Hey Swez, a little while back you had told me not to bridge an amp I had (Sony 280 GTX) I was running it bridged in parallel to two 10' single voice coil subs (300rms 650 peak). Well you were right! It did sound good but got very hot and went into protection shutdown.I had an older Lanzar opti 2100 that I had around (I don't think they make Lanzars the way they used to) and decided to try it.Right now it sounds pretty good and doesn't seem to be getting that warm. What's your thoughts? These are the specs on the Lanzar. 50W per Channel Into 4 ohms.
- 100W per Channel Into 2 ohms.
- 200W Mono Bridged @ 4 ohms.
- Optically Coupled Power Supply Connections.
- Built-In 45dB Bass Boost @ 45Hz.
- Gold Plated RCA Connectors.
- Mosfet Power Supply.
- Simultaneous Stereo/Mono Operation.
- Mute On/Off Circuit.
- Discrete Fully Complimentary Triple Darlington Output Stages.
- Built-In Short and Thermal Protection Circuits.
- Stealth Mounting Design.
- Variable Gain Control.
- Built-In Sub-Bass Crossover @ 90Hz.
Replies (1)
swez on 08/31/2004 09:21:52
You can bridge this amp into MONO and power your subs, only if you wire the subs in series for an 8 ohm load. Same idea with the Sony amp. The only problem... you'll lose about 3dB of potential output from either amp. Meaning... if a bridged amp can put out 200 watts into a 4 ohm load, it will give you 100 watts at 8 ohms. (3dB less)
Neither amp is recommended for 2 ohm loads in MONO bridged mode. The Lanzar will give you 50 watts per sub this way. (NOT MUCH huh?)
NOTE: I am assuming your subs are 4 ohm SVC's?
Swez
- 100W per Channel Into 2 ohms.
- 200W Mono Bridged @ 4 ohms.
- Optically Coupled Power Supply Connections.
- Built-In 45dB Bass Boost @ 45Hz.
- Gold Plated RCA Connectors.
- Mosfet Power Supply.
- Simultaneous Stereo/Mono Operation.
- Mute On/Off Circuit.
- Discrete Fully Complimentary Triple Darlington Output Stages.
- Built-In Short and Thermal Protection Circuits.
- Stealth Mounting Design.
- Variable Gain Control.
- Built-In Sub-Bass Crossover @ 90Hz.
Replies (1)
swez on 08/31/2004 09:21:52
You can bridge this amp into MONO and power your subs, only if you wire the subs in series for an 8 ohm load. Same idea with the Sony amp. The only problem... you'll lose about 3dB of potential output from either amp. Meaning... if a bridged amp can put out 200 watts into a 4 ohm load, it will give you 100 watts at 8 ohms. (3dB less)
Neither amp is recommended for 2 ohm loads in MONO bridged mode. The Lanzar will give you 50 watts per sub this way. (NOT MUCH huh?)
NOTE: I am assuming your subs are 4 ohm SVC's?
Swez
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