CELESTION DT25S
CELESTION DT25S — 1"-Hornanschluss · Kompressionstreiber · Neodym
10 W AES - 94 dB - 1700 – 20000 Hz - 8 Ω
Art.-Nr.: 42A-CHS-KD-CEL-0034
Documents
CELESTION DT25S — 1" · Compression driver
1-inch diameter neodymium magnet tweeter
10 W AES · 94 dB Sensitivity · Frequency range 1700 Hz – 20000 Hz
Features
- Very compact, low weight, high sensitivity tweeter
- 2,200Hz recommended min. crossover freq (12dB/oct)
- Single piece silk diaphragm and surround
Technical data
- Throat: 1 "
- Voice coil: 1 "
- Power handling: 10 W
- Programme power: 20W
- Sensitivity: 94 dB
- Impedance: 8 Ω
- Magnet: Neodymium
- Diaphragm: Silk
- Voice coil wire: Copper-clad aluminium
- Mounting depth: 24.5 mm
- Frequency range: 1700 – 20000 Hz
- Rec. crossover (12 dB/oct.): 2,200 Hz
Datasheet (PDF) · Manufacturer page
Part no.: 42A-CHS-KD-CEL-0034
Celestion DT25S: compact 1" neodymium tweeter with silk diaphragm for small cabinets
The Celestion DT25S is a tweeter in compression-driver format with a 1" horn throat, but with a silk diaphragm instead of metal. Diaphragm and surround are formed as a single piece, the motor is a neodymium magnet, and the 1" voice coil is wound with copper-clad aluminium wire. The result is a very small, light component with only 24.5 mm mounting depth that fits into enclosures where a conventional ferrite driver would not.
Within its category the DT25S sits at the low end of the power scale: 10 W AES, 20 W continuous, 94 dB sensitivity, 8 Ω. This is not a driver for high-SPL sound reinforcement; it is a solution for compact two-way boxes, monitors, ceiling speakers and columns where a 1" horn or waveguide should control directivity without the high sensitivity of a PA driver having to be thrown away again in an L-pad. The usable range runs from 1,700 to 20,000 Hz.
Use and enclosure
Celestion specifies a minimum crossover frequency of 2,200 Hz at 12 dB/octave. If you only want a single capacitor as the high-pass (6 dB), cross over considerably higher; a filter with 12 or 18 dB slope allows a crossover closer to the 2,200 Hz mark. At 10 W AES the filter is also the driver's protection – it keeps out low-mid content that would thermally overload the 1" coil. With 94 dB the DT25S sits at the level of many mid-woofers, so in passive crossovers little or no attenuation is usually needed.
For the horn, the 1" models from the Celestion range fit: H1-7050 ‘No Bell’, H1-9040P, H1SC-8050 and H1SC-9040 share the same 1" throat. Choose by desired coverage angle and front plate; for small boxes the most compact horn makes sense, since the driver itself takes almost no depth. For a passive two-way cabinet with an 8" or 10" mid-woofer this is a straightforward, lightweight high-frequency solution.
What to look out for
- 8 Ω and 94 dB: matches typical mid-woofers in passive crossovers without heavy attenuation.
- Only 10 W AES: high-pass of at least 12 dB/octave, crossover no lower than 2,200 Hz.
- 24.5 mm mounting depth, neodymium magnet: light and shallow, fits tight enclosures.
- Silk diaphragm with integrated surround: less metallic breakup, but not a driver for high SPL.
- 1" throat: run only on a 1" horn or waveguide, never free-radiating.
Frequently asked questions
Which cabinets is the DT25S meant for?
Compact two-way boxes, small monitors, column and installation speakers where a horn should control directivity. With 10 W AES and 94 dB it is not intended for loud PA tops; there you need a driver with a larger coil and more power handling.
Which horn fits the DT25S?
Any horn with a 1" throat. From Celestion, 42.audio carries the H1-7050 ‘No Bell’, H1-9040P, H1SC-8050 and H1SC-9040; which one depends on the coverage angle you want and the front plate of your cabinet.
What should the crossover look like?
High-pass at 2,200 Hz or above with 12 dB/octave, steeper if you like. A single capacitor is only enough if you cross over considerably higher, because of the low power handling. The response up to 20,000 Hz needs no equalisation in the treble.
Celestion DT25S: manufacturer, spellings and classification
Celestion is the British loudspeaker manufacturer Celestion International Ltd. of Ipswich, England; its PA drivers are also known as Celestion Pro Audio. The DT25S is a 1-inch compression driver with neodymium magnet from the DT series, available from 42.audio, Celestion dealer in Germany, with datasheet and full specifications in the driver database.
At 42.audio you get the CELESTION DT25S with all key data in the driver database. More drivers from this manufacturer: Atlas Celestion.
Specifications
| Allgemein | |
|---|---|
| Manufacturer | CELESTION |
| Category | Compression Driver |
| Series | DT |
| Magnet | Neodymium |
| Impedance (Ω) | 8 |
| Power handling (W) | 10 |
| Sensitivity (dB) | 94 |
| Frequency from (Hz) | 1700 |
| Frequency to (Hz) | 20000 |
| Abmessungen & Korb | |
|---|---|
| Diameter | 1 |
| Voice coil (inch) | 1 |
| Mounting depth (mm) | 24.5 |