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Item#: N82E16811129086CVF

Antec Sonata Proto Black 0.8mm cold rolled steel ATX Mid Tower Computer Case


  • 0.8mm cold rolled steel ATX Mid Tower
  • 2 x USB 3.0 Audio In and Out (AC'97 and HDA compatible) Front Ports
  • 3 External 5.25" Drive Bays
  • 4 Internal 3.5" Drive Bays
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Customer Reviews of the Antec Sonata Proto

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  • Tarmack
  • 3/17/2015 2:09:25 AM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggsQuiet, Well Built, Nice Drive Rails and Door

Pros: A very classy looking case - nice USB 3.0 update to the Sonata III (which I also have). The best 3.5" internal drive trays I've ever used - they mount 3.5" drives from the bottom (so be aware for 2.5" adapters). Great door (which I need this to keep little fingers out). I like the old style top mount PSU. With a little work, cable management is actually quite good with room above the PSU and top 5.25" bay and room behind the 3.5" drive bays.

Cons: The only real problem I've had with these cases is the new motherboards that have "90 degree" SATA ports that come off the back edge of the board - this case has two cutouts that line up with the MB and allow SATA cables to pass behind the 3.5" drive bays (perfect) but some full size MBs don't line up with those slots and some SATA ports become unusable. One more cutout at the bottom would be very welcome.

Other Thoughts: This is a "quiet" case - if you need "super cooling" get a case w/ multiple front 120mm fans and a big top exhaust (my Antec Three Hundred gets the job done but is MUCH louder). For a non-gamer build this is the perfect balance between cooling and quiet - I love the "internal" 120mm fan that draws air across the drives and blows directly on the RAM, MB heatsink, and graphics card without being noisy on the front of the case - all the noise it out the rear.

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  • Dwight
  • 11/11/2014 11:50:30 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsSimple and Effective

This is an excellent simple case. I was able to keep wires tucked out of the way on the two units I built with this case model despite not having a modular power supply.

The drive bays are accessed from the side rather than front-to-back which allows you to remove them without interfering with motherboard components such as installed video cards, SATA ports, and motherboard power cables being the most common in my experience.

Additionally, the hard drives have a vibration-absorbing rubber that separates them from the removable hardware.

These cases come with plenty of extra posts for various motherboard sizes, screws for components, and the special screws required to mount your hard drives to the bays.

Cons: Only one side panel can be removed. I would have preferred to be able to access cable-routing areas by removing both panels. (And the likely uncommon desire to manage hard drive cables without removing the entire hard drive unless it was possible to install the hard drives backward, but it didn't look like the cables would fit that way.)

Other Thoughts: Power button is behind the lockable front panel which is inconvenient for users that like to power off their machines frequently. I didn't notice when I ordered it because I was focused on the interior layout. On the upside you (or your pets) are unlikely to accidentally power off the PC.

You'll need a right-angle SATA cable to connect hard drives in their case slots due to the width constraints.

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  • N/A
  • 11/3/2014 5:42:39 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsFantastic Case

Pros: This case is simply fantastic. It includes a ton of screws and standoffs, has great build quality, rubber HDD mounts to absorb vibration, and includes a 120mm fan preinstalled at the rear outtake. The fan isn't amazing, but reasonably quiet on the low speed setting.

Cons: While it's an amazing case for most builds, for higher-end builds this wouldn't be ideal. Being a "quiet" case, it's pretty lacking in airflow options -- only a front intake and rear outtake. Also, the motherboard tray is not removable, and there isn't much for cable management.

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  • Professor Mopar
  • 6/17/2014 8:46:15 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsEggcellent Case, but...

Pros: There is absolutely nothing that I do not like about the case, with one minor note. The build quality is second to none. The drive trays are amazing.

This is an "adult" case without all the flashing lights that scream 12-year old.

Cons: This case has limited cooling. Stock there is only a single 120mm fan at the rear, and an internal (useless) mount for a second 120mm fan. To achieve somewhat adequate cooling, I replaced the Antec 120mm fan, with a much thicker (38mm vs 25mm), higher flow fan. This helped. Ultimately, I had to modify the case to achieve the desired results.

Other Thoughts: First off, I am not a gamer, but use my computer for intensive graphic and video editing. Thus, the cooling requirements can be high due to the necessary hardware. To make the case flow properly, I cut a 120mm fan opening in the top, and also a 120mm fan opening on the door. In addition, I directly ventilated the CPU (no provision for liquid cooling) with a snorkel from another case, 92mm fan, and opening in door to mount such.

The result: Even under heavy use (all 8 cores, overclocked to 3.9ghz at 100% use) running for hours encoding video, interior case temperatures rose 3c above ambient, while CPU temperature rose to only 48c. Once task was complete, interior temperature was within 2c above ambient, and CPU temp 1c higher than interior.

1 out of 1 people found this review helpful. Did you? Yes No

  • N/A
  • 2/22/2013 9:05:39 AM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

4 out of 5 eggsOk

Pros: Good for office case. Most others are full of buzzing twirling LED light shows with clear windows. Who likes that stuff anyway?

Cons: Like this whole line of Antec cases the 5.25" blanks are not held in well enough. How hard is it to fix? The front USB 3.0 harness to motherboard is practically nonexistent and do not provide any adapters. I'm going to have to manually make jumpers after finding the pinouts. What a pain! These are real problems for a premium case. I still continue to buy these, but the USB problem needs to be resolved asap -like send an adapter or do not mold those harnesses on.

Other Thoughts: Other reviewer claimed HD sleds smash cables. Try mounting the hard drive the other way, buddy.

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  • NE fan
  • 12/17/2012 9:45:31 AM
  • Tech Level: High
  • Ownership: more than 1 year

4 out of 5 eggsAntec, please read other thoughts

Pros: Lots of places to hide cables. Big plus.
Slide in drive bays. 3.5” are nicely designed.

Installed a Sapphire HD 7950. Barely fit.

3.5” slide in bays! Silicone rubber grommets are **Highly Effective**, especially the Antec ones. If you have never used them [esp in a multi drive] install, then you will be very happy with the reduction in noise levels. Nearly gone is the head access vibration, a very welcome change [RAID 10].

Power supply is on the top.

Decent airflow with one big video card [HD 7950]. I selectivity use slot covers to tuning airflow, especially with a semi-vented video card.

Cons: Horizontal brace is riveted in place. Swapping the power supply with a larger/taller CPU cooler inplace will most likely require removing the motherboard. Nor you can install the power supply last if there is a tall CPU cooler. The brace ought to be removable in the event the power supply fails or you need to upgrade.

Brace removed all is good. Repairability outweighed its utility.

Door. Low utility.

The 3.5” drive bays. Move down 2cm and improve airflow over the top of the top drive. A taller case taller would mitigate the problem with the brace, top 3.5” airflow and the unacceptable airflow for the bottom PCI-E video card [see below].

Not an SLI case. A bottom 2x wide video card air flow is compromised to an extreme degree. The lowest slot is about 1cm from the bottom of the case and placing a card in the lowest SLI/Crossfire slot is a very bad idea.

Other Thoughts: If you use more than one of the 5.25 bays you will have cabling problems. Mitigated by having a modular power supply. Hiding excess cabling in the unused 5.25 bays is the way to go.

SSDs mount in the either of the front 3.5” slide-out drive bay. Why would *anyone* put the SSD at the bottom?

One video card
One sound card
One DVD burner
Modular power supply with flat cables [read pcpower modstream III]
RAID 10 7200RPM drives

It is really difficult to find a case that combines features that work really well. Many large cases force you tol struggle to install a modern 3D card.

Antec. Please continue building cases with silicone rubber drive mounts and the slide out drive bays.

Antec. Please build cases a few centimeters deeper to accommodate today's oversized video cards.

Antec. Please build cases to accommodate easy removal and replacement of the power supplies.

4 out of 4 people found this review helpful. Did you? Yes No

  • N/A
  • 12/4/2012 2:13:34 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

3 out of 5 eggsdrive mounts were hard to figure out

Pros: Overall great looking case

Cons: The system of mounting the harddrves to the little clear rubber mounts was difficult to figure out without ANY instructions. I kept trying to mount the drive to the rails provided that are attached to the back of the cd drive covers and then slide into the HDD rails....

1 out of 2 people found this review helpful. Did you? Yes No

  • N/A
  • 11/5/2012 5:54:56 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

3 out of 5 eggsGood I thought

Pros: Very nice looking case. I chose this case as a Home Theater PC build for my cousin for it's clean appearance . Also the locked door keeps little fingers from pushing buttons.

Cons: The right side panel (bottom of Motherboard side) does not remove. This makes routing SATA and HD power cables troublesome . Siding a drive into position puts pressure on the cables with no easy way to relieve it once you have more than one drive installed,you could easily compromise the connection of another drive. The screws to mount the drives to the sleds are proprietary so you better not loose track of your extras.
Only one place is provided for mounting a SSD that is on the very bottom of the case , with the before mentioned cable routing problem that was out of the question. A slight Mod mounted the SSD in the 3.5 external bay with the blanks in place.
and the 5.25 blank covers to not fit tight they are a very sloppy fit but with the door locked no biggie .

Other Thoughts: This case would have gotten at lease one more egg if both side panels were removable.
This build consists of :

AMD A10-5800K CPU
ASUS F2A85-V PRO FM2 AMD A85X Motherboard
SeaSonic M12II 620 Bronze 620W ATX12V V2.3 power supply
Corsair Force Series GT CSSD-F120GBGT-BK SSD
CORSAIR XMS3 4GB (2 x 2GB)DDR3 1600 (PC3 12800) RAM
2 - Seagate Barracuda Green ST2000DL003 2TB 5900 RPM

Manufacturer Response:


The unit you received may have a defect but we'd like to hear from you. Please email us at and we'll work with you to rectify the situation. Thank you.

Antec Customer Support

1 out of 1 people found this review helpful. Did you? Yes No

  • Deemo13
  • 8/20/2012 5:39:47 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week

4 out of 5 eggsGood case overall

Pros: -Very attractive design
-Love the door and the design used for the 5.25 bays
-Cool 3.5" bay mounting brackets
-Quality is unparalleled
-USB 3.0 on the front
-The locks are super cool
-Very quiet
-Good price

Cons: -Hard to cable manage if you arent good at it
-Not that great airflow
-Back panel is not removable
-No USB 3.0 to 2.0 connector

Other Thoughts: I mounted a H60 radiator on the back of my case and it fit fine. There is only one fan in the case though, and that limits airflow bigtime. That's one egg

Also, the cable management is very hard, but if done correctly, one can achieve a very very clean looking interior of the comptuer.

Also, the case did not come with a USB 3.0 to 2.0, rendering the front ports useless, but I will not dock an egg for this. I ordered one on the Corsair website.

2 out of 2 people found this review helpful. Did you? Yes No

  • mr bigg
  • 8/19/2012 4:01:58 PM
  • Tech Level: Average
  • Ownership: more than 1 year

3 out of 5 eggswow

Pros: hdd rack is nice/ quiet

Cons: door must open to turn on/ door cheap made/ no places for fans / even with one fan still somewhat noisey/ case on the small side /no cable mgt./ i cut a hole in door for switch/ way to cramped inside/ bad cooling for my taste !

Other Thoughts: good for non overclocking computer use/ i have one i'm donating to charity/ all the other cases i have are much better TT/ LianLi / Aero Cool /Ikonic/Inwin/CoolerMaster .

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