Peerless HDS 830869 7 Inch
Best box: 15.6 L bass reflex tuned to 39.7 Hz · F3 42.7 Hz
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Comparable 7.0" Drivers
Drivers with similar piston area, resonance and Qts — useful alternatives when the Peerless HDS 830869 7 Inch does not fit your target box volume or tuning. Each entry links to its full enclosure design and Thiele/Small parameters.
Recommended Bass Reflex (Vented)
PORT BUILDABLE| Net Box Volume (Vb) | 15.6 Liters |
| Tuning Frequency (Fb) | 39.7 Hz |
| F3 (-3 dB Cutoff) | 42.7 Hz |
| F6 / F10 Extension | 36.8 Hz / 31.8 Hz |
| Port Inner Diameter | Ø 5.0 cm |
| Port Physical Length | 20.4 cm |
| First Pipe Resonance | 845.0 Hz |
| Estimated MOL @ F3 | 105.1 dB SPL |
Recommended Sealed (Acoustic Suspension)
MAX TRANSIENT DAMPING| Net Box Volume (Vb) | 7.2 Liters |
| System Q (Qtc) | 0.707 (Butterworth) |
| System Resonance (Fc) | 73.9 Hz |
| F3 (-3 dB Cutoff) | 75.5 Hz |
| F6 / F10 Extension | 56.9 Hz / 42.9 Hz |
| Air Spring Linearity | High (Zero port compression) |
Thiele/Small Parameters
| Resonance (Fs) | 32.0 Hz |
| Total Q (Qts) | 0.3 |
| Electrical Q (Qes) | 0.353 |
| Mechanical Q (Qms) | 2.0 |
| Equivalent Volume (Vas) | 33.0 Liters |
| Diaphragm Area (Sd) | 143.0 cm² |
| DC Resistance (Re) | 8.0 Ω |
| Efficiency Bandwidth Product (EBP) | 90.7 |
| Linear Excursion (Xmax) | 7.0 mm |
| Thermal Power (Pe) | 150.0 W |
| Nominal Diameter | 7.0" |
| Catalog Source | Load Forge catalog (manufacturer datasheets and retailer listings) |
Frequently Asked Questions
What is the recommended ported (bass reflex) box volume for Peerless HDS 830869 7 Inch?
Load Forge's calculated alignment puts Peerless HDS 830869 7 Inch in a 15.6 liter vented enclosure tuned to 39.7 Hz, reaching an F3 cutoff of approximately 42.7 Hz.
Can Peerless HDS 830869 7 Inch be used in a sealed box?
Yes. In a sealed (acoustic suspension) enclosure of 7.2 liters with a Qtc of 0.707 (Butterworth), the system exhibits an F3 of 75.5 Hz.
What port dimensions should be used for Peerless HDS 830869 7 Inch to avoid port chuffing?
Sized from cone displacement (Sd × Xmax), a minimum port diameter of 5.0 cm with a length of 20.4 cm is suggested; check the port air velocity at your drive level in the Load Forge Studio.
Shareable Acoustic Card for Forums & Social Media
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