宏基H6510BD全高清投影机测评
For the original German review, see here.
The Acer H6510BD is a DLP projector with a RGBCYW color wheel. Each of the 1920x1080 pixels is created by an electrical mirror, which reflects the light of the projector lamp at the right time to show the correct color (see Wikipedia). One drawback of this complex technology is the so called rainbow effect. We could not determine any problems with our review unit but this also depends on the person and its perception (see Notebookjournal, where 50 % of the users could see this effect, the Chip review also mentions flashes).
Besides its compact dimensions the Acer H6510BD impresses with an excellent brightness according to the spec sheet (3000 / 2400 ANSI lumens in standard or ECO mode, respectively) and a low price of 750 Euros (street price as of June 21st 2013). We also want to mention the 3D capabilities of the projector and the integrated 2 Watts speaker, although it should only be used as a backup.
The significantly bigger H9500BD or H9501BD has a larger zoom area and an optical lens shift. However, both devices cannot keep up in regard to the maximum brightness.
Specifications (Manufacturer's information)
- DLP chip 0.65" with a resolution of 1920 x 1080 pixels, 16:9
- 3000 / 2400 ANSI lumens (Standard / ECO) brightness
- 1.15 - 7.62 m screen diagonal, 1.5 - 7.6 m projection distance
- 4000 / 7000 (Standard / ECO) service life hours of the lamp
- Ports: 2x 15-Pin D-Sub (1x In/1x Out), 2x HDMI, 1x Composite Video (RCA), 1x S-Video, 1x Component (3x RCA), 2x Audio jack (1x In/1x Out), 1x USB, 1x RS-232
- 264 mm width, 78 mm height, 220 mm depth, 2.2 kg
- 24 months warranty from the manufacturer, 12 months for the lamp
Thanks to its compact dimensions, the simple design and simple stylistic elements the Acer H6510BD looks good in the office as well as in the home cinema and does not draw too much attention.
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The build quality gives no reason for criticism and is on the expected level for an inexpensive projector of this performance class. All the ports are located at the back and the control elements are at the top. Two of the three support feet at the bottom can be adjusted and there is also a thread similar to digital cameras. The supplied remote control is compact but does not have illuminated keys.
Picture Quality
The most important aspect of a projector is obviously the picture quality. Subjectively the Acer H6510BD can clearly convince us in this regard. With a perfect installation the picture impresses with fine details and good colors. You can see many details in the background, especially with Blu-Rays like Game of Thrones. A real benefit of the Full HD resolution compared to cheaper 720p projectors.
The response time was sufficient for Fifa 13 on the PC in our test but we determined a certain lag with Little Big Planet and Killzone 3 on the PS 3.
Typically for a projector: The black value is subjectively slightly brighter compared to high-end TV's. We also noticed that the lowest grayscales (3.5 % and less in the EIZO display test) cannot be distinguished from black, contrary to the brightest grayscales.
We measured and calibrated the projector attached to the Acer Aspire M3-581TG with our X-Rite i1Pro 2 and Calman or X-Rite software, respectively. We determined a contrast of 550:1 (on a white-painted concrete wall) and a gamma value of 2.5 for the grayscales with the standard settings. However, the values are slightly green but the white point is good with 6700 K.
The individual color measurements showed an interesting shift of green and cyan, which could be caused by the RGBCYW color wheel. The color deviations are still in an acceptable range with an average DeltaE 2000 value of 6, only a few measurements surpass the critical value of 10. The result was not noticeably better after the automatic calibration with the i1Profiler.
3D Operation
Due to the high brightness, 3D operation with optional shutter glasses is no problem for the Acer projector, however it only supports a maximum refresh rate of 120 Hz. The 3D mode was quite convincing in our test and we could not determine any ghost images. It took some time to set our PS 3 up for the 3D operation, sometimes you have to manually select the 3D mode (for example YouTube Side By Side 3D Video on the notebook).
As usual the 3D mode has a different effect from person to person, one reviewer, for instance, got sick after playing with the PS 3 for one hour...
System Noise
Unfortunately the compact dimensions and the high maximum brightness also result in a higher system noise. Two different aspects are important for the fan speed. First, whether the ECO mode is active, which has influence on the brightness of the lamp. It is usual for most projectors that the fan speed is connected with this setting. However we were surprised that inverting the picture also resulted in a higher fan noise (but not a higher energy consumption). You have to use this option if you are installing the projector at the ceiling, for instance, so you will have to tolerate the noise.
The measurements were determined in a 17 °C cool basement with an installation height of 80 cm and a distance of 2 meters. We used a combination of Behringer ECM-8000 microphone, Terratec DMX6Fire USB sound card and Arta 1.6.1; we measured 27 dB when the device is turned off and relatively quiet 31.8 dB (1.65 sone) in the ECO mode. As soon as we invert the picture the fan speed is noticeably increased to 34.3 dB (2.1 sone). If you want to use the maximum brightness you have to choose the standard mode, in this case the H6510BD is audible with 36.3 dB (2.45 sone). Once again the system noise is raised to pretty loud 37.8 dB (2.8 sone) if we invert the picture. The noise itself (see Arta diagram or YouTube video) is not annoying for the reviewers.
Subjectively the Acer H6510BD is clearly audible and also present in quieter movie passages. It was not annoying for the reviewers with an inverted picture even without the ECO mode - but audible nevertheless.
Energy Consumption
Energy consumption is obviously no strength of classic DLP projectors. Especially the bright lamp of the Acer H6510BD Full HD projector is not a good sign. Our Voltcraft VC 940 Multimeter supports that and we can see two different consumption stages: Around 190 Watts in the ECO mode and 246 Watts in the standard mode; as we mentioned earlier the inverted image has no influence on the energy consumption. During standby our measurement device (which is slightly inaccurate in this area) showed excellent 0.1 Watts. This can be very important if you install the projector under the ceiling because you won't always turn it completely off.
Temperature
The surface temperatures were okay during our tests. Our infrared thermometer only determined 37 °C after three hours, although the ambient temperature was quite low with just 17 °C. This might have also lead to the clearly visible heat haze. The fan directs the warm air to the front, which can result in this phenomenon with high temperature differences. This effect was reduced when we turned the device around.
Verdict
The Acer H6510BD is an inexpensive Full HD DLP projector. The picture quality is convincing with good source material like Blu-Rays; you can see fine details and the color accuracy is good.
Due to the missing lens shift and a minimal blur an ideal installation is very important. The raised fan speed with the inverted presentation and the heat haze in cooler areas also have to be considered. The system noise itself is audible and could be annoying for movie enthusiasts.
The compact dimensions and the low weight predestine the projector for a mobile office operation.
Overall the Acer H6510BD left a good impression and can really convince considering its low street price of 750 Euros.
External Reviews
Chip review with detailed measurements: http://www.chip.de/artikel/Acer-H6510BD-Full-HD-und-3D-Beamer-Test_61382233.html
Comparison Benq W1080 and Acer H6510BD with statement on the rainbow effect but limited measurements: http://www.notebookjournal.de/tests/acer-h6510bd---benq-w1070-2009
English review (hardly any measurements): http://www.expertreviews.co.uk/projectors/1299277/acer-h6510bd
Englisch review that praises the quiet fan: www.projectorcentral.com/acer_h6510bd_3d_home_video_projector_review.htm