Reply to thread

Message

<blockquote data-quote="Doxquzme" data-source="post: 8870014" data-attributes="member: 689267">Every dyno test I&#039;ve ever watched on the ACM 4.300 indicates it is very underrated. You will not hear any difference at all in my opinion. A doubling of&nbsp; power is needed to create a 3 db difference to the ear, 9-10 for a perceived doubling of the volume.50 to 100 x 4 for 3db100 to 200 x 4 for 6db200 to 400 x 4 for 9db.The Sundown SFB-1000.4D will get you close to double volume (not like you can or will actually be able to do this, but...)The <a href="https://www.down4soundshop.com/sundown-audio-sfb-1000-4d-4-ch-full-range-amplifier/?srsltid=AfmBOor2bxSdSbufqRAc833mgrQjKFL3HOpgfsUXCB2f7wMuemDenda6gyA" target="_blank">https://www.down4soundshop.com/sundown-audio-sfb-1000-4d-4-ch-full-range-amplifier/?srsltid=AfmBOor2bxSdSbufqRAc833mgrQjKFL3HOpgfsUXCB2f7wMuemDenda6gyA</a>Got one ready for ya, BNIB, $375[URL unfurl=&quot;true&quot;]https://www.caraudio.com/threads/all-bnib-focal-fdp-4-600-ds18-exl-p2500-1-sundown-audio-sfb-1000-4d-350x4-4ohms.614462/[/URL]That said, I did notice a difference when I went from the ACM 4.300 to the Soundigital 2000.4 Evox for sure. Detuned a bit, but my midbass drivers really came to life with the extra power and I always like the versatility of having more power than I can use.</blockquote>

[QUOTE="Doxquzme, post: 8870014, member: 689267"] Every dyno test I've ever watched on the ACM 4.300 indicates it is very underrated. You will not hear any difference at all in my opinion. A doubling of power is needed to create a 3 db difference to the ear, 9-10 for a perceived doubling of the volume. 50 to 100 x 4 for 3db 100 to 200 x 4 for 6db 200 to 400 x 4 for 9db. The Sundown SFB-1000.4D will get you close to double volume (not like you can or will actually be able to do this, but...) The [URL]https://www.down4soundshop.com/sundown-audio-sfb-1000-4d-4-ch-full-range-amplifier/?srsltid=AfmBOor2bxSdSbufqRAc833mgrQjKFL3HOpgfsUXCB2f7wMuemDenda6gyA[/URL] Got one ready for ya, BNIB, $375 [URL unfurl="true"]https://www.caraudio.com/threads/all-bnib-focal-fdp-4-600-ds18-exl-p2500-1-sundown-audio-sfb-1000-4d-350x4-4ohms.614462/[/URL] That said, I did notice a difference when I went from the ACM 4.300 to the Soundigital 2000.4 Evox for sure. Detuned a bit, but my midbass drivers really came to life with the extra power and I always like the versatility of having more power than I can use. [/QUOTE]

Verification