Timpano TPT-DH175

Manufacturers Info:

Brand: Timpano

Model: TPT-DH175

Style: Driver & Slim Horn

Coverage (H x V): 60 x 60

Minimum Frequency: 1,300Hz

Throat: 1"

Mounting Type: 1-3/8"-18 TPI

Dimensions: 4.5" W x 4.5" H x 4.17" D

Additional Notes:

Inexpensive Compression Driver and Horn Combo by Timpano Audio (owned by PRV audio).

The Timpano TPT-DH175 SLIM uses a 1″ phenolic dome compression driver on a shallow 1-3/8"-18 TPI horn which is said to provide a constant 60 x 60 dispersion pattern.

Since this horn is only sold with the included compression driver I only tested the pair, no other drivers tested with this horn.


Test Notes: Off axis and polars measured using the included compression driver. Off axis measurements are smoothed to 1/24 Octave. Since this horn is symmetrical I only measured one axis.

Polar Sonogram needed to be truncated at 15kHz otherwise the off axis peak around ~17-22k would skew the 0dB point and contour lines.


Nominal dispersion appears closer to 70-75 degrees, some waist-banding just below 5k then some narrowing before a strong off axis hot spot in the top octave.

On axis frequency response & distortion.

On axis - measured at 1m (scaled to 2.83v), no smoothing, 4ms gate: