With many PA speakers being much more efficient than domestic ones (100+db 1w1m), could you use a mid power domestic amp (80w 4ohm, 50w 8ohm) to drive them?
Not to ear splitting levels, but for background music and occasional party volume.
Not to ear splitting levels, but for background music and occasional party volume.
That is what I am doing in my living room. I have 101 db 1w 1m Peavey SP2-XT on poles at one end of the room. I drive about 1.25 Vav base level@8ohms - so 1/6 watt base level. I have an amp that will peak out at 70 W/ch. 55 db peaks off LP's would be 10 W. 70 db peaks off CD's would be 40 W. So I have plenty of headroom for the cannon shot in 1812 Overture.
When I tried out the maximum power out of the diy amp (AX6) with a Rihanna track, I got 70 W for a second at a time on the bass notes. P=(V^2)/R
When I tried out the maximum power out of the diy amp (AX6) with a Rihanna track, I got 70 W for a second at a time on the bass notes. P=(V^2)/R
If you have tops and 1 or more subs to power at home, you might want to try this tpa3116 2.1 board. Power it with a laptop adapter. It has a variable low pass for the sub, a high pass/full range switch and is so power efficient that it pays back for itself quickly.
Thanks gents. That is extremely helpful.
The power consumption figures are interesting too. I am trying to work out current draw for a mobile battery set up.
The amp that I am considering is the FX Audio D802C pro
fx-audio d802c pro wireless bluetooth 4.2 support aptx nfc usb aux optical coaxial pure digital audio amplifier 24bit 192khz Sale - Banggood.com
I am either going to use a 45ah car battery stepped up to 24v, or Li-Ion 18650 6s6p circa 25v circa 12ah.
The power consumption figures are interesting too. I am trying to work out current draw for a mobile battery set up.
The amp that I am considering is the FX Audio D802C pro
fx-audio d802c pro wireless bluetooth 4.2 support aptx nfc usb aux optical coaxial pure digital audio amplifier 24bit 192khz Sale - Banggood.com
I am either going to use a 45ah car battery stepped up to 24v, or Li-Ion 18650 6s6p circa 25v circa 12ah.
The Pyle PTA1000 is cheap...but through guitar and a bunch of dirt turned off all the processor modulation...I still hear something that sounds like modulation and especially lower stuff. sounds like a very slight upward chorus....almost ghost like.
Change the filters/over-filter hearing anything like that and dry....
what you speak of and many are the bare minimum on filtering and quality...and probably stuff wasn't specifically selected for audio like ESR and good Ripple Current.
Change the filters/over-filter hearing anything like that and dry....
what you speak of and many are the bare minimum on filtering and quality...and probably stuff wasn't specifically selected for audio like ESR and good Ripple Current.
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