BenQ TH671ST
MSRP$749
| Brand | BenQ · Home Entertainment |
| Type | Home cinema |
| Resolution | 1080p |
| Imaging technology | DLP |
| Light source type | Lamp |
| ANSI lumens | 3,000 lm |
| Throw ratio | 0.69–0.83:1 |
| Input lag (rated) | 1920×1080 @ 60 Hz: 16.7 ms |
A single-chip DLP lamp projector with 1080p resolution and a rated 3,000 ANSI lumens. Its 0.69 to 0.83 throw ratio lets it fill a large screen from a short distance, and it lists 16.7 ms input lag at 1080p60. It has two HDMI 1.4a inputs, VGA and a 5 W mono speaker.
Data sheet
Picture
| Imaging technology | DLP | |
| Technology brand | DLP | |
| Number of imaging devices | 1 | |
| Chip / panel model | DC3 DMD | |
| Chip / panel diagonal | 0.65 in | |
| Native aspect ratio | 16:9 | |
| Native resolution | 1920 × 1080 | |
| Colour wheel segments | 6 segment (RGBYCW) | |
| Colour wheel speed | 2× | |
| Dynamic contrast | 10,000:1 | |
| Rec.709 gamut | 92% | |
| Gamut metric | Coverage | |
| Gamma / EOTF presets | 2.2, 2.4, 2.6 | |
| Bit depth / 'number of colours' | 30 bit | |
| Colour management system | 6-axis | |
| Picture mode memories | 2 | |
| Max refresh rate | 1920×1080: 60 Hz | |
| Input lag (rated) | 1920×1080 @ 60 Hz: 16.7 ms | |
| 3D support | Yes | |
| 3D sync method | DLP-Link | |
| 3D formats | Top-bottom, Frame sequential, Frame packing, Side-by-side | |
| Glasses included | 0 |
Optics
| Throw ratio | 0.69–0.83:1 | |
| Throw reference point | Lens | |
| Projection distance table | 60″: 0.92–1.1 m · 70″: 1.07–1.29 m · 80″: 1.22–1.47 m · 90″: 1.38–1.65 m · 100″: 1.53–1.84 m · 110″: 1.68–2.02 m · 120″: 1.83–2.21 m · 140″: 2.14–2.57 m · 160″: 2.44–2.94 m · 180″: 2.75–3.31 m | |
| Zoom type | Optical | |
| Zoom ratio | 1.2× | |
| Focus | Manual | |
| Fixed offset | 103% | |
| Focal length | 10.2–12.24 mm | |
| F-number | 2.6–2.78 | |
| Image size range | 60–120 in | |
| Vertical keystone | -40–40° |
Light source
| Light source type | Lamp | |
| Lamp wattage | 240 W | |
| Light source life | Normal: 4,000 h · Smarteco: 10,000 h · Lampsave: 15,000 h · Eco: 10,000 h | |
| Warm-up time | 30 s | |
| Cool-down time | 90 s | |
| ANSI lumens | 3,000 lm ANSI | ANSI |
Audio
| Speaker power | 5 W | |
| Speaker count | 1 | |
| Audio channels | Mono | |
| Audio partner | Waves MaxxAudio | |
| Audio outputs | 3.5 mm |
Inputs, control & connectivity
| Max input signal | 1920 × 1200 | |
| HDMI port count | 2 | |
| HDMI ports (feature-level) | HDMI 1: HDMI 1.4a; HDMI 2: HDMI 1.4a, HDCP 1.4 | |
| Audio input terminals | 3.5 mm | |
| Horizontal scan frequency | 15–102 kHz | |
| Vertical scan frequency | 23–120 Hz | |
| VGA input | Yes | |
| USB media playback | No | |
| RS-232 | Yes | |
| Autofocus | None | |
| Auto keystone | No |
Environment & power
| Operating temperature | 0–40°C | |
| Operating humidity | 10–90%RH | |
| Altitude / high-altitude mode | 3,000 m | |
| High-altitude mode | Yes | |
| Operating orientations | Table, Rear, Ceiling | |
| Rated voltage | 100–240 V | |
| Rated frequency | 50–60 Hz | |
| Power consumption (max) | 355 W | |
| Power consumption by mode | Max: 355 W · Normal: 320 W · Eco: 240 W | |
| Standby power | 0.5 W | |
| Fan noise (sound pressure) | Typical: 33 dB(A) · Eco: 29 dB(A) |
Physical & installation
| Width | 296 mm | |
| Depth | 224 mm | |
| Height | 120 mm | |
| Weight | 2.7 kg | |
| Mount hole pattern | Thread: M4 · Screw length mm: 20–25 |
Support & ownership
| Warranty | 🇺🇸 US 3 yr | |
| Light-source warranty | US: pre-installed lamp 2,000 hours or one year from purchase, whichever comes first (replacement lamp 90 days or 500 hours) | |
| User manual | https://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/TH671ST/TH671ST_UM_EN_230426092526.pdf | |
| Safety & market certifications | CE |
In the box
| Box contents | Remote, Power cord, Vga cable, Manual, Quick start guide, Lens cap | |
| Remote type | IR | |
| 3D glasses in box | 0 |
Tools
- Throw calculator — How far from the screen the TH671ST needs to sit for a given image size, set to its 0.69–0.83:1 lens.
- Download spec as CSV — Every value on this data sheet with its unit and source, one row per spec.
- Download spec as JSON — The same data from the open data API, with variants and identifiers.
Variants & identifiers
Use these to confirm a listing is this exact model. Any of them works at /p/{code}.
| Variant | Region | Type | Code |
|---|---|---|---|
| Standard | 🇺🇸 US | ASIN | B076MHKTFH |
| UPC | 840046037574 | ||
| MPN | TH671ST |
Reviews
| Date | Title | Publication |
|---|---|---|
| January 21, 2019 | BenQ TH671ST Projector Review | ProjectorCentral |
| November 6, 2019 | BenQ TH671ST projector review: Superb viewing for gaming and movies | Windows Central |
| May 27, 2019 | BenQ TH671ST Review | Gaming Nexus |
