BEYMA 8P300Fe/N
BEYMA 8P300Fe/N — 8" / 8 inch · Woofer · Bass · Ferrite Magnet
300 W AES - 94 dB - 60 – 7000 Hz - 8 Ω
Part no.: 42A-CHS-TT-BEY-0037
Documents
BEYMA 8P300Fe/N — 8" · Woofer · Ferrite-Magnet
300 W AES · 94 dB Sensitivity · Frequency range 60 Hz – 7000 Hz
Technical data
- Diameter: 8 "
- Voice coil: 2.5 "
- Power handling: 300 W AES
- Sensitivity: 94 dB
- Impedance: 8 Ω
- Magnet: Ferrite
- Weight: 4 kg
- Mounting depth: 102 mm
- Frequency range: 60 – 7000 Hz
Series: P · Part no.: 42A-CHS-TT-BEY-0037
Beyma 8P300Fe/N: 8" mid-woofer with 94 dB, 300 W AES and a 2.5" voice coil
The Beyma 8P300Fe/N is an 8" mid-woofer from the P series with a ferrite magnet, 2.5" voice coil and 300 W AES. It covers 60 Hz to 7000 Hz, making it a typical candidate for compact 2-way tops with a compression driver, for stage monitors and for the midrange section in 3-way systems with a 12" or 15" bass. 94 dB sensitivity at 8 Ω ensures it level-matches horn systems.
The parameters: Fs 53 Hz, Qts 0.31, Qes 0.33, Vas 24.8 l, BL 13.5 Tm on 52 g of moving mass. That is a balanced set which, with an EBP of 161, points toward vented enclosures. Xmax 6 mm gives 132 cm³ of displacement, enough for the lower midband in a top but no subwoofer excursion. At 102 mm mounting depth and 4 kg the 8P300Fe/N stays cabinet-friendly.
Use and enclosure
For a vented box the guideline is 13 l with fb 64 Hz and f3 around 71 Hz. That yields a compact 2-way top which works cleanly with subwoofer support and, even without one, delivers enough lower midband for speech and monitoring. As a midrange in a 3-way box the driver belongs in a sealed midrange chamber; the guideline is 5.9 l with fc around 121 Hz, with the lower crossover then set well above 60 Hz. At the top you cross over below 7000 Hz, in practice where the 8" cone begins to beam and a compression driver on a horn takes over. Beyma horns and waveguides are listed in their own category at 42.audio.
The inductance of 1.2 mH is normal for an 8" driver with a 2.5" coil and can be accounted for in a passive crossover. With Re 6.1 Ω and 300 W AES a mid-power amplifier is the right match; a high-pass protects the 6 mm Xmax when the top runs without a subwoofer crossover. The enclosure calculator at 42.audio handles the exact cabinet design.
What to look out for
- 2.5" voice coil with 300 W AES: decent thermal reserve for continuous use.
- Xmax 6 mm: high-pass well above 60 Hz when no subwoofer is in the chain.
- Mounting depth 102 mm, 4 kg: fits compact tops and monitors.
- Le 1.2 mH: account for it in the crossover design when going passive.
- Re 6.1 Ω at 8 Ω nominal: two drivers in parallel present a 4 Ω load.
Frequently asked questions
How does the 8P300Fe/N differ from the B&C 8MBX51?
The 8MBX51 has a slightly higher resonance at similar total Q, with Fs 60 Hz, Qts 0.29 and Vas 23 l. The 8P300Fe/N starts marginally lower with Fs 53 Hz and Vas 24.8 l, which makes it a little better suited to tops that have to work without a subwoofer.
Which enclosure for a compact 2-way top?
Vented around 13 l with fb 64 Hz as a guideline, f3 then around 71 Hz. Add a 1" compression driver on a horn, crossing over below 7000 Hz where horn and 8" cone radiate similarly. Check the tuning in the enclosure calculator.
Is the 8P300Fe/N enough as a midrange in a 3-way system?
Yes, with 94 dB and 300 W AES it is robust enough for midrange duty next to a 15" bass. Sealed midrange chamber around 5.9 l as a guideline, lower crossover well above 60 Hz, and the 6 mm excursion stays far below its limit.
Beyma 8P300Fe/N: manufacturer, spellings and classification
Beyma and Acustica Beyma refer to the same manufacturer: Acústica Beyma S.L. of Moncada near Valencia, Spain. The 8P300Fe/N is a 8-inch woofer with ferrite magnet from the P series, available from 42.audio, Beyma dealer in Germany, with datasheet and full specifications in the driver database.
At 42.audio you get the BEYMA 8P300Fe/N with all key data in the driver database and the enclosure calculator. More drivers from this manufacturer: Atlas Beyma.
Thiele-Small parameters
| Nominal impedance | 8 Ω |
|---|---|
| Resonance frequency fs | 53 Hz |
| Total Q Qts | 0.31 |
| Electrical Q Qes | 0.33 |
| Mechanical Q Qms | 6.5 |
| Equivalent volume Vas | 24.8 l |
| Moving mass Mms | 52.0 g |
| Cone area Sd | 220 cm² |
| Linear excursion Xmax | 6 mm |
| Displaced volume Vd | 132 cm³ |
| Force factor BL | 13.5 Tm |
| DC resistance Re | 6.1 Ω |
| Voice coil inductance Le | 1.2 mH |
Enclosure suggestion
The EBP of 161 suggests a bass-reflex enclosure. EBP = fs / Qes = 53 / 0.33
Sealed (Qtc 0.707)
- Enclosure volume Vb
- 5.9 l
- System resonance Fc
- 121 Hz
- Cut-off frequency F3
- 121 Hz
Bass reflex (QB3 after Small)recommended
- Enclosure volume Vb
- 10.4 l
- Tuning frequency Fb
- 69 Hz
- Cut-off frequency F3
- 78 Hz
Vb is the required net internal volume, Fb the tuning frequency of the reflex port and F3 the frequency at which the level has dropped by 3 dB. Calculated approximation after Small. A starting point for simulation, not a finished build plan.
Comparable drivers
Same size, same type, Qts within ±30 %.
- B&C Speakers 8FG64fs 51 Hz · Qts 0.31 · Vas 15 l · in the database
- FaitalPRO 8RS250fs 56 Hz · Qts 0.32 · Vas 18.3 l · in the database
- B&C Speakers 8FG51fs 49 Hz · Qts 0.32 · Vas 20 l · in the database
- FaitalPRO 8RS350fs 42 Hz · Qts 0.3 · Vas 23.7 l · in the database
- B&C Speakers 8MBX51fs 60 Hz · Qts 0.29 · Vas 23 l · in the database
- PRV Audio 8MB700FTfs 72.3 Hz · Qts 0.31 · Vas 20 l · in the database
Specifications
| Allgemein | |
|---|---|
| Manufacturer | BEYMA |
| Category | Low Frequency |
| Series | P |
| Magnet | Ferrite |
| Impedance (Ω) | 8 |
| Power handling (W) | 300 |
| Sensitivity (dB) | 94 |
| Frequency from (Hz) | 60 |
| Frequency to (Hz) | 7000 |
| Abmessungen & Korb | |
|---|---|
| Diameter | 8 |
| Voice coil (inch) | 2.5 |
| Mounting depth (mm) | 102 |
| Weight (kg) | 4 |
| Thiele-Small-Parameter | |
|---|---|
| Re (Ω) | 6.1 |
| Le (mH) | 1.2 |
| Fs (Hz) | 53 |
| Qms | 6.5 |
| Qes | 0.33 |
| Qts | 0.31 |
| Vas (l) | 24.8 |
| Xmax (mm) | 6 |
| Vd (cm³) | 132 |
| BL (Tm) | 13.5 |
| Mms (kg) | 0.052 |
| Sd (m²) | 0.022 |