JBL STAGE 250B Plaukta akustiskā sistēma (cena par gab.)
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Designed and engineered in JBL’s world-famous Acoustic Engineering Centre of Excellence in Northridge, California, Stage 250B is the largest bookshelf loudspeaker of the new JBL Stage Series. This loudspeaker features a 2-way design with Next Generation patented HDI waveguide geometry, 1-inch (25mm) Anodized Aluminium dome tweeter, and a 5.25-inch (130mm) Polycellulose cone woofer that provides deep, signature JBL bass.
5.25” Polycellulose bass/mid driver
The bass/mid driver in the JBL Stage 250B speakers is made of ribbed Polycellulose. This has improved distortion and damping Characteristics over paper cones. Traditionally speaker cones were made of paper pulp also known as cellulose. However, newer plastic materials are also now used. Particularly polypropylene.
This does not absorb moisture over time. Polycellulose is a combination of both materials and has the best properties of both. The ribbing also makes the cone more rigid.
1” aluminium tweeter
The 1” anodized aluminium tweeter sits in a waveguide. The waveguide is used to disperse high frequencies in the listening area. The theory is that a stiffer cone produces better ultra-high frequencies. Notably, JBL are experts at “voicing” a speaker.
A quality cabinet
The JBL Stage 250B speaker cabinets are made of audio-grade MDF. This rigid material has good audio characteristics such as resisting resonances. Moreover, good internal bracing provides solid mounting for the drivers. Additionally, as with most bookshelf speakers, there is a bass port that boosts the bass down to 50Hz.
Type: | Bookshelf Loudspeaker System |
Low Frequency Driver: | 5.25-inch (130mm) Polycellulose Ribbed Cone |
High Frequency Driver: | 1-inch (25mm) Anodised Aluminium |
Waveguide: | Next Generation HDI™ |
Recommended Amplifier Power: | 20-150W |
Frequency Response ± 6dB: | 50Hz-25kHz |
Sensitivity @ 1M, 2.83V: | 86dB |
Nominal Impedance: | 6 Ohms |
Crossover Frequencies: | 1.7Khz |
Enclosure Tuning: | Bass Reflex via Rear-Firing Flared Tuned Port |
Finish: | Espresso (Black) or Latte (White) |
Dimensions (HxWxD): | 321mm x 200mm x 241mm |
Product Weight: | 5.6kg |
Shipping Weight: | 13.6kg |