ESS 689-1220 12" Cast Frame Woofer Speaker
How do you find a 12" woofer that matches the speed, accuracy, and audiophile performance of the ESS Air Motion Transformer? Look at the ESS 689-1220 12" cast frame speaker! The ESS 689-1220 incorporates fine engineering and uncompromising materials, resulting in an accurate, reliable, and eminently listenable bass woofer.
A treated and reinforced paper cone, combined with a high-strength 40 oz. ceramic magnet and 2" copper voice coil, provides ultra-fast transient response that really makes music come alive. The woofer's cast aluminum frame is strong and rigid—necessary if you want to enjoy music for years to come.
| PRODUCT SPECIFICATIONS |
| Power Handling (RMS) |
200 Watts |
| Power Handling (max) |
400 Watts |
| Impedance |
4 ohms |
| Frequency Response |
29 to 1,500 Hz |
| Sensitivity |
91.5 dB 1W/1m |
| Voice Coil Diameter |
2" |
| Magnet Weight |
35 oz. |
| THIELE-SMALL PARAMETERS |
| Resonant Frequency (Fs) |
24 Hz |
| DC Resistance (Re) |
3.9 ohms |
| Voice Coil Inductance (Le) |
0.73 mH |
| Mechanical Q (Qms) |
4.90 |
| Electromagnetic Q (Qes) |
0.52 |
| Total Q (Qts) |
0.47 |
| Compliance Equivalent Volume (Vas) |
6.69 ft.³ |
| Maximum Linear Excursion (Xmax) |
6 mm |
| MATERIALS OF CONSTRUCTION |
| Cone Material |
Treated Paper |
| Surround Material |
Rubber |
| Voice Coil Wire Material |
Copper |
| Voice Coil Former |
Aluminum |
| Basket / Frame Material |
Cast Aluminum |
| Magnet Material |
Ferrite |
| MOUNTING INFORMATION |
| Overall Outside Diameter |
12.375" |
| Baffle Cutout Diameter |
11.125" |
| Depth |
5.625" |
| # Mounting Holes |
4 |
| OPTIMUM CABINET SIZE * |
| Sealed Volume |
3.31 ft.³ |
| Sealed F3 |
41 Hz |
| Vented Volume |
9.14 ft.³ |
| Vented F3 |
21 Hz |
| * Enclosure volume/F3s based on BassBox "optimum" calculations |
- |
| ESS 689-1220 12" Cast Frame Woofer Speaker |
| Brand |
ESS Labs Inc. |
| Model |
689-1220 |
| Part Number |
264-622 |
| UPC |
844632092701 |
| Product Category |
Woofers |
| Product Rating |
Be the first to
write a review
|
| Unit of Measure |
ea |
| Weight |
11.0000 |
