Model Twenty-Three
| Brand | KLH |
| Manufacturer | KLH Research & Development Corp. |
| Function | Speaker |
| Country | United States |
| Model ID | 23KLH |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 36.8 × 64.1 × 29.2 cm (W × H × D) |
| Weight | 46lbs (Shipped) |
| Treble | 1.75" Paper Cone |
| Midrange/Bass | 12" Paper Cone |
| Impedance (Nominal) | 8Ω |
| Recommended Amplifier Power | >25W |
| Enclosure Type | Sealed |
| Finish | Walnut |
| MSRP (19??) | $169.95 |