CURRENTLY SOLD OUT
About this product
Product Identifiers
BrandChannel Master
MPNCM7777HD
Ean0020572177771
GTIN0020572177771
UPC0020572177771
ModelAmplify Adjustable Gain
eBay Product ID (ePID)4034757317
Product Key Features
FeaturesHDTV Signal, Built-In Amplifier, Gain Booster
TypePreamplifier
Dimensions
Weight12.5 Oz
Additional Product Features
Frequency BandUHF, Vhf, Fm
Custom BundleNo
Indoor/OutdoorIndoor & Outdoor, Outdoor, Indoor
Ratings and reviews
Most relevant reviews
- 23 Jun, 2020Most favourable review
Channel Master TV amplifier and antenna
I put the amplifier on top of my television antenna that I had also purchased from channel master which is on the roof. There are two settings on the amplifier high and low. It is a bit ackward to have to go up on the roof to change the setting to get a particular station. If I leave the setting on high for some reason I don't receive as many stations as when I leave it set to low. On the other hand the fringe stations don't come in when it is on the low setting. I am still happy with the combination of antenna and amplifier as I get around 40 free channels of television.Verified purchase: YesCondition: Pre-owned
- 07 Mar, 2019Most critical review
Dropped signal strength
I was surprised the drop in signal strength when this amp was put inline. The Samsung TV's meter showed a drop of about 2/3 the strength on the low 17db gain setting and a drop of about 1/3 the original level on the 30db gain setting. Though I also saw the minimum strengths of all channels be about even so maybe it levels out the signals to be more "normal" compared to each other.Verified purchase: YesCondition: Refurbished
- 16 Feb, 2021
Great Product
Simple to use and has the unique advantage of featuring two amplification settings for various applications. And offered by one of the decades old, legacy U.S. brands.Verified purchase: YesCondition: Pre-owned
- 10 Jul, 2020
not perfect,makes a difference
The item is pricey. Used at first at the TV end brought in more channels but many shaky. Switched to antenna (attic mounted) with improvement. The unit definitely improves quality,but honestly expected more since the bulk of station antenna are within 20-30 miles. Line of sight not terrible here, but with OTA there can be many factors, so I can't fault this unit as the problem.Still a work in-progress to get the best signal.Verified purchase: YesCondition: Pre-owned
- 19 May, 2020
Works but defective power cord
I would have given this product a 5-star rating if the power cord wasn't defective. Didn't stay on until I replaced the cord. I live on Cayon Lake, which is about 40 miles north of San Antonio and 40 miles south of Austin Texas. I pick up four channels from Austin and four from San Antonio. Before the Channel Master they would only periodically come in. Now most of them come in all the time.Verified purchase: YesCondition: Pre-owned
- 28 Feb, 2017
Compact and bulletproof
I had installed a large Channel Master antenna in my attic, and connected it to my existing coax network. Signal loss in the network resulted in fewer channels at my TVs, compared to the indoor antennas I already had. This amplifier fixed the problem.Verified purchase: YesCondition: Refurbished
- 31 Mar, 2020
The Channel master 777HD was just the ticket
The Channel master 777HD was just the ticket to help with poor digital reception it gave me an additional 10 channels, making the total for my area 36, depending on the height of your antenna. It was easy to install and allowed me to choose between high and low gain (Boost).
Verified purchase: YesCondition: Pre-owned
- 25 Apr, 2018
Works well
Product works great. I have a homemade antenna and it increased the reception greatly. Gives me about a 45 mile radius from my location. Highly recomend.
Verified purchase: YesCondition: Refurbished
- 10 Nov, 2017
Better than expexted
I have a mohu sky60 and it works good. The little in line booster it came with didn’t power well and died rather quickly. Before even trying a warranty claim. I googled up powered antenna boosters when I found the website for channel master items. Very good website to navigate website recommended this item. Very easy to connect and now I power up 3 TVs with no more “no signal” issues. I highly recommend this product and works much better than I thought! This item comes with a high and low boost option, I only have it on low and I live in a area with lots of trees and neighbors. Works great!Verified purchase: YesCondition: Refurbished
- 30 Jan, 2021
Works great!
I have gone through 4-5 amplifiers prior to the Channel Master. They all did a so so job of bringing in the weak stations. And a poor job of keeping that signal up to additional TVs. But the Channel Master delivers on its promises! All 3 of our sets now get all of the stations in our area. I am going to buy one for our camper as well. I am very happy with this unit.Verified purchase: YesCondition: Pre-owned
