 46 cm boomers used in the professional world. EMS has been taken over by his daughter Catherine Fertin, still offering the choice between a magnet and a shunt motor, which can be driven simply by a very small external power supply. This offers the advantage of much less inertia, and adjustable voltage for the speaker’s parameters in the enclosure, thereby fine-tuning the resonance frequency once mounted in the cabinet.

Wide band

The wide band speaker has been selected for its accurate, vivid sound reproduction full of emotion. Its resonance frequency is under 40 Hz with a response of at least 18 kHz in the treble for 94 dB/w/m efficiency that can function with several types of speakers, subwoofers and tweeters. One advantage is that this wide band does not need filter control, avoiding phase rotation problems and offering an identical sound environment to that of natural listening, whatever the desired venue: a church, an amphitheatre or a concert hall.

Aesthetics

Eric Cros uses several species of wood to build his speaker cabinets: birch plywood from Finland, solid birch and other species that thanks to their distinctive features ensure rapid frequency diffusion. Frequencies must travel quickly for horns measuring between 3.30 and 4 metres from the speaker to the enclosure’s air outlet, to avoid an acoustic phase difference.

Product range

Three rear horn enclosures are available with EMS speakers: the 21cm LB8, the 17cm LB7 and the 31cm LB12, each available with a moving coil, the last word in motorization at EMS, or with ferrite, still excellent while being more affordable. The very compact LINEA model offers the advantages of EMS in a small volume. The Jensen ONKEN enclosure’s reputation is firmly established, with its matchless bass advantages.

BIJOU LB8

Fruit of a search to find an appropriate wavelength for the LB8 with a 4 metre long rear horn.
Folded horn speaker.

Dimensions:
1350 mm high
330 mm wide
610 mm deep
Unit weight: 115 Kg
Speaker:
LB8 EX or LB8 ferrite
Price (per pair):
Untreated: €6,500 incl. tax
With varnish finish: €8,600 incl. tax
with LB8 ferrite: €9,500 incl. tax
with LB8 EX: €10,600 incl. tax

BIJOU LB7

The same principle but with the 17 cm EMS. Horn 3.30 metres long.
Folded horn speaker.

Dimensions:
1200 mm high
270 mm wide
450 mm deep
Unit weight: 60 Kg
Speaker:
LB7 EX or LB7 ferrite
Price (per pair):
Untreated: €4,600 incl. tax
With varnish finish: €6,100 incl. tax
with LB7 ferrite: €6,900 incl. tax
with LB7 EX €8,000 incl. tax

BIJOU LB12

Fruit of a search to find an appropriate wavelength for the LB12 with a 3.30 metres long rear horn.
Folded horn speaker.

Dimensions:
1280 mm high
465 mm wide
545 mm deep
Unit weight: 109 Kg
Speaker:
LB12 EX or LB12 ferrite
Price (per pair):
Untreated: €5,900 incl. tax
With varnish finish: €7,500 incl. tax
with LB12 ferrite: €8,500 incl. tax
with LB12 EX €9,700 incl. tax

JENSEN ONKEN
360 litres

Speaker made with noble wood such as birch from Finland with inner stiffeners.

Dimensions:
950 mm high
800 mm wide
550 mm deep
Speaker:
B15 EX or B15 ferrite
Price (unit):
Untreated: €1,260 incl. tax
With varnish finish: €2,200 incl. tax
B15 ferrite: €4,950 incl. tax
fitted with an ATOHM S500 amplifier

LINEA LB7

Narrow and shallow enclosure with a rear top vent allowing it to be placed in a corner to amplify the wavelength.
Acoustic line speaker.

Dimensions:
1070 mm high
210 mm wide
280 mm deep
Unit weight:
LB7 EX or LB7 ferrite
Price (per pair):
Untreated: €1,050 incl. tax
With varnish finish: €1,400 incl. tax
LB7 ferrite: €2,100 incl. tax
LB7 EX: €3,300 incl. tax

The enclosures can be sold
without speakers

Woodwork to order