8FIND 8FIND 8FIND
LF Mid-Woofer 8"

8FIND

Code: DR-8-023-8R-B2-C0001

Woofer/8inch/Ferrite/Paper/200W/8ohm

Key Features

  • EXTENDED FREQUENCY RESPONSE, high efficiency
  • Carbon fiber loaded and reinforced paper cone
  • Nomex spider

Quick Specs

Impedance

8 Ω

Program Power

400 W

Sensitivity

97.33 dB

Fs

70.00 Hz

Magnet

Ferrite

Voice Coil

50.8 mm

Design Notes

The 8FIND is a high efficiency, (97 dB 1watt / 1 meter) 8-inch mid bass woofer with incredibly linear frequency response characteristics, high power handling capability while generating low harmonic distortion artifacts.
The 8FIND uses a lightweight carbon fiber loaded cone assembly along with a precision double roll surround. This combination provides remarkable strength, high efficiency and a excursion linearity of 9.4mm.

Magnetic Circuit
REDCATT engineers have developed an efficient, ferrite based magnetic circuit, capable of delivering the highest level of performance providing a consistent, high integrity magnetic flux gap, low distortion characteristic. The magnetic circuit design is optimized to generate the minimum amount of flux modulation, providing exceptional stability.

Specifications

General Specs

Nominal Diameter 8"
Rated Impedance 8 Ohm
Magnet Ferrite
Basket Material Aluminum

Power Handling

AES Power 200 W
Continuous Power 400 W
Peak Power 800 W

Voice Coil

Diameter 50.8 mm
Winding Wire CCAW
Former Glass Fiber
Winding Height 12.4 mm

T/S Parameters

Resonant Frequency (Fs) 70.00 Hz
Re 5.70 \u2126
Qes 0.250
Qms 6.40
Qts 0.250
Vas 18.20 liters
Sd 227.00 cm\u00B2
Mms 20.70 grams
Rms 1.42
Cms 0.2500
Bl 14.30 T\u00B7m
Le 0.480 mH
Sensitivity 97.33 dB

Design Details

Surround Material fabric
Cone/Dome Material Paper GF
Spider Nomex
T-Plate 8 mm
Xmax (peak) 2.2 mm
Xmech 10.2 mm
Overall Diameter 209.50 mm
Bolt Circle Diameter 197.50 mm
Baffle Cutout Dia. 185.00 mm
Mounting Holes 8
Depth (flange to rear) 91.50 mm
Net Weight 3.73 kg

Ordering Codes

Product Code DR-8-023-8R-B2-C0001

Frequency Response & Impedance

Frequency response of 8FIND

2D Drawing

2D drawing of 8FIND

Technical Summary

The 8FINDX8-030 is an 8-inch high-efficiency ferrite mid-woofer designed for professional two-way, multi-way, and installation loudspeaker systems where maximum sensitivity and controlled low-distortion performance are required. With a sensitivity of 97 dB (1W/1m), a 2-inch CCAW voice coil on a glass fiber former, and a lightweight carbon fiber loaded paper cone with a precision double roll fabric surround, the driver achieves a very low Qts of 0.25. The motor and suspension are optimized to maintain consistent performance at high drive levels, with controlled excursion and reduced thermal compression during long-term operation.

The driver is rated for approximately 200 W AES / 400 W continuous power handling and is intended for use with DSP-controlled amplification. A high-pass filter in the range of 41-56 Hz (24 dB/octave Linkwitz-Riley) is recommended depending on enclosure tuning, with a typical crossover to a high-frequency driver at 1.5-3 kHz. Below tuning frequency, excursion increases and high-pass protection is required to manage mechanical stress, particularly given the modest linear excursion capability. The driver's extreme sensitivity means high SPL is achievable with moderate amplifier power.

This driver is particularly effective in high-efficiency 2-way portable loudspeakers, compact PA tops, stage monitors, and installation systems where maximum sensitivity, extended frequency response, and low distortion are priorities. The carbon fiber loaded paper cone, flux-modulation-optimized ferrite motor, and aluminum basket provide consistent, durable performance in demanding professional environments.

Recommended enclosure volumes are simulated results. For best enclosure volumes and tuning, we recommend secondary simulation and careful evaluation. Several rounds of samples and fine-tuning may be required for optimal results.

Enclosure Recommendations

Recommended enclosure alignments (bass reflex):
- 22 liters tuned to 66 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 56 Hz, HP filter 58 Hz
- 24 liters tuned to 58 Hz: balanced response, general-purpose (recommended); -3 dB approx. 49 Hz, HP filter 48 Hz
- 24 liters tuned to 55 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 47 Hz, HP filter 43 Hz

Frequently Asked Questions

  • - EXTENDED FREQUENCY RESPONSE, high efficiency
  • - Carbon fiber loaded and reinforced paper cone
  • - Nomex spider
Recommended enclosure alignments (bass reflex):
- 22 liters tuned to 66 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 56 Hz, HP filter 58 Hz
- 24 liters tuned to 58 Hz: balanced response, general-purpose (recommended); -3 dB approx. 49 Hz, HP filter 48 Hz
- 24 liters tuned to 55 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 47 Hz, HP filter 43 Hz
High-efficiency vented pa mid-woofer or bass-mid cabinet
AES Power: 200 W, Continuous: 400 W, Peak: 800 W. Sensitivity: 97.33 dB (1W/1m).

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