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Re: Horn loaded Corona Build [message #91940 is a reply to message #91915]

Sun, 24 May 2020 08:45

dawiipgh
Messages: 12
Registered: May 2020

Chancellor

Hi Wayne,

I've been searching through the FAQ, threads and other website locations. I found the performance data of the 4 Pi speakers:
https://www.pispeakers.com/Measurements/fourPi.html

Your note at the bottom states that "Measurements were taken at a distance of 10 feet from the baffle and drive voltage was 8.62vrms. This is equivalent to 2.83v/M and 1W/1M values since average impedance is 8Ω."

Interpreting the graph, it looks like the 4 Pi speakers clock in around 98-99 dB/W/1M. This is incredibly efficient!

I was considering purchasing an integrated Amp from Yamaha to power the 4 Pi speakers.
https://usa.yamaha.com/products/audio_visual/hifi_components/a-s301/
60 watts x 2 channels into 8 ohms (20-20,000 Hz) at 0.019% THD

This should be able to provide ample power to drive these speakers. A quick calculation taking into account 99 dB/W/1M efficient speakers and 60 Watts of Power at 8 feet listening distance in a room with speakers positioned ~2 ft from the walls gives a an estimated SPL of 115 dB. This is more than enough.

My question comes to what plate amp to use for the flanking sub. I believe I read that the driver for the sub is the Eminence Lab 12 in a large ported box tuned to 20Hz https://www.eminence.com/speakers/speaker-detail/?model=LAB_12

I was considering the Bash 300S or the Bash 500S.
https://www.parts-express.com/bash-300s-digital-subwoofer-plate-amplifier-300w-rms--300-750
or
https://www.parts-express.com/bash-500s-digital-subwoofer-plate-amplifier-500w-rms--300-752

I can't seem to find an amp that the second order roll off that is discussed here.

Any plate amp suggestions or guidance is much appreciated.

Thanks!

dawiipgh

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[Message index]

		Horn loaded Corona Build By: dawiipgh on Fri, 15 May 2020 13:39
		Re: Horn loaded Corona Build By: Wayne Parham on Fri, 15 May 2020 13:50
		Re: Horn loaded Corona Build By: dawiipgh on Fri, 15 May 2020 13:55
		Re: Horn loaded Corona Build By: Wayne Parham on Fri, 15 May 2020 14:01
		Re: Horn loaded Corona Build By: Rusty on Sat, 16 May 2020 08:54
		Re: Horn loaded Corona Build By: dawiipgh on Sat, 16 May 2020 13:16
		Re: Horn loaded Corona Build By: Rusty on Sat, 16 May 2020 14:10
		Re: Horn loaded Corona Build By: Wayne Parham on Sat, 16 May 2020 14:36
		Re: Horn loaded Corona Build By: dawiipgh on Mon, 18 May 2020 07:41
		Re: Horn loaded Corona Build By: Rusty on Mon, 18 May 2020 09:13
		Re: Horn loaded Corona Build By: dawiipgh on Tue, 19 May 2020 15:43
		Re: Horn loaded Corona Build By: Wayne Parham on Tue, 19 May 2020 15:59
		Re: Horn loaded Corona Build By: dawiipgh on Sun, 24 May 2020 08:45
		Re: Horn loaded Corona Build By: Wayne Parham on Sun, 24 May 2020 10:59
		Re: Horn loaded Corona Build By: dawiipgh on Wed, 03 June 2020 14:32
		Re: Horn loaded Corona Build By: Rusty on Wed, 03 June 2020 15:34
		Re: Horn loaded Corona Build By: Wayne Parham on Wed, 03 June 2020 17:48
		Re: Horn loaded Corona Build By: dawiipgh on Thu, 04 June 2020 09:05
		Re: Horn loaded Corona Build By: Rusty on Thu, 04 June 2020 09:57
		Re: Horn loaded Corona Build By: dawiipgh on Thu, 04 June 2020 10:22
		Re: Horn loaded Corona Build By: Rusty on Fri, 05 June 2020 07:36
		Re: Horn loaded Corona Build By: Barryso on Fri, 05 June 2020 16:59
		Re: Horn loaded Corona Build By: dawiipgh on Wed, 12 May 2021 08:48
		Re: Horn loaded Corona Build By: Rusty on Wed, 12 May 2021 09:59
		Re: Horn loaded Corona Build By: Wayne Parham on Wed, 12 May 2021 12:12
		Re: Horn loaded Corona Build By: Jetpump on Sat, 15 May 2021 10:31
		Re: Horn loaded Corona Build By: dawiipgh on Fri, 16 September 2022 10:13
		Re: Horn loaded Corona Build By: Wayne Parham on Fri, 16 September 2022 11:47
		Re: Horn loaded Corona Build By: dawiipgh on Sat, 17 September 2022 13:50

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