Multi-Radio combiner/amp

[K6UK]

Okay, I've been looking for this thing for a while... and finally found one so I thought I would share:

http://www.fleetradioproducts.com/img/products/model301Bdetail.jpg
www.fleetradioproducts.com

This allows you to attach up to 4 radios (or other audio sources) and feed one communications speaker. It allows you to adjust the volume level of each individual input, plus it has a master volume control and mute button.

So my CB, Ham Radio, GPS, and Scanner can all be on the same volume control.

Also gives you a beefy amplifier when you need it to be loud.
A little pricey at 199 bucks, but I'll look around for a deal.

Yes you could feed these sources into your stereo system - but I prefer to keep the stereo for music only.

Specifications and Features

* 65W @ 2Ω MAX, 45W @ 2Ω CONTINUOUS (typical mobile radio=5W)
* Use with any speaker combination from 2ohm to 16ohm
* 4 isolated inputs-compatible with any radio
* Individual level control for each input
* Remote turn-on (activation) control
* No audible "pop" or "thump" during turn-on
* RFI/EMI and alternator noise filtering
* Fully Protected Output / Thermal shutdown Protection
* Fault Diagnostics & Power ON Indicators
* Milled Cast-Aluminum Case
* Potted Remote for vibration and moisture resistance.
* Red/Green Bi-Color Status LED on remote with lens for 180 degree viewing.
* Volume knob is knurled aluminum for a quality feel.
* 6' remote cable
* 12VDC @ 4A MAX
* Frequency Response: 30Hz-20KHz
* Amplifier: 4.53 x 3.24 x 1.57" LWH w/o Flanges
* Remote: 2.5 x 2.0 x 1.5" LWH w/o Flanges
* 2 Yr. Warranty

[bulldog]

Hmmmm, interesting find. WIll probably get more useful for folks with multiple devices like you listed.

[AlexJet]

So this thing is controls your input radio speaker and giving 45W of amplifier in output :confused:

[K6UK]

This thing lets you plug 4 radios (or other audio producing electronics) into it. to drive one (or multiple if you need that) communications speaker(s). It combines the audio so you don't need a speaker for each item. And while it's at it, it amplifies the signal. Each channel has it's own volume pot so that you can equalize things... but of course you can use the volume controls on each radio to adjust to your liking.

Sometimes people try to use Y-adapters to attach multiple radios to a speaker. This can do some real damage to your radios since you are sending AC power into all the radios on a circuit. You cannot use a diode to protect each radio since the diode would convert the AC audio signal to pulsed-DC which sounds ugly.

So a transformer is the way to go (or a series of them) and that is what this is, combined with an amp, and a master volume control on their top of the line model.

-Mike

[Teotwaki]

This thing lets you plug 4 radios (or other audio producing electronics) into it. to drive one (or multiple if you need that) communications speaker(s). It combines the audio so you don't need a speaker for each item. And while it's at it, it amplifies the signal. Each channel has it's own volume pot so that you can equalize things... but of course you can use the volume controls on each radio to adjust to your liking.

Sometimes people try to use Y-adapters to attach multiple radios to a speaker. This can do some real damage to your radios since you are sending AC power into all the radios on a circuit. You cannot use a diode to protect each radio since the diode would convert the AC audio signal to pulsed-DC which sounds ugly.

So a transformer is the way to go (or a series of them) and that is what this is, combined with an amp, and a master volume control on their top of the line model.

-Mike

Nice find! It will be a nice way to avoid using the cigarette-lighter speaker adaptor for the Garmin