Cool. Atmos builds are under represented so always interesting. Are you going to do a passive filter with them or just let the avr sort it out?
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DIY Atmos Experimental Project: PRV AUDIO 8MR500-4 BULLET
First let me preface this thread by informing everyone, this will not be a purist audiophile build. If you’re a purist and or Audiophile, this is not the thread for you.
So, in the name of DIY, I will proceed. Currently, I’m using two sets of Dayton Audio B-652 Air speakers as my front and back atmos. A tweeter has blown on the top left speaker, been that way for some time now, and I’ve finally decided to address it. I have 2 extra B-652 speakers available as a replacement, but I’ve chosen to build a speaker that will keep up with the rest of the system. At least that’s the idea anyway. I really like Javs' DIY Dolby Atmos MKII Modules, but $40 per driver, multiplied by 16, is not what I have in mind budget wise for this build. I decided on a more budget friendly approach and ended up purchasing two PRV AUDIO 8MR500-4 BULLET drivers. At $56, it makes for budget friendly build. It’s not the perfect driver by any stretch, but for some reason I’m intrigued the driver. At present time, I’m undecided on an enclosure, but I’m leaning towards sealed.
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GENERAL SPECIFICATIONS
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THIELE-SMALL PARAMETERS
***Xmax=(Voice coil winding depth-Magnetic Gap depth)/2+ Mgnetic Gap Depth/4
So, in the name of DIY, I will proceed. Currently, I’m using two sets of Dayton Audio B-652 Air speakers as my front and back atmos. A tweeter has blown on the top left speaker, been that way for some time now, and I’ve finally decided to address it. I have 2 extra B-652 speakers available as a replacement, but I’ve chosen to build a speaker that will keep up with the rest of the system. At least that’s the idea anyway. I really like Javs' DIY Dolby Atmos MKII Modules, but $40 per driver, multiplied by 16, is not what I have in mind budget wise for this build. I decided on a more budget friendly approach and ended up purchasing two PRV AUDIO 8MR500-4 BULLET drivers. At $56, it makes for budget friendly build. It’s not the perfect driver by any stretch, but for some reason I’m intrigued the driver. At present time, I’m undecided on an enclosure, but I’m leaning towards sealed.
GENERAL SPECIFICATIONS
| Nominal Diameter | 8″ (203 mm) |
| Nominal impedance | 4 Ohms |
| Rated AES Power Handling (RMS) | 250 Watts |
| Program Power | 500 Watts |
| Sensitivity 2.83V at 1m | 95 dB |
| Recommended Hi Pass Crossover** **For Full Power Handling | 125 Hz** **12db Per Octave Crossover |
| Frequency Response at -10dB | 95 – 20,000 Hz |
| Voice Coil Diameter | 1.5″ (38 mm) |
| Voice Coil Wire | CCAW |
| Voice Coil Winding Depth | 9.5 mm |
| Former Material | Kapton |
| Magnetic Gap Depth | 6.0 mm |
| Frame Material | Stamped Steel |
THIELE-SMALL PARAMETERS
| Equivalent Volume | Vas | 20.8 l |
| Excursion (mathematical)*** | Xmax | 3.25 mm |
| Free Air Resonance | Fs | 78.2 Hz |
| Mechanical Factor | Qms | 20.80 |
| Electrical Factor | Qes | 0.48 |
| Total Factor | Qts | 0.46 |
| Cone Area | Sd | 241 cm² |
| Mechanical Mass | Mms | 11.5 g |
| Bl Factor | Bl | 6.45 Tm |
| Dc Resistance | Re | 3.5 Ohms |
| Inductance | Le | 0.132 mH at 1 kHz |
| Mechanical Mass Without Air | Mmd | 9.39 g |
| Mechanical Compliance | Cms | 0.360 mm/N |
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Where did you hear this? The latest change with the new beta firmware is added support for 3D audio from TV speakers (i.e. still stereo) only.Watching this. PS5 just added 3D audio support for home theater systems and now I feel like Atmos will finally be worth it...
Before I decided to purchased the PRV AUDIO 8MR500-4 BULLET, I took a long look at the Timpano TPT-MR8-4 BULLET. Although the PVR is only $56, the Timpano is even cheaper at $36.95. Talk about budget friendly Ultimately, I couldn't get past the published Frequency range of 125 – 9,500 Hz of the Timpano Also, the PRV has more technical data published on it's driver
Ultimately, I couldn't get past the published Frequency range of 125 – 9,500 Hz of the Timpano Also, the PRV has more technical data published on it's driver
So I ordered my speakers at the same time, as a set, yet Amazon shows one speaker "out for delivery" and the other "On the Way"
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