Crossover and amplifier based canalphone system

A system comprising:

• a high audio driver carried by a canalphone housing;
• a low audio driver carried by the canalphone housing adjacent to the high audio driver;
• a passive audio crossover carried by the canalphone housing without any amplifier between the passive audio crossover and at least one of the high audio driver and the low audio driver, the passive audio crossover receives the audio signal from an audio source and limits the audio signal delivered to at least one of the high audio driver and the low audio driver to a suitable frequency range;
• and
• an audio interface to carry the audio signal from the audio source to the passive audio crossover through bonding of a high portion of the passive audio crossover's positive input to a low portion of the passive audio crossover's positive input, and through bonding of a high portion of the passive audio crossover's negative input to a low portion of the passive crossover's negative input.

A system comprising:

• a high audio driver carried by a canalphone housing;
• a low audio driver carried by the canalphone housing adjacent to the high audio driver;
• a passive audio crossover carried by the canalphone housing, the passive audio crossover receives an audio signal from an audio source and then delivers the audio signal in a suitable frequency range to at least one of the high audio driver and the low audio driver;
• in a first state, an amplifier that amplifies the audio signal sent to the passive audio crossover which delivers that amplified audio signal to at least one of the high audio driver and the low audio driver, the amplifier being non-destructively removable by a user;
• and
• in a second state that operates without any amplifiers between the passive audio crossover and at least one of the high audio driver and the low audio driver, an audio interface to carry the audio signal from the audio source to the passive audio crossover through bonding of a high portion of the passive audio crossover's positive input to a low portion of the passive audio crossover's positive input, and through bonding of a high portion of the passive audio crossover's negative input to a low portion of the passive crossover's negative input;
• a second amplifier;
• and
• a high portion of the passive audio crossover carried by the canalphone housing, the high portion of the passive audio crossover to receive the audio signal from the second amplifier and to limit the audio signal delivered to the high audio driver to a high frequency portion of the amplified audio signal.