61FIND 61FIND
LF Mid-Woofer 6.5"

61FIND

Code: 61FINDX16-332A

Mid-Woofer/6.5inch/Ferrite/Paper/150W/16ohm

Key Features

  • EXTENDED FREQUENCY RESPONSE
  • Lightweight, yet strong paper cone. Weather sealed, fire-retardant materials
  • Affordable design

Quick Specs

Impedance

16 Ω

Program Power

300 W

Sensitivity

92.00 dB

Fs

130.00 Hz

Magnet

Ferrite

Voice Coil

50.8 mm

Design Notes

61FIND continues our series of affordable ferrite mid-woofers. The driver was designed with ferrite magnetic circuit, combined with lightweight, yet strong, paper cone and fabric surround. In the heart of the 61FIND is 2” CCAW high temperature wire wound on TIL former. This combination provides remarkable strength, great temperature resistance and ensures high level of move force transfer onto the cone without sound artifacts.
All steel parts are extensively treated for weather protection. Cone neck was furthermore treated with fire-retardants. That together with non-flammable Nomex spider and TIL voice coil former allows the designers accommodate this driver in UL listed products.

Specifications

General Specs

Nominal Diameter 6.5"
Rated Impedance 16 Ohm
Magnet Ferrite
Basket Material Steel

Power Handling

AES Power 150 W
Continuous Power 300 W
Peak Power 600 W

Voice Coil

Diameter 50.8 mm
Winding Wire CCAW
Former Glass Fiber
Winding Height 12.6 mm

T/S Parameters

Resonant Frequency (Fs) 130.00 Hz
Re 14.90 \u2126
Qes 0.710
Qms 5.13
Qts 0.620
Vas 2.64 liters
Sd 132.70 cm\u00B2
Mms 14.30 grams
Rms 2.28
Cms 0.1000
Bl 15.64 T\u00B7m
Le 0.920 mH
Sensitivity 92.00 dB

Design Details

Surround Material fabric
Cone/Dome Material Paper CF
Spider Nomex
T-Plate 8 mm
Xmax (peak) 2.3 mm
Xmech 10.3 mm
Overall Diameter 165.20 mm
Bolt Circle Diameter 157.50 mm
Baffle Cutout Dia. 144.50 mm
Mounting Holes 4
Depth (flange to rear) 78.00 mm
Net Weight 2.70 kg

Ordering Codes

Product Code 61FINDX16-332A

Frequency Response & Impedance

Frequency response of 61FIND

2D Drawing

2D drawing of 61FIND

Enclosure Recommendations

Recommended enclosure alignments (sealed):
- 3.0 liters (Qtc 0.85): compact sealed, controlled response; system resonance approx. 178 Hz; suitable for compact column mid-woofer bays
- 7.9 liters (Qtc 0.71): moderate sealed, near-Butterworth response; system resonance approx. 155 Hz; recommended for 2-way nearfield and PA applications
- 1.0 liter (Qtc approx. 1.18): ultra-compact sealed for column-array driver bays; system resonance approx. 248 Hz; requires HP filter at 200-250 Hz and active EQ
Vented enclosures are not viable for this driver: with Fs = 130 Hz and Vas = 2.64 liters, bass reflex tuning would require port dimensions impractical for the available cabinet volume.

Frequently Asked Questions

  • - EXTENDED FREQUENCY RESPONSE
  • - Lightweight, yet strong paper cone. Weather sealed, fire-retardant materials
  • - Affordable design
Recommended enclosure alignments (sealed):
- 3.0 liters (Qtc 0.85): compact sealed, controlled response; system resonance approx. 178 Hz; suitable for compact column mid-woofer bays
- 7.9 liters (Qtc 0.71): moderate sealed, near-Butterworth response; system resonance approx. 155 Hz; recommended for 2-way nearfield and PA applications
- 1.0 liter (Qtc approx. 1.18): ultra-compact sealed for column-array driver bays; system resonance approx. 248 Hz; requires HP filter at 200-250 Hz and active EQ
Vented enclosures are not viable for this driver: with Fs = 130 Hz and Vas = 2.64 liters, bass reflex tuning would require port dimensions impractical for the available cabinet volume.
Outdoor / weather-resistant; compact 2-way pa top or hi-fi mid-woofer
AES Power: 150 W, Continuous: 300 W, Peak: 600 W. Sensitivity: 92.00 dB (1W/1m).

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