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The Gator Cases GRB-4U Rack Bag is a portable, lightweight 4U rack solution featuring a durable 9mm plywood interior encased in padded 600-denier nylon. Designed for easy access with threaded rack rails and zip-out flaps, it offers comfortable carrying options including padded handles and a heavy-duty shoulder strap. With large exterior pockets for accessories and proudly made in the USA, this bag delivers rugged, road-ready protection for your professional audio equipment.








| ASIN | B0002J6HM4 |
| Best Sellers Rank | #13,503 in Musical Instruments ( See Top 100 in Musical Instruments ) #28 in Stage & Studio Equipment Bags & Cases |
| Color Name | Black |
| Connector Type | XLR, 1/4" (TS) |
| Customer Reviews | 4.7 4.7 out of 5 stars (588) |
| Date First Available | April 13, 2004 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 11.3 pounds |
| Item model number | GRB-4U |
| Material Type | Stainless Steel |
| Product Dimensions | 14 x 19 x 7 inches |
| Size | 4U Rack Space |
| Standing screen display size | 14 Inches |
B**R
Top of the line
I own several Gator products and they all are well built and well-finished. You do pay more, but I've always felt my equipment was well protected. The 2 rack bag is built solidly. The zippers on the flaps are large and high quality and the internal frame seems dimensionally stable and able to withstand a lot of punishment.The mounting frame is well-finished and tolerances and fit are tight. I've owned this bag for over two years and it has been subject to a lot of abuse as well as constant removal and changeout of rack components. It has held up exceptionally well both externally and internally. I almost feel I could stand on it and it would support my weight, even though I'd never try that! For "soft" bags, Gator seems to be the best in my experience. I never worry about my components being damaged, and isn't that what you buy a bag for? This bag is designed well and well-made!
M**P
Happy about this purchase
After reading a couple reviews of concern regarding inside depth, I measured my gear and took a chance. Gear consists of Furman SMP EVS-LiFT, ART 6 channel Head Amp Pro, PreSonus Studio 192, and Focusrite Scarlett OctoPre. I replaced the power cables of ART & Focusrite with short ones. For the Studio 192, I attached Velcro to the power pak and its neatly attached and out of the way. The pouch on the side is useful for storing the Furman power cable. Short patch cables rounds out the rig and I’m quite happy. No depth problem. Not enough time spent with this for road worthy review, but like anything, being mindful of gear will repay the user with long use. Some have complained of the shoulder strap... while I’d be tempted to use it, I probably won’t as all that equipment is heavy and the weight alone “could” create a physical issue for the user. I’m content with the handles provided. Other lighter gig bags for cables n such, along with laptop can go over the shoulders. Since I use a laptop with this rig the pouch is “sort of a bother” but nothing to furrow the brow over. Price I thought reasonable.
T**G
Another great case from Gator
This rack bag is very well built. It is much better constructed than the 25 year old Calzone case it is replacing, so I expect to not have to ever replace it. It is large enough to hold full-size boxes, in this case a 2U QSC power amp which is a bit more than 12" deep. Recessed rails in the front protect knobs. Rear panels are easily accessible and there are feet to protect the zippered rear flap. Lots of pockets and very nice rack screws & washers included. I am a professional bass player. I have found that hard, molded racks develop various buzzes over time, which is why I use a soft-covered rack bag. This Gator bag has even improved my tone, believe it or not, because (I think) it is so solid and well padded it doesn't resonate at all. I see that most of my soft cases are from Gator these days. Highly recommended.
E**C
Bag and rack are fine, screws and washers are too big to be used
Bag and rack portion are fine. Knocked one star because the included screws and washers are actually too wide and extend past the boundary of 1U so would overlap the screws and washers of the adjoining slot if you used them. Grab a different M5 screw and washer.
F**E
Sturdy and highly portable
This case houses my 2U amp/multi-effects unit, my 1U power conditioner, and the wireless system for my guitar. It is far easier to take this to a gig (with my lightweight 2x12 speaker cabinet), than carrying the 4U flight case I had before, which weighed twice as much fully loaded and was too heavy to load and unload. I can wear this case over my shoulder and still have two hands to carry my speaker and guitar or another bag. Time will tell as to its longevity, but I am careful with my gear, so given its solid construction, I'm expecting it to last many years.
J**.
Perfect to protect your gear
I was very tempted to give this a lower rating due to the fact all of the holes didn’t line up enough to hold 4 rack mounts. I had an amp that was a duel rack, an EQ that was a single and a FX board that was single. Both of the singles fit in just fine, but the duel did not line up with the second set of holes. Normally rack mounts space out the holes to hold a single or double, but this one didn’t. Since i needed it for a gig last weekend i didn’t have time to return it and get something else i drilled out a second set of holes and tapped them out for the size screws i needed. After tapping the new holes i found the old ones were almost 1/8 of an inch off being able to fit correctly. Is this product well made? Yes Is it worth buying? Yes Would i buy it again? If i didn’t need it to fit a duel rack mount i would.
L**I
Strong
Perfect size and durability
L**S
Quality rack bag without the bulk of a hard case
Quality rack bag without the bulk of a hard case.
E**R
If your looking for something light well than this case is for you. Im older and have a hard time hauling heavy even the molded cases get heavy when you add things in there, so thank you Gator for an awesome rack case.
L**C
Excelente muy practico y a buen precio y calidad
Y**A
After several months of use, the product has met my expectations 100%. I have two audio interfaces and a shure Wireless monitor transmitter mounted on it. Portability is quite good, although it is not so portable if you move by public transport. Ideal to take in the car.
C**L
K**L
Cleverly designed bag with 4U rails. Zips are durable and like all zips need to be treated with care. Have mounted my radio mic wireless receiver and echo effects units in it so far. Very pleased with this product and price is good too.
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