sur AVS, Lygren a écrit:My initial impressions after A/B testing RS600 / Z1 on a 14-feet wide DreamScreen UltraWeave V6 AT (0.8 gain@D65) screen;
- Light output is pretty decent. Certainly higher than the RS600, although not 1000 lumens higher as you´d need to dial down the iris to -8 to maintain dynamics on the Z1, but I´d say 2-500 lumens more, both projectors tuned onto an acceptable output / dynamic compromise (needs to be measured)...
- Colours and overall stability / processing stellar... Outputting SDR / 4K / REC709 / 10-bit video from a Panasonic UB900 player. Have not tested HDR / P3, but since screen is 14 feet wide I´d say those features would probably not be very usable... My guesstimate would be that 10 feet width is the maximum for P3, and if you´d want to use today´s "TV HDR" as well; 5 feet max??
- Very good at upscaling regular Blu-ray-content as well, as stated above, processing seems very very good...
- Sharpness and overall detailing is simply amazing!!
- Laser dimming mode 2 seems more visible than mode 1. Need to test this more, but the dimming certainly does wonders in terms of dynamics.
In summary I´d say sharpness and more subtle detailing are the two main characteristics differentiating this projector from the current RS-line. Although the Sony 4K´s are very sharp too, the Z1 seems even sharper. Dynamics are certainly good too, I really did not feel like it fell through in that regards either, and I´m a sucker for blacks... Not as good as the RS600 though, which is just amazing in terms of blacks and overall dynamics. So; good, but not best in terms of dynamics... Still, the added light output, the increased sharpness, and overall performance makes this a very nice unit indeed.
I´d also say that it needs to run in high laser mode and as such be placed in a technical room if you´re using a screen width of more than 10 feet since you do need to dial down the iris quite a lot (-8 or more) to get the dynamics flowing... This is according to my preferences in regards to noise level. Although the hum is quite low frequent even in high laser output mode, I would personally prefer to leave it in a technical room in that mode. I guess this is subjective though! In medium and low laser mode it seems very quiet...
JVC_DLA-RS4500_Z1 brochure.pdf
Moi je vise un laser J'aurais aimé un JVC mais je reste sur le EPSON pour le moment beaucoup moins chère mais il n'est pas 4K J'attend encore avec mon SONY à lampe .
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