Showing posts with label ht. Show all posts
Showing posts with label ht. Show all posts

12/09/2011

ButtKicker BK-LINK RF Wireless System Review

ButtKicker BK-LINK RF Wireless System
Average Reviews:

(More customer reviews)
I have to add my .02 cents here. First of all, the rambling review quoting transducer frequencies is wrong. He did give the unit 5 stars, however he tries to defend the unit by attempting to invalidate the reviews of the unit when used with a subwoofer rather than the BK shakers.
Guitammer clearly states this unit can be used with a standard subwoofer which is specifically what I needed it for. I read the reviews here and decided to keep looking but after a fair amount of research, I found no other devices claiming the (sonic) frequency range of the BK-Link. Other wireless units were offered in sets and were intended for use with rear surrounds. Along with being more expensive, they also claim 20Hz to 20KHz audio which is standard speaker range. It's also the range of human hearing (generally) but subs are also about feeling. Both of my subs go well below 20Hz and I wanted to be sure I would get all of the performance out of them that they are capable of giving.
The operating frequencies of the BK-Link unit start at 5Hz. The upper range is stated to be 350Hz. Much higher than anyone should need for the intended uses.
So... I went ahead and got this and figured I could return it if it was unacceptable.
I was prepared to chase down any hum, something I'm quite experienced at. But, there was no hum to chase. I plugged it in, hooked it up, and it worked.
I played one of my favorite sub tests, the crash sequence from "Flight of the Phoenix(2005)", as I am very familiar with my sub's performance with this material and I see, or should I say hear, no difference between a line and the BK-Link.
No discernible delay was added nor was any loss of volume or tone obvious. This held true for music tracks also.
Testing for speed and accuracy, I reached for "Fade to black" which has a prolonged rapid double bass kick at the end that will trip up inferior subs even with direct connection. Again, no difference with the BK-Link compared to a direct line.

The send unit sends, the receiver receives, the woofer woofs. End of story. It also does so out of sight and out of mind. Which it should.

I realize hum is a genuine issue in a lot of systems. I also know it can almost always be remedied. My $5K component pre/pro and amp had their share of (humming) gremlins when added to my somewhat extensive HT setup and that's with balanced interconnects. After working through my system, I resolved all issues one-by-one.

After seeing and now using the BK-Link, I think it is no exception. Although my system is already quite settled, the BK-Link brought no NEW issues to the party. Meaning, most likely, if you're having issues, it's with a system that was already prone to have issues. You may run into problems adding ANY new device to your system. You just need to do some homework and you will, with very few exceptions, be able to work it out. An added bonus is, you just may find your system sounds better after resolving your newly found latent electrical issues.
P.S. Audio (dot com) has a great essay on hum busting on their website. It is really a great piece with lots of great ideas for fixing these issues. Perhaps if some who've reviewed this item poorly happen to read this, they can take another shot at it armed with a little more information.
If you're having a problem with the BK-Link, I wouldn't be so quick to blame the unit. ALL HT components are susceptible to some extent. The BK-Link is no different.
As my Mama always said, "don't throw out the baby with the bath water".
The BK-Link DOES work with Subwoofers. It works as well as I could possibly have hoped and I am extremely pleased with it.

Click Here to see more reviews about: ButtKicker BK-LINK RF Wireless System

If you have the ButtKicker LFE low-frequency effect system you already know what a powerful bass effect it adds to your home-theater entertainment or other audio system. Now you can add the ButtKicker LINK RF Wireless unit to your system's design, allowing you to expand the locations where your ButtKicker LFE units can go and remove the unsightly tangle of connecting wires.
The ButtKicker LINK RF Wireless package uses a transmitter and receiver that transmits radio-frequency waves, allowing your ButtKicker LFE unit to communicate wirelessly with the rest of your audio system. Set-up is simple, with the transmitter unit connecting to your subwoofer or audio/video processor, such as your stereo or television, via an RCA cable, and the receiver unit attaching either directly to your ButtKicker LFE or your ButtKicker Power Amplifier via another RCA cable.
Operating on the 900 MHz bandwidth with a frequency range of 5 to 350 MHz, these two units can communicate over several dozen feet -- even through walls and ceilings. Enjoy the amazing effect of the ButtKicker audio system anywhere in your home or business at ease by utilizing the ButtKicker LINK RF Wireless package.
What's in the Box Transmitter unit, receiver unit, two AC adapters, and two 1.5-meter RCA male to male cables.

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8/05/2011

3.5mm Audio Extension AUX Cable (Male to Male) for HTC EVO 4G (Black) Review

3.5mm Audio Extension AUX Cable (Male to Male) for HTC EVO 4G (Black)
Average Reviews:

(More customer reviews)
I bought this item for my car so I could ditch the FM transmitter for my MP3 player. The plugs fit nicely, no problems there. However, the insluation coating, while flexible, is extremely thin and fragile. The bending that occurs from using the cord at the plastic base of the plug and the wire caused the insulation coating on the wire to break and expose the wire. This was true on both sides of the cord after two days. The signal would then go in and out. The wires inside the cord and not insulated at all. They are bare copper wires, the only insulation being the black outer insulation. Most cords use insulated wires, inside of an outer insulation.
Do yourself a favor and pay a little more to get a decent cord. I tossed this on in the garbage after 3 days.

Click Here to see more reviews about: 3.5mm Audio Extension AUX Cable (Male to Male) for HTC EVO 4G (Black)



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7/24/2011

Soundcast SOU-SCK510 SubCast Wireless Transmitter/Receiver System for Subwoofers Review

Soundcast SOU-SCK510 SubCast Wireless Transmitter/Receiver System for Subwoofers
Average Reviews:

(More customer reviews)
First of all the seller (JCC Electronics) was fast, communicated well, and delivered to their commitments. Would buy from them again.
I was looking for a solid, accurate wireless connection for subwoofers not located within cable distance/convenience of the AVR. Purchased and evaluated the Soundcast SubCast and have to give it 5 stars +++. Here's why:
Frequency response: Measured electrically flat in the sub range of around 250Hz to below 20Hz. Actually, short of a bit of ringing in the very high frequencies (+15kHz) this device works well as a full range, 2 channel wireless audio transmitter. It is just being packaged and sold for subs in this application. Anyway, frequency response was down .3 dB at 15Hz, down 1 dB at 10Hz, and down 3.4 dB at 5Hz.
Connectivity: Comes with multiple audio cables for each end of the wireless connection so it is highly unlikely you would need to buy any additional cables. Also includes wall worts (power) for each end which is provided via USB connectors (USB cables supplied) between the wall wort and the transmitter/receiver.
Latency: All wireless solutions that transmit digitally introduce latency (delay) into the audio stream between the transmitter and receiver. Soundcast claims 15ms and I measured 15ms. Other solutions on the market are much higher than this or use analog transmission that allow static and noise injection into the audio. The latency must be accounted for in the AVR and 15 ms (around 15 feet - one foot per ms) is easily handled by most AVRs.
Interference with other 2.4GHz devices: The transmitter and receiver operate on the standard 2.4GHz band used by cordless phones, wireless networks, etc. Testing revealed no interference one way or the other between devices or external sources of interference like microwave ovens, etc. The transmitter and receiver operate on a narrow band/band hopping process that claims to virtually eliminate interference. My testing confirmed no issues.
Size/Appearance: The size of the transmitter and receiver are quite diminutive hence easy to hide. If you want to look at them, they are very attractive and have two lights in their bases - a green one indicating power, and a blue one indicating signal connectivity between transmitter and receiver.
Bottom line - if you are looking for a reliable, all-inclusive subwoofer wireless connectivity solution that won't affect the sound quality or performance of your sub, give this a look.
[...]


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