While searching for large amplifiers to begin a journey towards large subwoofers for LFE and musical enjoyment, I cam across a deal for 4 (FOUR!) large Crown amplifiers, 2 CE2000's and 2 CE1000's, included were 2 CARVIN TRX-18 dual 18" subwoofers. I wrote a check and hauled it all home on a trailer.
Yes, they are comically large. As I pulled them up the front stairs, my girlfriend says, "You don't want to be married, huh? " - Nope. LoL !
So, I hooked up both sets of twin 18's, and set one CE2000 on each box, bridged to 4ohm, for a 2,000W RMS potential. Plenty.
I added a ROLLS box to take the RCA to balanced XLR input with a DSP-LF box upstream of that.
My SONY SNR-DN1080 has dual Sub outputs. I cut off those big JBL dual 10's at 120hz HP in the Sony and then manually X-over the big subs at 120Hz LP in the DSP-LF, (plus it's own driver, enclosure, and room correcting autotune).
Deep bass and LFE is amazing.
Question 1; What type of enclosure is this CARVIN TRX-18? It has two openings for each 18, yet it is not a port. A infinite baffle box?? 🤔
Question 2; Having way more power than I need, would I be better served building a sealed or ported box with these 18's ? - or selling them and starting from scratch on a large 18 or 21" based sub enclosures.
Thank you for any advice!!
-Paul
Yes, they are comically large. As I pulled them up the front stairs, my girlfriend says, "You don't want to be married, huh? " - Nope. LoL !
So, I hooked up both sets of twin 18's, and set one CE2000 on each box, bridged to 4ohm, for a 2,000W RMS potential. Plenty.
I added a ROLLS box to take the RCA to balanced XLR input with a DSP-LF box upstream of that.
My SONY SNR-DN1080 has dual Sub outputs. I cut off those big JBL dual 10's at 120hz HP in the Sony and then manually X-over the big subs at 120Hz LP in the DSP-LF, (plus it's own driver, enclosure, and room correcting autotune).
Deep bass and LFE is amazing.
Question 1; What type of enclosure is this CARVIN TRX-18? It has two openings for each 18, yet it is not a port. A infinite baffle box?? 🤔
Question 2; Having way more power than I need, would I be better served building a sealed or ported box with these 18's ? - or selling them and starting from scratch on a large 18 or 21" based sub enclosures.
Thank you for any advice!!
-Paul
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At a glance it looks like it has four triangular vents in the corners of each driver 'box', so basic prosound BR.
Those are bass reflex. Last I heard they were loaded with Eminence Kilomax drivers which are not very good compared to just about anything else in the pro audio spectrum, and yeah that drivers specs suggest a massive enclosure is needed. You can have the same or better results with modern drivers in enclosures a fraction of the size.
No complaints really, an upgrade from an earlier Sony 7 channel, but now I have ATMOS. The STR-DN1080 came to me from a Facebook add for a broken amp.... Took it home for $30. Fixed 2 fried MOSFETS for $12 in parts. New fuse, and I was in business! Cheapest ATMOS amp ever? 🙂
I am craving even more to move to a full 7.2.4 ATMOS configuration and going to separates, as I have so many big amps and small amps ready to go, plus a 5' tall Amp cabinet.