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Plate amp for 3pi subs [message #95083] Sat, 15 January 2022 09:40 Go to next message
Jensen is currently offline  Jensen
Messages: 14
Registered: April 2020
Chancellor
5 degrees and blowing 30mph this morning... it's clearly Project Season.

I'm ready to build a pair of subs to compliment my 4pis (that I love). They would be strictly for music (no HT) and need to support a 20'x20' room at moderate SPL.

For a myriad of reasons, I'd like the following signal chain: DAC> balanced XLR> sub plate amp (3pi)>balanced XLR> monoblock > 4pi

Would a pair of Dayton Audio SPA250 amps be a reasonable solution? If so, is there any need for the DSP model? Thanks, J
Re: Plate amp for 3pi subs [message #95085 is a reply to message #95083] Sat, 15 January 2022 16:16 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18669
Registered: January 2001
Illuminati (33rd Degree)

The SPA250DSP plate amp will work just fine, and yes, you'll need the DSP version for flanking subs because it will allow you to set the low-pass filter to 12dB/octave. It will also work for distributed multisubs if you decide to add one or two of those later. So it will give you all the flexibility you'll need.
Re: Plate amp for 3pi subs [message #95087 is a reply to message #95085] Sun, 16 January 2022 07:24 Go to previous message
Jensen is currently offline  Jensen
Messages: 14
Registered: April 2020
Chancellor
Thank you Wayne. I'll keep the board updated on the project.
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