Siren Amp

[kfr439]

Can anyone tell me the difference between these 3 siren amps?

HLN1185C
HLN1185D
HLM1185E

Thanks for your time

[007]

I'll take a stab at this:

Unless they have some type of internal option board, probably nothing other than progressive revisions of the same unit.

[PCSAR 4x4 652]

the 1185E is the Astro Spectra version, it will still work on a spectra, though. I use an 1185E w/ VRS on my spectra.

[hfitzgerald]

Here's the listing in M's database:

HLN1185E SYS 9000 SIREN/PA Unit of Measure: 1 EA $705.00

It also lists the A/B/C/D versions, but after each version it states in red text: The item HLN1185A has been replaced with HLN1185E. Selecting this item will add HLN1185E to your cart.

I would assume this to mean that all the later units are backwards compatible. (just as 007 and PCSAR have stated)

[kfr439]

Thanks for all of your help

[thomsoningreen]

Never swap system 9000 siren boxes with Astro/spectra siren boxes, I have found it will cause intermitten problems with the radio. The astro/spectra siren boxes are digital, the system 9000 are analog. The do work but it will cause crazy issues with the radio. I have seen it say out of range and have no problem with the radio. I have seen it cause random and numorous issues.

[Will]

The astro/spectra siren boxes are digital,

WHAT???? Digital..

[tvsjr]

Thomsoningreen - I'm wondering why you felt the need to Lazarus a *6-year-old* post to add incorrect information?

There is very little difference between the HLN1185B and -E... and it certainly isn't that one is "analog" and the other "digital" (hint: both use digital data for control). The 1185E is simply a later revision than the -B model.