5 out of 5
Pricing Note
Product Description
Manufacturer Part Number: RSRMO-8
We've produced a 15" driver that features the same warm, thundering sound characteristics as the original, but thanks to contemporary materials and technology will last far longer.
Key Features:
Overview:
Replacement Woofer for 15" Realistic Mach One 8 Ohm
Radio Shack produced the Realistic Mach One speaker for almost ten years, beginning in the 1970s. The Mach One 15" 3-way system is considered one of the finest loudspeakers offered by Radio Shack. Over time, many Mach Ones have been lost due to foam rot and old age. We've produced a 15" driver that features the same warm, thundering sound characteristics as the original, but thanks to contemporary materials and technology will last far longer. Now you can resurrect your set of Realistic Mach One speakers with completely new woofers, giving them a fresh lease on life! Replaces Realistic Mach One, Mach Two, 3802, 40-4029, 40-4032, 40-4032A, Optimus Pro 4000. Note: This unit is an exact replica of the Mach One. The Mach Two is slightly different, but this unit works great for them too!
Specification:
Manuals & Resources:
We've produced a 15" driver that features the same warm, thundering sound characteristics as the original, but thanks to contemporary materials and technology will last far longer.
Key Features:
- Modern reproduction of the famous Mach One design
- Resurrect your Mach One speakers from the Seventies!
- Same voicing but up-to-date materials and technology
- 2-1/4" copper voice coil on brass former
- Replaces the 4024 8 ohm version (1976-1981)
- Great results in custom acoustic suspension designs, too!
Overview:
Replacement Woofer for 15" Realistic Mach One 8 Ohm
Radio Shack produced the Realistic Mach One speaker for almost ten years, beginning in the 1970s. The Mach One 15" 3-way system is considered one of the finest loudspeakers offered by Radio Shack. Over time, many Mach Ones have been lost due to foam rot and old age. We've produced a 15" driver that features the same warm, thundering sound characteristics as the original, but thanks to contemporary materials and technology will last far longer. Now you can resurrect your set of Realistic Mach One speakers with completely new woofers, giving them a fresh lease on life! Replaces Realistic Mach One, Mach Two, 3802, 40-4029, 40-4032, 40-4032A, Optimus Pro 4000. Note: This unit is an exact replica of the Mach One. The Mach Two is slightly different, but this unit works great for them too!
Specification:
Product Details | |
|---|---|
| Brand | GRS |
| Model | RSRMO-8 |
| Part Number | 290-184 |
| UPC | 844632083310 |
| Unit of Measure | Each |
| Weight | 12.1 |
Product Specifications | |
|---|---|
| Nominal Diameter | 15" |
| Power Handling (RMS) | 125 Watts |
| Power Handling (MAX) | 250 Watts |
| Impedance | 8Ω |
| Frequency Response | 22 to 1,200Hz |
| Sensitivity | 90.7dB 2.83V/1m |
| Voice Coil Diameter | 2.25" |
Thiele-Small Parameters | |
|---|---|
| Resonant Frequency (Fs) | 27.6Hz |
| DC Resistance (Re) | 7.2Ω |
| Voice Coil Inductance (Le) | 2.6mH |
| Mechanical Q (Qms) | 5.34 |
| Electromagnetic Q (Qes) | 0.83 |
| Total Q (Qts) | 0.72 |
| Compliance Equivalent Volume (Vas) | 9.4ft³ |
| Mechanical Compliance of Suspension (Cms) | 0.31mm/N |
| BL Product (BL) | 12.65T·m |
| Maximum Linear Excursion (Xmax) | 2.25mm |
Materials of Construction | |
|---|---|
| Cone Material | Paper |
| Surround Material | Foam |
| Voice Coil Wire Material | Copper |
| Voice Coil Former | Brass |
| Basket / Frame Material | Steel |
| Magnet Material | Ferrite |
Mounting Information | |
|---|---|
| Overall Outside Diameter | 15.25" |
| Baffle Cutout Diameter | 13.75" |
| Depth | 6.25" |
| # Mounting Holes | 6 |
Parts Express Staff Recommended Enclosure Volume | |
|---|---|
| Sealed Volume | 3ft³ |
| Sealed F3 | 38.9Hz |
| Vented Volume | 4.5ft³ |
| Vented F3 | 31.9Hz |
Manuals & Resources:
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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Our staff are available to answer any questions you may have about this item
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Customer Reviews
By A Customer
Date: January 17, 2025
Not what I expected for sure.
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By Scott F.
Date: November 03, 2023
Had to cut the amp wire as it would not slide on but with banana plug it worked. Very happy.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Clarence
Date: October 30, 2023
So far the products working, sounds real good in the new speaker, case looking at buying some more
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Victoria S.
Date: October 26, 2022
Great sound. Would definitely recommend.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Kirt
Date: July 26, 2022
Bought it to replace a 30 year old Vega in a tower and it was a great choice. I didn't want to break the bank so I took a chance on this one based on the good reviews. I am happy I did it sounds great thus far.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By peteweb
Date: November 11, 2020
these fit perfectly in my CW DX9 boxes and sound terrific... are they Cerwin Vegas?, No, but for my garage, they work great!
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
Items 1 - 6 of 6 reviews
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