I've tried and owned many a Carvin gear.
I will have to say as of recently they have really turned things around.
I was never a fan of any of their Redline bass products. I used to have intermittent problems with mine. r1000 and matching 810 cab (though back then, Carvin didn't use as robust internal parts as they do now and the cab just couldn't handle the extreme lows of a 5 stringer without farting out)
The new line of products they have now are absolutely top notch. (In construction and in value) I'm talking specifically from experience with the BRX line of bass amplification. Solid gear IMHO & IME. The tone the B1500 gets is very beefy with a lil growl. Amazing solid state amp.
They have since then replaced the Redline series with the new BR series. Which seems to be better in options as well as construction, though i've only had a chance to play through one for a couple of days.
As far as their cabs go.... I swear by their BRX Neo Cabs.
Hands down.... they are what i use exclusively as my backline cabs. 4-4x10, 4- 2x12 (they no longer make the 2x12)
The construction is that of which i wish alot of other companies started to use. Special Eminence Neodymiums, Steel handles, TITANIUM Tweeters (excellent crisp high end response without the brittleness..... has attenuator in the back too), 1/4 and Speakon ins and outs....industrial grade 3-inch casters, Duratex Truckbed liner (an option i wish more companies would follow suit with)
Soundwise these cabs deliver. They have a very tight and fast transient response. And are very very efficient in the handling and using of power. I would not hessitate or lighten my touch on my 5 string's B (sometimes tuned down to F#) In fact i like leaning into the lower notes now. These cabs can handle it!
Anyway, as far as the BR series cabs.... They are decent cabs, but IME sometimes they tend to fart out the subsonic lows.
This brings me to Carvin Poweramps.....
I own a total of 15 of them. They are used in heavy rotation during our tours throughout the US...(as with my BRX Cabs)
A majority of the power amps that are in use are alloted for our PA (EAW and TCS Audio!!) As a band we heavily rely on DCM1000s, but even more so on DCM2500. These are ROBUST and very very reliable poweramps. They take a beating and can handle the heat and almost anything you can throw at em 7 days a week. (i would recommend cleanning the fan and the heatsink out every 6 months ) But seriously these poweramps have plenty power and plenty of headroom.
As for BASS Equipment.... i do use a DCM 4000 exclusively for my rig. (overkill? yeah.... a tad bit, but then again i have 4 full stacks on stage almost every night depending on the venue that is)
Anyway, i hope this helps....
Cause now my Carpul tunnell is flaring...