Content | Designed to deliver superb surround sound, this speaker is perfect for conveying the realism of high resolution audio sources. The strikingly bold design matches the audio performance.
NS-B901 Features
- Soavo Concept: Delivering Natural Sound
- New A-PMD Woofer reproduces high resolution sources with richly detailed sound and abundant power
- Aluminum dome tweeter with DC-Diaphragm™ with neodymium magnet
- Highest quality parts including Solen capacitors in the networks
- Graceful appearance designed by Toshiyuki Kita
Type |
2-Way Bass-Reflex Bookshelf Speaker System |
Woofers |
13 cm (5”) Advanced PMD cone |
Tweeter |
3 cm (1”) aluminium dome |
Frequency Response |
52 Hz-50 kHz |
Nominal Input Power |
30 W |
Maximum Input Power |
120 W |
Sensitivity |
87 dB / 2.83 V/1 m |
Crossover Frequencies |
4 kHz |
Impedance |
6 ohms |
Dimensions (W x H x D) |
220 x 349 x 237 mm ; 8-5/8” x 13-3/4” x 9-3/8” |
Weight |
5.9 kg / unit ; 13 lbs. |
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Woven Kevlar
Crossover Tuning
Nautilus Tapering Tube
Flowport
Technical features Nautilus™ tube loaded aluminium dome tweeter
Kevlar® brand fibre cone bass / midrange
Flowport™
Description 2-way vented-box system
Drive units 1x ø25mm (1 in) aluminium dome high-frequency
1x ø130mm (5 in) woven Kevlar® cone bass / midrange
Frequency range -6dB at 45Hz and 50kHz
Frequency response 55Hz - 22kHz ±3dB on reference axis
Dispersion Within 2dB of reference response
Horizontal: over 60º arc
Vertical: over 10º arc
Sensitivity 84dB spl (2.83V, 1m)
Harmonic distortion 2nd and 3rd harmonics (90dB, 1m)
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High Performance, Compact Size, Surprising Price
Don't settle for flat sound from your flat panel TV, and don't miss out on the excitement of digital surround-sound in your shows, movies and games. Great surround-sound doesn't have to take up a lot of space or cost all that much. The payback is family fun and entertainment excitement. Don't miss out.
TL1 Features:
- The silk dome tweeter delivers a classic, clear, detailed Polk performance, with pinpoint imaging and smooth highs that are never tiring.
- Time Lens® technology aligns the acoustic centers of the tweeter and mid-bass driver on the same spatial plane for superior imaging, while an acoustic lens incorporated in the grille smoothes the tweeter's frequency response.
- The unique curved enclosure design employs non-parallel surfaces to strengthen the acoustically inert enclosure and deliver less audible coloration from internal surface resonances.
- Because of its Extended Linear Motion motor structure, the moving parts of the drivers used in the Blackstone TL Series can move farther, more smoothly, in a smaller space than any other speaker driver in an enclosure this size, achieving the kind of dynamic response (clarity, volume) you'd expect from much larger speakers.
- An aperiodic-tuned rear-firing bass port combines the extension of a ported enclosure with the smoother low-end of an acoustic suspension enclosure, controlling port air flow for the kind of big bass response, and perfect speaker-subwoofer blending, you'd never expect from a loudspeaker you can hold in the palm of your hand.
- The Blackstone aerated polypropylene cone is lightweight, but stiff and strong, with longer linear excursion capabilities in a limited compact enclosure space, so it plays louder with less distortion.
- A super-small long-throw mid-bass driver, tuned with our patented Dynamic Balance® technology, delivers astonishingly smooth, flat frequency response, superior transparency and detail, and the surprising ability to play really, really loud for such a small speaker.
- Polk's proprietary, patented Dynamic Balance technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.
- Hi-Gloss "Blackstone" finish, a durable, deep automotive-strength finish that matches today's most stylish flat-panel TVs and furniture.
- Compact means go-anywhere for Blackstone TL: on shelves, on the wall, on stands. Built-in keyhole slots and threaded inserts (that fit virtually any brackets) give you multiple mounting options.
- Gold-plated, professional-style 5-way binding posts, for the most secure connection options.
- All models in the Blackstone TL Series are available in convenient, professionally matched 5-packs for instant home theater solutions in any room. There are two complete systems available that include a subwoofer; everything you need for an explosive, compact, easy-to-connect home theater system. Plus, you can use individually-available satellites to expand your systems to accommodate 6.1, 7.1 and beyond.
Driver Complements
Mid/Woofer 1 - 2 1/2" Diameter (6.35cm)
Dynamic Balance composite cone driver
Tweeter 1 - 1/2" Diameter (1.27cm)
Silk polymer dome
Electrical
Overall Frequency Response 120Hz-22kHz
Lower -3dB Limit 135HZ dB
Upper -3dB Limit 20kHz dB
Nominal Impedance 8 ohms
Recommended Amplifier Power 10-100 w/channel
Efficiency 89 dB
Inputs 5-way binding posts
Dimensions
Cabinet Size 6 1/2" H x 3 3/4" W x 4 7/8" D
(16.51cm H x 9.53cm W x 12.38cm D)
Mounting Options keyhole slot; .25 x 20 threaded insert
Enclosure Type Non-resonant composite w/time-aligned geometry and aperiodic tuned port
Shipping/Other
Product Weight 1.85 lbs. (0.84kgs)
Shipping unit: each
Total Shipping Weight 2.40 lbs. (1.09kgs)
Speaker Warranty 5 years parts and labor (original purchaser)
| Frequency Response +/- 3dB: 60 Hz - 35 KHz
Sensitivity (1W@1M): 87 dB
Driver Compliment: 1 x 140mm (5 1/2“) RST® mid-bass driver
1 x 25mm (1“) C-CAM® gold dome tweeter
Nominal Impedance: 8 ohms
Maximum SPL (each): 110.8 dBA
Recommended Amplifier Requirements (RMS): 25 - 100W
Bass Alignment: Front ported - bass reflex. HiVE®II port system
Power Handling (RMS): 100W
Crossover Frequency: 3.0kHz
External Dimensions:
(H x W x D) 250 x 140 x 140 mm
9 13/16 x 5 1/2 x 5 1/2 inch
Weight (Individual): 3.95 kg (8 3/4 lbs)
User's Manual
ΔΙΑΤΙΘΕΤΑΙ ΣΤΑ ΠΑΡΑΚΑΤΩ ΧΡΩΜΑΤΑ
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- Time Lens Technology-The acoustic centers of the tweeter and mid-bass driver are located in the same plane for superior imaging
- PowerPort® a patented Polk technology, extends the low frequency mid-bass driver response as it decreases air turbulence, and eliminates "port noise" and bass output losses up to 3 dB.
- 3/4" Silk Dome Tweeters for crisp, clear imaging and smooth response that's never tiring.
- 3 1/4" Composite Injection Molded Cones With Dynamic Balance Driver Technology
- Combination Keyhole Slot & 1/4" x 20 Threaded Insert fits all aftermarket ceiling and wall brackets for ultimate flexibility
- Time Lens Technology-The acoustic centers of the tweeter and mid-bass driver are located in the same plane for superior imaging
- PowerPort a patented Polk technology, extends the low frequency mid-bass driver response as it decreases air turbulence, eliminates "port noise" and bass output losses up to 3 dB.
- 3/4" Silk Dome Tweeters for crisp, clear imaging and smooth response that's never tiring.
- 3 1/4" Composite Injection Molded Cones With Dynamic Balance Driver Technology
- Combination Keyhole Slot & 1/4" x 20 Threaded Insert fits all aftermarket ceiling and wall brackets for ultimate flexibility.
Driver Complements
Mid/Woofer 1 - 3 1/4" Diameter (8.26cm)
Dynamic Balance composite cone driver
Tweeter 1 - 3/4" Diameter (1.91cm)
silk dome
Electrical
Overall Frequency Response 95Hz-24kHz
Lower -3dB Limit 125 Hz dB
Upper -3dB Limit 20kHz dB
Nominal Impedance 8 ohms
Recommended Amplifier Power 10-125 w/channel
Efficiency 89 dB
Inputs Gold-plated 5-way binding posts
Dimensions
Cabinet Size 7 1/8" H x 4 1/8" W x 5 3/16" D
(18.10cm H x 10.48cm W x 13.18cm D)
Mounting Options keyhole slot; .25 x 20 threaded insert
Enclosure Type Steel-plate reinforced curved enclosure with time-aligned driver geometry and PowerPort bass venting
Shipping/Other
Product Weight 3.00 lbs. (1.36kgs)
Shipping unit: each
Total Shipping Weight 3.70 lbs. (1.68kgs)
Speaker Warranty 5 years parts and labor (original purchaser)
ΔΙΑΤΙΘΕΤΑΙ ΚΑΙ ΣΕ ΑΣΠΡΟ ΧΡΩΜΑ
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System Format: 2 Way
Frequency Response: 42 Hz - 60 kHz
Sensitivity (1W@1M): 88 dB
Nominal Impedance: 8 ohms
Maximum S.P.L
(Per pair in room): 112.6 dBA
Power Handling (RMS): 120 W
Recommended Amplifier Requirements (RMS): 60 - 120 W
Bass Alignment: Bass reflex. HiVe port system
Crossover Frequency: 2.7 kHz
Drive Unit Compliment: 1 x 6.5" RST bass/mid-range driver
1 x C-CAM H.F ribbon transducer
External Dimensions excl Stand (H x W x D)
362 x 210 x 303 mm
(14 3/8 x 8 1/4 x 11 15/16 inch)
Weight (each) Excluding stands: 9.9 Kg (21.75 lbs)
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