Sonic Impact Bridge to single channel?

zapwizard · 8th March 2006, 09:03 PM

Could the Sonic Impact be bridged into a single channel 30-watt amp?

I want to install some Sonic Impact 5066 amps to replace the headunit amp in my car.
I have a Mac Mini carputer and touchscreen that replaced the headunit.
I plan on using my stock speakers, so I don't need much power.

I understand all the power filtering I need to do, and I have the resources to do the basic upgrades to the amplifier.

Idealy I could install one Sonic Impact per speaker.

The spec sheet on the amp looks like it's made to drive two speakers, and only two, but you guys know more about bridging speakers then I do.

Variac · 8th March 2006, 09:07 PM

Apparently it can't be bridged because each channel is already bridged internally.
That's wot people tell me.

cpemma · 8th March 2006, 09:10 PM

Each channel is already bridged, to get the maximum output from 12-14V.

For that reason (among others) don't try connecting to 3-pin headphones.

zapwizard · 8th March 2006, 09:30 PM

Hey cpemma (Assume your the same from bit-tech), good to see ya.

Ya, that is the story I am getting from the guys at my work.

Tripath's higher power amps seem to be pin-compatible and use the same external circuitry.

I wonder if you could just use the Sonic Impact as a base and upgrade the Amp chip for a bit more power. (Small heatsink mabye)
http://www.tripath.com/downloads/TA2021B.pdf

cpemma · 8th March 2006, 11:25 PM

Hi, Zap, only 1 cpemma

Have a look at the kits from 41Hz, a bit more expensive than the SI but still beer-money. Amp6 will go a mite louder before distortion gets OTT but fitting the music signal into +/-7V (less losses) slot is the limiter on wattage in any car amp without an inverter to step the supply up.

Having got the T-Amp, it's given me the confidence to go Amp6, see Panomaniac's site for the bass extension (and useful power figures).

Pano · 9th March 2006, 03:28 AM

We need to get the Wiki/FAQ posted at the top of this forum page.
Seems like no one is finding or reading it.
Always the same questions....

Can the moderators make the FAQ or a link to it, a sticky at the top?

zapwizard · 9th March 2006, 04:59 PM

I did discover the 41hz kits in my travels yesterday, and ordered two Amp 3 kits.

If I need more then 25 watts per channel it's not a huge loss, and I can use the amps somewhere else in the house.

8th March 2006, 09:03 PM	#1
zapwizard diyAudio Member Join Date: Mar 2006 Location: Austin, TX	Sonic Impact Bridge to single channel? Could the Sonic Impact be bridged into a single channel 30-watt amp? I want to install some Sonic Impact 5066 amps to replace the headunit amp in my car. I have a Mac Mini carputer and touchscreen that replaced the headunit. I plan on using my stock speakers, so I don't need much power. I understand all the power filtering I need to do, and I have the resources to do the basic upgrades to the amplifier. Idealy I could install one Sonic Impact per speaker. The spec sheet on the amp looks like it's made to drive two speakers, and only two, but you guys know more about bridging speakers then I do. __________________ www.ZapWizard.com www.AustinModders.com

8th March 2006, 09:07 PM	#2
Variac diyAudio Editor Join Date: Dec 2001 Location: San Francisco, USA	Apparently it can't be bridged because each channel is already bridged internally. That's wot people tell me. __________________ Burning Amp Festival Sunday, October 28th, 2012 in S.F. We need Volunteers & sign-up's for what you're bringing!

8th March 2006, 09:30 PM	#4
zapwizard diyAudio Member Join Date: Mar 2006 Location: Austin, TX	Hey cpemma (Assume your the same from bit-tech), good to see ya. Ya, that is the story I am getting from the guys at my work. Tripath's higher power amps seem to be pin-compatible and use the same external circuitry. I wonder if you could just use the Sonic Impact as a base and upgrade the Amp chip for a bit more power. (Small heatsink mabye) http://www.tripath.com/downloads/TA2021B.pdf __________________ www.ZapWizard.com www.AustinModders.com

9th March 2006, 03:28 AM	#6
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	We need to get the Wiki/FAQ posted at the top of this forum page. Seems like no one is finding or reading it. Always the same questions.... Can the moderators make the FAQ or a link to it, a sticky at the top? __________________ Take the Speaker Voltage Test!

9th March 2006, 04:59 PM	#7
zapwizard diyAudio Member Join Date: Mar 2006 Location: Austin, TX	I did discover the 41hz kits in my travels yesterday, and ordered two Amp 3 kits. If I need more then 25 watts per channel it's not a huge loss, and I can use the amps somewhere else in the house. __________________ www.ZapWizard.com www.AustinModders.com


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8th March 2006, 09:10 PM	#3
cpemma diyAudio Member Join Date: Jul 2003 Location: S Yorkshire OK	Each channel is already bridged, to get the maximum output from 12-14V. For that reason (among others) don't try connecting to 3-pin headphones.

8th March 2006, 11:25 PM	#5
cpemma diyAudio Member Join Date: Jul 2003 Location: S Yorkshire OK	Hi, Zap, only 1 cpemma Have a look at the kits from 41Hz, a bit more expensive than the SI but still beer-money. Amp6 will go a mite louder before distortion gets OTT but fitting the music signal into +/-7V (less losses) slot is the limiter on wattage in any car amp without an inverter to step the supply up. Having got the T-Amp, it's given me the confidence to go Amp6, see Panomaniac's site for the bass extension (and useful power figures).

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