The H-810, H710, H610, H510, H410, HA-M70, and HA-M50 were stereo headphones manufactured by the JVC Corporation. They were advanced for their time utilising CCA wire for the coil and polyester film diaphragm resulting is good frequency response. These are sometimes available for sale on eBay and highly sought after by audiophiles.
Specifications
| Model Name | H-810 |
| Type | Moving Coil |
| Frequency Response | 10 Hz to 25 kHz |
| Nominal Impedance | 32 Ω |
| Sensitivity (1 kHz) | 102 dB/mW |
| Max Input Capability | 100 mW |
| Mass | 215 g |
| Cord Length | 3 m |
| Model Name | H-710 |
| Type | Moving Coil |
| Frequency Response | 15 Hz to 22 kHz |
| Nominal Impedance | 32 Ω |
| Sensitivity (1 kHz) | 96 dB/mW |
| Max Input Capability | 100 mW |
| Mass | 220 g |
| Cord Length | 3 m |
| Model Name | H-610 |
| Type | Moving Coil |
| Frequency Response | 20 Hz to 20 kHz |
| Nominal Impedance | 32 Ω |
| Sensitivity (1 kHz) | 105 dB/mW |
| Max Input Capability | 100 mW |
| Mass | 155 g |
| Cord Length | 3 m |
| Model Name | H-510 |
| Type | Moving Coil |
| Frequency Response | 20 Hz to 20 kHz |
| Nominal Impedance | 8 Ω |
| Sensitivity (1 kHz) | 106 dB/mW |
| Max Input Capability | 100 mW |
| Mass | 155 g |
| Cord Length | 3 m |
| Model Name | H-410 |
| Type | Moving Coil |
| Frequency Response | 20 Hz to 20 kHz |
| Nominal Impedance | 32 Ω |
| Sensitivity (1 kHz) | 97 dB/mW |
| Max Input Capability | 100 mW |
| Mass | 125 g |
| Cord Length | 3 m |
| Model Name | HA-M70 |
| Type | Moving Coil |
| Frequency Response | 20 Hz to 20 kHz |
| Nominal Impedance | 32 Ω |
| Sensitivity (1 kHz) | 102 dB/mW |
| Max Input Capability | 100 mW |
| Mass | 45 g |
| Cord Length | 3 m |
| Model Name | HA-M50 |
| Type | Moving Coil |
| Frequency Response | 20 Hz to 20 kHz |
| Nominal Impedance | 32 Ω |
| Sensitivity (1 kHz) | 98 dB/mW |
| Max Input Capability | 100 mW |
| Mass | 40 g |
| Cord Length | 3 m |