Talk:Wheelock ES series

Missing information

There are several parts of the ES series I am unsure about:

• Several people have claimed that the ES uses a dynamic driver speaker, which is why the horn sounds different from the EH and AES. This would make sense, since it was released the same year as the CH series, and from my understanding, it was released before mini-horns such as the GX-90. However, the siren and warble are at high frequencies that are commonly produced by piezoelectric horns. I have not found any definitive evidence for or against this claim.
• The meaning of "H" and "L" in -BH1 and -DL1 is unclear. This might refer to the sound output level, or it might refer to the backbox size. Note that the EH was produced in -DL and -EL models, while the EW was produced in -BH, -DH, and -EH models. Note that the "F" in -BF, -CF, and -DF chimes probably refers to the fact that they are for fire alarm signaling, since Wheelock also produced Telchimes with -AT and -BT in the model codes.
• This thread mentions the existence of some ES units that are missing the tone selector, despite there being a space for the selector on the circuitboard. It is unclear whether this was common to all earlier ES models (since Wheelock did not seem to mention multitone horns in their advertisements until 1987).
• The warble tone seems to be a faster version of the siren tone, since both have a slow frequency decrease and a fast frequency increase. Is the horn a faster version of this same tone, or is it something else?
• Was this the first electronic horn?

If anyone has definitive answers to these, it would be great if they were added to the page. Mhgk (talk) 01:13, 1 June 2024 (UTC)