Joseph Crowe

Horn No. 1845 — Biradial for RAAL Lazy Boy 210-10 Flat Foil

Name: Horn No. 1845 — Biradial for RAAL Lazy Boy 210-10 Flat Foil
Brand: Joseph Crowe
Price: 300.0 USD
Availability: InStock

Product variants

$300.00 USD

Sale Sold out

Quantity

Quote REV01 November 19, 2022

Design fee to change 1845 design to baffle mount
Work with customer to establish exact width and mounting method
Update design, drawings, CNC setup and program
Design Fee $400 CAD (REV00 cost was $2,232.00)

Quote REV00 Below...

The 1845 horn is a special horn designed to work with pure ribbon tweeters. The 1845 Horn is built to order and can be customized for other ribbon type tweeters including planar. We can also supply the drivers and do crossover design for an extra charge.

Technical Drawing click HERE.

The original blog post featuring the first project can be found HERE.

Includes

Funds in CAD Currency
Price is for one pair of horns
Solid Walnut Hardwood (Pictures are shown in mahogany)
Plastic throat adapter to ensure smooth horn flare transition
1.2kHz Fc
Precision CNC machined and stained
Lead time 3 months
Terms 60/40
Total cost $3,720.00 CAD per pair
$2,232.00 order deposit + $1,488.00 prior to shipping
Mounting features on rear of horn for bracket (not included)
Detail drawing for mounting bracket (PDF format)
Shipping costs extra
Pictures shown for reference from previous project

Acoustical Measurements

The below measurement is a comparison between the 1155 Horn (Green) and the driver mounted to a regular speaker baffle (Red).

Off-Axis Performance

The 1155 horn drastically improves the off-axis performance providing much wider coverage in the upper treble and also controlling the coverage in the midrange so that it matches the power response into the room. This drastically improves the natural sound of instruments giving them better musical timbrel accuracy. Edge diffraction is completely eliminated with the 1155 horn which improves transient detail.