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The Dayton Audio MB1025-8 is a professional 25.4cm (10") low-midrange speaker designed for high-SPL speakers requiring impact, power handling and low distortion. Its power handling of 350 W RMS, reaching up to 700 W maximum, relies on a 6.35cm (2.5") voice coil and a 40 oz vented ferrite motor to maintain a high output level in two- or three-way configurations. Its sensitivity of 95 dB at 2.83 V/1 m makes it easy to pair with moderate-power amplifiers, while its usable frequency response of 60 to 5,500 Hz allows flexible connection with a tweeter, a compression driver or a dedicated bass section.
The lightweight damped paper cone, combined with a fabric surround and a treated spider, promotes clear and detailed reproduction while limiting resonances when the speaker is driven at high SPL levels. Its maximum linear excursion of 3 mm thus favors control and precision in the low-midrange register, while the venting of the pole piece helps dissipate heat from the voice coil during extended listening. With its 8 Ω impedance, this architecture is suited to professional speakers and studio monitors as well as domestic hi-fi systems, in-vehicle audio installations and instrument amplifiers, notably for electric bass or keyboard.

Technical specifications
| Specifications | |
|---|---|
| Product type | Low midrange speaker |
| Impedance | 8Ω |
| Sensitivity | 95dB 2.83V/1m |
| Frequency response | 60Hz-5.5kHz |
| Voice coil diameter | 6.35cm (2.5") |
| Nominal diameter | 25.4cm (10") |
| Power | RMS: 350W MAX: 700W |
| Thiele-Small parameters | |
|---|---|
| Resonance frequency (Fs) | 45Hz |
| Cone surface area (Sd) | 342.5cm² |
| Voice coil inductance (Le) | 1.2mH |
| DC resistance (Re) | 5.3Ω |
| Mechanical quality coefficient (Qms) | 6.47 |
| Electromagnetic quality coefficient (Qes) | 0.36 |
| Total quality coefficient (Qts) | 0.34 |
| Force factor (BL) | 13.1T·m |
| Total moving mass + air load on cone (Mms) | 41.1g |
| Mechanical compliance of suspension (Cms) | 0.3mm/N |
| Compliance equivalent volume (Vas) | 1.79ft³ |
| Max linear excursion (Xmax) | 3mm |
| Mounting informations | |
|---|---|
| Cutout diameter | 23.21cm (9.14") |
| Depth | 10.8cm (4.25") |
| Number of mounting holes | 8 |
| Total external diameter | 25.4cm (10") |
| Materials | |
|---|---|
| Membrane | Paper |
| Magnet | Ferrite |
| Frame | Steel |
| Surround | Fabric |
| Voice coil wire | CCA |
| General | |
|---|---|
| Weight | 6.3kg |
| Package | Sold individually |
| Speaker Power (W RMS) | 350.0 |
| Speaker Type | Midbass |
| Impedance (Ω) | 8 |
| Loudspeaker diameter (mm) | 254.0 |
| Diaphragm type | Paper |
| Efficiency / Sensitivity (dB) | 95.0 |
| Max Linear Excursion (Xmax) (mm) | 3.0 |
| Lowest frequency (Hz) | 60 |
| Highest frequency (Hz) | 5500 |