Toshiba Regza 46SV670U

Black Level (7.43)

The deepest black levels produced by the Toshiba 46SV670U were on par with similarly sized and priced models. Overall, we were pleased with what we saw. In this group of comparison models, only the Vizio SV471XVT fared poorly.

Black Level
Compare the Toshiba 46SV670U to other HDTVs
Samsung UN46B6000 46 inches	Vizio SV471VXT 47 inches	Sony KDL-46VE5 46 inches

Peak Brightness (7.97)

The Toshiba 46SV670U was capable of producing adequate white levels, though it was the lowest of among the group of competitors. 

Peak Brightness

Contrast (7.3)

Contrast ratio is, in a way, more important than Peak Brightness and maximum black level because the human eye is more sensitive to contrast. Our testing showed that the Toshiba 46SV670U was capable of a 2086:1 contrast ratio. Of course, this is far lower than the little specs tags you'll see hanging at Best Buy, but those numbers tend to be grossly inflated. The best performer in this comparison group, the Samsung UN46B6000, had a tested contrast ratio of 3492:1. By comparison, the Toshiba 46SV670U did pretty well. 

Contrast

Tunnel Contrast (9.43)

Tunnel contrast examines whether a TV can maintain consistent black levels no matter how much white area is elsewhere on the screen. TheToshiba 46SV670U performed well in this test. 

Tunnel Contrast

White Falloff (9.97)

The white falloff test looks at how well a TV can maintain bright white areas of the screen when most of the picture is blacks. The Toshiba 46SV670U scored very well in this test, better than all the competition. 

White Falloff

Uniformity (5.5)

The uniformity of the Toshiba 46SV670U is pretty good. It didn't have the major flashlighting problems of some of the competing TVs, but couldn't come close to the Vizio SV471XVT. When we looked at an all-white screen, the Toshiba produced some minor blotchiness. At an all-black screen, some corners were unusually bright, while others were fine. 

Greyscale Gamma (9.7)

The greyscale gamma produced by the Toshiba 46SV670U was very good. An ideal gamma curve is between 2 and 2.0. The Toshiba produced a gamma curve of 2.25. Practically speaking, this means that images with lots gradations between dark and light will be produced smoothly. 

Greyscale Gamma

Resolution Scaling (8.08)

The Toshiba 46SV670U has a resolution of 1920 x 1080 and supports 1080P content. But we live in a world where a lot of the content being delivered to the TV is not 1080P. Fortunately, the Toshiba had no problem handling the situation. 

480p
When looking at 480p looked fine in most instances. You may find some strange moire patterns appearing when looking at content with high frequency patterns (i.e. your local newscaster's tie fabric).

720p
Content that has a 720p resolution looked better than 480p, but wasn't perfect.

1080i
The 1080i content was very good, and hard to distinguish from 1080p content.

Other Models in the SV670U Series
This is a review of the Toshiba 46SV670U. The other sizes of HDTVs in this series should be similar in terms of performance and usability. For details about any differences, click on the image to jump to the Series Comparison page.
Toshiba 46SV670U 46 inches	Toshiba 55SV670U 55 inches