I have a 100' HDMI cable with a repeater that was installed by the A/V company that did the prewire to my house. I went to connect my Denon 3808CI to a my Samsung 52A650 the other day and wasn't able to get a connection from the Denon or from my PS3 over the HDMI (which by the way has a red light on in the inline module not the green light) . I talked with the installer and he is telling me that I am probably going to need a HDMI amp in addition to the repeater cable he installed.

Does this sound right ?? ... I thought the whole idea behind the repeater was to amplify the signal for the length of the manufactured cable run.

If so can anyone suggest a HDMI amplifier thats reasonable ... he suggested one that retails for $900 which just sounds ludacris (especially when you have been spoiled with monoprice prices :D )

If the repeater is part of the cable it should be adequate to give you a good signal over the cable. (The repeater is at the receiving end of the cable, correct? Or is the red light telling you it's installed incorrectly at the transmit end?)

If you're not getting a signal, I doubt that another amp will help. The problem usually is not lack of signal amplitude but distortion of the signal over a long cable which makes it impossible to distinguish one's form zero's. Only a equalizer amp can help that, and it sounds like you already have one of those. Certainly $900 sounds incredably overpriced for such an amp.

Can you try it with a shorter cable to see if it works with that?

Yes, the repeater is at the receiving end & thats where the red light is. The problem is the cable was installed in the wall during construction ($250 extra just for a 28awg 100ft cable) to be pulled with the rest of the cable. So removal and replacement is not really an option

28AWG seems somewhat small for a 100ft cable. Who makes it? Perhaps you can contact them to see if they have any suggestions.

Yes, the repeater is at the receiving end & thats where the red light is. The problem is the cable was installed in the wall during construction ($250 extra just for a 28awg 100ft cable) to be pulled with the rest of the cable. So removal and replacement is not really an option
Agree with above post, 28awg doesn't seem to be the appropriate gauge for that lenght.

Also, is it possible that cable could have gotten kinked or some slight damage during construction?

Personally that's pushing it for HDMI lengths. I'm surprised they didn't suggested a CAT5 connection between HDMI balluns. If it's in a conduit, that's an easy fix, if not... could be a hassle.

I agree with the hdmi baluns. Hopefully, your installer ran a couple of cat5 wires. If I were your installer, I would have never ever made a run over 50ft with hdmi on a prewire. Also, beleive it or not, usually the only hdmi's available over 50ft are extremely low quality with the exception of Key Digital. There is no guarantee that it will work. You can bench test all you want, but the bench test will never account for interference via high voltage lines and rf interference (cordless phones, wifi, etc). All of these things make a difference when you are trying to run 3gps through a line. Run the baluns, if your cat5 (you will need two cat5 lines) is already terminated, you can find them for around $500. Go with gefen, they make the best and will last forever and they include the HDMI jumper cables on each end.