System Overview
Driver
Technology
Enclosure Design
Connections
Mounting Options
System Overview
Polk Audio Black Stone TL250 Five Speaker System: The Polk Audio Black Stone TL250 is a 5-speaker
surround-sound system. The Polk Audio Black
Stone TL250 five-pack includes four matching Black Stone TL2 satellite speakers and a
Black Stone TL2 horizontal center-channel speaker. The Polk Audio Black Stone TL series speakers (TL2)
feature new innovations specifically designed to enhance compact speaker
performance. The Black Stone TL2 series speakers features a two-way loudspeaker
design and a bass-reflex enclosure. The TL2 series speakers are equipped with 5-way
binding posts and offer various mounting options.
Note: The Black Stone TL250 has an overall system frequency response of 120 to 20,000
Hz and will require a powered subwoofer (107PSW111, sold separately) for full-range
sound. You can also add additional TL2 series speakers (107TL2B or
107TL2W) for 6.1 and 7.1 channel
home theater configurations.
Driver Technology
Dynamic Balance Driver Technology: Polk Audio's patented Dynamic
Balance process allows Polk to design their drivers specifically for flatter
frequency response, revealing the sharpest details and a more lifelike
transparency, with absolutely no strain even at high volume. It's a bold, rich,
warm, and lifelike sound.
Time Lens Technology: The sophisticated laser alignment of the
"acoustic center" of the Blackstone TL2 tweeters with their accompanying drivers
results in far superior imaging. The acoustic centers of the tweeter and
mid-range woofer are aligned, creating a crisp accurate soundstage. The acoustic
centers of the tweeter and mid-bass driver are located in the same plane for
superior imaging, while the acoustic lens incorporated in the grille smoothes
the tweeter's frequency response.
3/4" Silk Dome Tweeter: The Polk Audio Black Stone TL2
series speakers utilize a 3/4"
silk dome tweeter for crisp, clear imaging, and smooth response that's never
tiring.
3-1/4" Composite Injection Molded Woofer: The Polk Audio Black Stone TL2
series speakers employ 3-1/4" composite injected molded cone woofers with Dynamic Balance driver technology (Polk's patented
transducer design process) that produces a flat
frequency response, with sharp detail, transparency, and the ability to play
loud without strain. Each satellite speaker features one 3-1/4" woofer. The
center-channel speaker features two 3-1/4" woofers.
Frequency Response: The system's overall frequency response is
90-24,000Hz, and the -3dB frequency response is 120-20,000Hz.
Enclosure Design
Enclosure Type: The Polk Audio Black Stone TL2
series speakers feature a non-resonant composite enclosure with time-aligned
geometry, and PowerPort technology.
Curved Enclosure Design: The Polk Audio Black Stone TL2
speakers employ non-parallel surfaces that not only lead to a stronger, more
rigid and acoustically inert enclosure, but they also result in less audible
coloration from internal surface resonances.
Steel Reinforced: Extra-rigid steel plates reinforce the curved
enclosures of the TL2 series speakers, resulting in acoustically inert
enclosures free from internal resonances and any audible coloration, for more
lifelike audio detail.
Integrated Acoustic Lens: An innovative acoustic lens incorporated
into the grille produces a high frequency response so smooth that it delivers a
balanced, realistic performance. An acoustic lens is molded into the back of the
speaker grille and helps create imaging frequency balance previously impossible
in small high-performance satellite speakers.
PowerPort: The Polk Audio Black Stone TL2 series speakers utilize
Polk Audio's patented bass venting technology, for added midbass response and
increased efficiency. PowerPort technology decreases port turbulence and
virtually eliminates "port noise," for a massive 3dB boost in bass response.
High-Gloss Finish: The Polk Audio TL2 series speakers feature a
durable, deep automotive-strength high-gloss black finish that matches today's
most stylish flat-panel TVs.
Connections
5-Way Binding Posts: The Polk Audio Black Stone TL2
series speakers are equipped with
one pair of 5-way binding posts to ensure a secure connection to many types of
speaker cables and connectors. The binding post terminals will accept banana
plugs (single or dual), pin-connectors, spade-connectors, and bare wire (18-12 AGW).
Mounting Options
Rubber Feet: The Polk Audio TL2 speakers feature integrated rubber feet
so you can sit the speakers on a stand or shelf securely.
Wall Mountable: The Black Stone TL2 satellite speakers and
center-channel speaker are wall mountable.
- Satellite Speakers: The TL2 satellite speakers feature a single keyhole
slot on the back of the cabinet for wall-mounting the speakers without any
additional wall-mount brackets (mounting screws not supplied). There is also a
1/4"-20 threaded insert on the back of each speaker for mounting the speakers
to the wall using an optional articulating bracket (sold separately).
- Center-Channel Speaker: The TL2 center-channel speaker features
dual single keyhole slots on the back of the cabinet for wall-mounting the
speaker without any additional wall-mount bracket (mounting screws not
supplied). There is also a 1/4"-20 threaded insert on the back of the
center-channel speaker for mounting the speaker to the wall using an
optional articulating bracket (sold separately).
