I can connect this to the subwoofer output of a Yamaha RX- V675 for a passive subwoofer 8 " http://www.amazon.com/CORPORATION-Product-TIC-TFS10-SL-

This is a powered amplifier, which you install in a passive subwoofer, to convert it to a powered subwoofer, if your amp has a low level output for a powered subwoofer, typically an audio jack. If your amp has R & L speaker connections for the subwoofer, they connect to a passive subwoofer.

Can I use this to push coaxial speakers? Or does this only work with subwoofers because there's no cross over filters

It has a low frequency cut-off, so it will only act as a subwoofer amp.

I've had this amp installed on a sub woofer. Decided to use it with a stereo amp using the speaker inputs/ outputs. No sound from the right output. ??

Sorry, I can't help you, I didn't hook mine up that way. I ran a single sub cord to the right channel of the low level input and it sounds great.

What is the red and black wire called ?

Red = Positive. Black = Negative

Dayton Audio Sa25 25w Subwoofer Plate Amplifier

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Description

🎵 Power your bass, own the room.

COMPACT POWERHOUSE - Delivers a true 25 watts RMS to energize your small subwoofer setup with precision.
EFFORTLESS UPGRADE - Transforms passive subwoofers into active bass beasts without complicated installation or modifications.
SEAMLESS INTEGRATION - Supports both line-level and speaker-level inputs, making it compatible with virtually any audio system.
TAILORED BASS CONTROL - Variable 2nd order low-pass crossover lets you fine-tune bass frequencies from 60 to 180 Hz for perfect room acoustics.
THUMP FREE EXPERIENCE - Built-in speaker relay eliminates annoying turn-on thumps, ensuring smooth, professional sound transitions.

The SA25 25W Subwoofer Plate Amplifier is a compact, versatile amplifier delivering 25 watts RMS power optimized for small subwoofer systems. Featuring adjustable low-pass crossover controls (60-180 Hz) and dual input options (line and speaker-level), it ensures seamless compatibility and precise bass tuning. Its speaker relay prevents turn-on thumps, providing a smooth audio experience. Ideal for upgrading passive subwoofers into active units, this amplifier is perfect for enhancing home theater sound in small to medium rooms.

Specifications

ASIN	B0002YUMY8
Best Sellers Rank	#173,178 in Electronics ( See Top 100 in Electronics ) #273 in Home Audio Subwoofers
Customer Reviews	4.0 4.0 out of 5 stars (104)
Date First Available	August 31, 2009
Is Discontinued By Manufacturer	No
Item Weight	2.5 pounds
Item model number	SA25
Manufacturer	Dayton Audio
Product Dimensions	7.48 x 4.72 x 8.66 inches

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