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AS05708PR-2-R Equivalent & Substitute Parts
Part Overview
The AS05708PR-2-R is an 8 Ohm general purpose speaker manufactured by PUI Audio, Inc., rated at 1 W with a top-mounted round port configuration. This speaker operates across a frequency range of 350 Hz to 8 kHz and delivers 88 dBA sound pressure level at 1W/500mm. The product is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Impedance | 8 Ohms |
| Rated Power | 1 W |
| Maximum Power | 1.5 W |
| Frequency Range | 350 Hz ~ 8 kHz |
| Efficiency (SPL) | 88 dBA @ 1W/500mm |
| Port Location | Top |
| Shape | Round |
| Diameter | 2.244" (57.00mm) |
| Height (Seated Max) | 0.512" (13.00mm) |
| Termination | Solder Eyelet(s) |
| Material - Cone | Paper |
| Material - Magnet | Ferrite |
Substitute Part Grouping Explanation
Substitution of the AS05708PR-2-R is determined by the following critical parameters:
- Impedance Match: 8 Ohms (electrical compatibility requirement)
- Physical Compatibility: Round shape, 57.00mm diameter, top port location
- Power Rating Compatibility: Rated power between 500 mW and 1.5 W (operational envelope overlap)
- Frequency Response Overlap: Minimum frequency range compatibility within system bandwidth requirements
- Termination Type: Solder connection capability
The PSR-57N08A01-AQ meets these substitution criteria through matching impedance, identical physical dimensions, compatible power ratings, and solder termination capability.
Parameter Comparison
| Parameter | AS05708PR-2-R (Main) | PSR-57N08A01-AQ (Substitute) |
|---|---|---|
| Manufacturer | PUI Audio, Inc. | Mallory Sonalert Products Inc. |
| Product Status | Obsolete | Active |
| Impedance | 8 Ohms | 8 Ohms |
| Rated Power | 1 W | 500 mW |
| Maximum Power | 1.5 W | 1 W |
| Frequency Range | 350 Hz ~ 8 kHz | 600 Hz ~ 4 kHz |
| Efficiency (SPL) | 88 dBA @ 1W/500mm | 92 dBA @ 1W/1M |
| Port Location | Top | Top |
| Shape | Round | Round |
| Diameter | 2.244" (57.00mm) | 2.244" (57.00mm) |
| Height (Seated Max) | 0.512" (13.00mm) | 0.331" (8.40mm) |
| Termination | Solder Eyelet(s) | Solder Pads |
| Material - Cone | Paper | Polyester, PET |
| Material - Magnet | Ferrite | Nd-Fe-B |
| RoHS Status | Not specified | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
The PSR-57N08A01-AQ is an active product with current manufacturing support and ROHS3 compliance, providing supply chain continuity for the obsolete AS05708PR-2-R. Both components share identical impedance and physical mounting dimensions, enabling direct mechanical and electrical substitution in most applications.
The PSR-57N08A01-AQ operates at a lower rated power (500 mW versus 1 W) and narrower frequency range (600 Hz ~ 4 kHz versus 350 Hz ~ 8 kHz). Applications requiring the full frequency response or maximum power rating of the original part must evaluate whether the substitute's operational envelope meets system requirements.
The substitute features a lower seated height (8.40mm versus 13.00mm), which may provide design flexibility in space-constrained applications. Termination differs from eyelet to solder pad configuration, requiring PCB layout adjustment.
Frequently Asked Questions (FAQ)
Q: Can the PSR-57N08A01-AQ directly replace the AS05708PR-2-R in existing designs?
A: Electrical substitution is possible due to matching 8 Ohm impedance and compatible power ratings. Mechanical substitution requires verification of PCB layout compatibility, as termination changes from solder eyelets to solder pads and seated height differs by 4.6mm.
Q: What are the frequency response implications of substitution?
A: The substitute operates across 600 Hz ~ 4 kHz versus the original 350 Hz ~ 8 kHz. Applications requiring response below 600 Hz or above 4 kHz must evaluate whether system performance remains acceptable within the substitute's bandwidth.
Q: How do power ratings affect substitution suitability?
A: The substitute is rated at 500 mW continuous versus 1 W for the original part. Both components share a 1 W maximum power overlap. Applications operating continuously above 500 mW must remain within the 1 W maximum specification of the substitute.
Q: Are there compliance differences between these components?
A: The PSR-57N08A01-AQ carries ROHS3 compliance certification. Both components maintain REACH Unaffected status. New designs should prioritize the substitute for regulatory compliance alignment.
Q: What termination changes are required for substitution?
A: The original part uses solder eyelets while the substitute uses solder pads. PCB design modifications are necessary to accommodate the different termination footprint.
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