Reciever Design
For OPEN car speakers which are designed to be mounted into a door (you can see the back of the speaker cone):
Some car speakers have little metal tabs on them that are about 1/4 inch wide and about 3/8 to 1/2 inch long with bevelled edges. These are called “FASTON TABS”.
If you are lucky, your speakers will have this! Then all you have to do is go to Radio Shack (in the USA) or “The SOURCE” (in Canada) with one of the speakers and find the mating FASTON connector. Once you find the right connector, you can solder some speaker wire to the FASTON, and conntect it to the speaker, then connect the loose end to your receiver. Be very careful pushing on the FASTON connectors. When new they are very “stiff” and sometimes very hard to push on. If you slip, you could damage the speaker.
If you are NOT so lucky, then your speaker will likely have a solder terminal strip mounted right on the speaker. If that is the case, then you will have to solder the wire directly to the solder tab on the speaker. BEWARE: If you have to do this, then only heat the solder strip as much as required! DO NOT subject the strip to prolinged heat! The wire that comes out of the speakers voice coil is often also soldered to this solder strip! The voice coil wire is very fragile compared with regular wire! If you overheat it, you could ruin the connection and make the speaker go dead or worse – intermittent!
For CLOSED car speakers which are designed to be mounted in the rear window (the speakers are in a self contained case):
For this style of speaker, there should just be connection terminals, and you just hook up the wire between the speakers and your stereo like you would for bookshelf speakers.
No matter what speaker type you have, be sure to hook the + and – up to the receiver correctly! If you reverse the connections on one of the speakers, then your stereo will sound really bad! This is because the speakers are out of phase. If it sounds bad, try reversring the + and – connections on ONE of the speakers and see if it sounds better.
Having said that, please bear in mind that the OPEN speaker style are NOT going to sound that great. This is because speakers are meant to be used in an enclosure! Home speakers come with the enclosure when you buy them. But Car speakers often rely of the door or the trunk to form a make-shift enclosure. Car speakers are designed accordingly so that they will sound good when mounted in the car. If you just put your car speakers on the shelf and connect them, they WILL work, but likely wont sound so great.
Many years ago, there were a couple of Professional Engineers which were also Audio Hackers! Neville Thiele and Richard Small looked into the acoustical-mechanical characteristics of loudspeakers, and thus was born the Thiele-Small Parameters. These parameters are the benchmark which is now used in the design of ALL modern loadspeaker systems.
If you want your car speakers to sound good, you should design and build an enclosure for them!
Here is some general information:
http://www.the12volt.com/caraudio/thiele.asp
Understanding Thiele-Small Parameters:
http://www.electronixwarehouse.com/education/speakers/theil-small.htm
Once you understand the Theile-Small Parameters, you can begin to approach the design of the speaker enclosure. I will leave that to you – remember… Google is your friend! As is the local Public Library, or your local University Engineering Library which – no doubt – will have books on Loudspeaker Design!
Good Luck!
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Delphi SA10109 Delphi XM Roady2 Personal Audio System Review
Feb 06, 2010 21:40:05
Delphi XM Roady2 Personal Audio System - v8bro -
The item advertised was misleading. The picture shows the receiver. It was not clear the the receiver was 'not' included.
I got mine on sale for about half-price so I have no complaints about the cost. It works very well and, for me at least, will even works indoors. The battery will work around four hours while listening to satellite broadcasts. I've not tried it just on FM. It's certainly not very heavy as some have claimed, at least in my opinion.
The number one problem so far has been removing the Roady receiver after use. The fit is so tight that sometimes it takes all my strength to open the tray. However, I have discovered a solution to that. Get a very thin piece of metal, preferably very strong, such as a fingernail file. In the upper left-hand corner of the audio system the corner is curved. Very gently insert the piece of metal in this corner and very gently pry the radio to the right. You won't have to pry it very far either. So far I haven't damaged the receiver, so be sure and use a gentle touch. I've written Delphi and complained about this problem. They are aware of it, but haven't been able to figure a solution. They say the tight fit is required so the system will work properly.
Delphi SA10109 Delphi XM Roady2 Personal Audio System Feature
- Turn your Roady2 XM satellite radio receiver into a portable XM listening device
- Built-in wireless FM transmitter turns any FM receiver into an XM radio
- Rechargeable battery provides up to four hours of use
- Delivers more than 150 high-quality, XM satellite radio stations
- Measures 5 x 3 x 1.4 inches (W x H x D)
I got mine on sale for about half-price so I have no complaints about the cost. It works very well and, for me at least, will even works indoors. The battery will work around four hours while listening to satellite broadcasts. I've not tried it just on FM. It's certainly not very heavy as some have claimed, at least in my opinion.
The number one problem so far has been removing the Roady receiver after use. The fit is so tight that sometimes it takes all my strength to open the tray. However, I have discovered a solution to that. Get a very thin piece of metal, preferably very strong, such as a fingernail file. In the upper left-hand corner of the audio system the corner is curved. Very gently insert the piece of metal in this corner and very gently pry the radio to the right. You won't have to pry it very far either. So far I haven't damaged the receiver, so be sure and use a gentle touch. I've written Delphi and complained about this problem. They are aware of it, but haven't been able to figure a solution. They say the tight fit is required so the system will work properly.
Delphi SA10109 Delphi XM Roady2 Personal Audio System Overview
With a rechargeable/replaceable battery a custom-designed headset with built-in XM antenna and an AC power adaptor the Roady2 Personal Audio System gives you access to XM programming on-the-go.
Delphi SA10109 Delphi XM Roady2 Personal Audio System Specifications
The XM Roady2 personal audio system from Delphi turns your Roady2 XM Satellite Radio receiver into a portable listening device, no strings attached. You'll no longer be dependent on your XM home or car adapter kit for listening--the personal audio system includes a streamlined docking station, a headset with a built-in XM antenna, and a dedicated, compact AC power adapter for indoor use. A Roady2 XM receiver is required for use and sold separately.
The kit also expands the Roady2's performance abilities, giving you a digital FM tuner (especially handy when the XM signal is obstructed by buildings, trees, etc.) and a stock ticker so you can keep track of up to 20 of your favorite stocks while listening to your favorite XM music, news, sports, and talk channels. (Stock data is provided by Comstock, Inc.; stock and market index information is delayed by approximately 25 minutes.)
A built-in wireless XM audio adaptor transmits the XM signal to one of 12 FM frequencies, perfect for wireless use through a car stereo, boombox, surround receiver, hi-fi component tuner, or other radio. An additional volume control on the headset lets you adjust the volume of both XM and FM stations without your having to access the main unit.
A rechargeable and replaceable lithium-ion battery pack built into the docking station lasts up to 4 hours in XM mode and at least 12 hours in FM mode. The docking station's blue backlit LCD shows XM channel info as well as FM station and battery-life status.
What's in the Box
Personal audio system docking station, a built-in lithium-ion battery, a set of custom-designed headphones with an integrated XM antenna, an AC power adapter, a user's manual, and a quick setup guide.
Available at Amazon Check Price Now!
Related Products
- Delphi SA10085 Roady2 XM Satellite Radio Receiver with Built-in Wireless FM Modulator
- Belkin F8E724 XM Roady XT/XPRSS Battery Kit
- Delphi Roady XT Home Kit ( SA10176 )
- Delphi SA10102 SKYFi2 Vehicle Adapter Kit
- Delphi SA10069 Home Adapter Kit for XM SKYFi Roady or Roady2
Customer Reviews
Poor design - Robert R. Adair -
The item works as described, the problem is the toggle switch, which has now snapped off. The customer service advises that if it isn't under warranty then they cannot repair it. Poor product support. Not worth the cost when you can't get it repaired if not under warranty.
My older XM just got portable - Mcgyver - Cleveland, Ohio
I was amazed that in this world of planned obsolescence I could find a device that would convert my old roady2 into a portable live on air XM reciever with an FM radio to boot! The battery life is excelent and the design is logicaly cool. the only drawback is that there is no way to lock the controls to prevent accidental volume or chanel changes. it is the same size as a standard walkman and fits nicely innto my coat pocket. The reception is great, even indoors.
Delphi XM Roady2 Personal Audio System - v8bro -
The item advertised was misleading. The picture shows the receiver. It was not clear the the receiver was 'not' included.
In Stock. FAST Shipping! Get It Now!
*** Product Information and Prices Stored: Feb 06, 2010 21:40:05
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