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White rectangular DLP projector with short-throw lens and front-facing speaker grille

BenQ

BenQ TH671ST 1080p short-throw home theater projector

SKU CH-DYHQ-6ZMKY MPN TH671ST

Projects 1080p images up to 300 inches from 1.5 metres with 3000 lumens and 16.67 ms input lag

  • Screen diagonal30 in to 300 in
  • Image brightness3000 lumens
  • Power draw320 W (Typ.) <0.5 W (Standby)
  • Light source240 W Lamp
  • Screen ratio16:9
  • Panel resolution1920 × 1080
  • Native 1080p Full HD with 3000 lumens and 10000:1 contrast for sharp images
  • 67ms low input lag plus microsecond DMD response for smooth gaming action
  • LumiExpert auto light sensor adjusts brightness to ambient conditions for viewing comfort
  • Short throw 0.69-0.83 ratio projects 100" image from 1.5m distance
  • Built-in 5W stereo speaker with 33/29 dBa acoustic noise for clear audio

throw 1080p projector

The BenQ TH671ST is a DLP home-theatre projector with a 0.69-0.83 throw ratio, casting a 100-inch picture from 1.5 metres. Native 1920 x 1080 resolution, 3000 lumens brightness and a 10000:1 contrast ratio deliver a clear Full HD image. A 240 W lamp and vertical keystone correction of ±40 degrees complete the optical package.

Gaming focus and limits

Ultra-low 16.67 ms input lag and microsecond DMD response suit competitive and fast-paced gaming on a large screen. LumiExpert ambient-light sensing and a 5 W stereo speaker add convenience for living-room play. Buyers who need horizontal lens shift, 4K resolution, or wireless streaming should consider other models.

Throw ratio decides fit

The 0.69-0.83 throw ratio is the single specification that determines whether the projector fits your room; it defines the exact distance required for any given image width.

How it compares

Measured against everything we stock in Home Cinema Projectors, at today’s prices. Recalculated every night.

Price $793.99
Pricier than about 64% of the 234 comparable items (median $272.99).
Screen diagonal 30 in to 300 in
Lower than about 80% of the 65 comparable items (median 40 in).

Specifications

Product
Brand nameBenQ
Model nameTH671ST
Case colorWhite
Product typeDLP
Display
Screen diagonal30 in to 300 in
Image brightness3000 lumens
Light source240 W Lamp
Screen ratio16:9
Panel resolution1920 × 1080
Contrast10000:1
Horizontal scan rate15K - 102 kHz
Vertical frequency23–120 Hz
Keystone adjustment1D, Vertical +/- 40 degrees
Projection ratio0.69-0.83 (100 in@1.5m)
Audio & video
Lens focal lengthf= 10.2–12.24 mm
Integrated speakersYes
Ports & slots
Video input typesAnalog RGB, Digital
Video inputs1 x D-Sub
1 x HDMI (1.4a)
1 x HDMI (1.4a/MHL/HDCP1.4)
Audio input ports3.5 mm Mini Jack
Audio outputs3.5 mm Mini Jack
Video outputsD-Sub
Power
Power draw320 W (Typ.)
<0.5 W (Standby)
Power supply100–240 VAC, 50/60 Hz
Size & build
Product dimensions4.72 in × 11.65 in × 8.82 in
Product weight5.95 lb (2.7 kg)
Shipping weight3.81 kg
Package size417 × 338 × 168 mm
Compatibility
Compatible withHDTV Compatibility: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p
Video Compatibility: NTSC, PAL, SECAM
3D Compatibility:
Frame Sequential: Up to 720p 60hHz
Frame Packing: Up to1080p 24 Hz
Side by Side: Up to 1080i/p 24 Hz
Top Bottom: Up to 1080p 60 Hz
More details
F numberF= 2.6–2.78

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