Part #:

Model: KMA-24H

BendixKing - Audio Panel
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Part Number :
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KMA-24H -50/54
(scroll down or click here to view -70/71 info)  
-50/54 FEATURES
  • Compact, fully solid-state unit containing pushbutton audio selector panel with seperate speaker and headphone isoaltion amplifiers
  • Styled to match with the other King Silver Crown units but can be integrated into any 500 ohm output audio system
  • Provides interphone communication including five microphone audio inputs for up to five intercom stations to meet crew member helicopter and fixed wing needs
  • Designed for use in both single and dual audio panel installations
  • Can handle as many three transceivers and six receivers
  • Models with different features and combinations of AUTO, 2 COMMs, 2 NAVs, DME, MKR, ADF, HF, TEL selections (see table below for selections)
  • Night vision goggle version available (see table below)
  • Has two unswitched inputs for use as altimeter warning and telephone ringer
  • Has speaker outputs for ramp hailer and passenger address or intercom
  • PA mute provided to mute passenger background music systems when a microphone is keyed
  • Similar to KMA-24 but DOES NOT include marker beacon presentation and DOES include intercom functions/controls
  • 14V or 28VDC operation
  • TSO'd
-50/54 SPECIFICATIONS
Size: 6.25"W x 1.3"H x 6.81"L Weight: 1.7 lbs.
TSO Compliance: TSI C50b, Class I per RTCA DO-170, Env. Cat. /A1D1/A/PKS/XXXXXXZBAAA Duty Cycle: Continuous
Applicable Documents: RTCA DO-160, DO-160 Temperature Range: -20 to +55C
Design: All solid state Input Impedance: 380 ohms for ICS inputs, 500 ohms for all audio inputs
Speaker Muting: At least 55 dB when the MIC is keyed Input Isolation (iso amp): 60dB between inputs
Distortion: Less than 5% at rated output Frequency Response: Within 3dB from 350Hz to 6000Hz
Part Number Audio Panel Description:
066-1055-50 Selections for: HF/COM1/COM2/NAV1/NAV2/DME/MKR/ADF1/ADF2
066-1055-51 Selections for: TEL/COM1/COM2/NAV1/NAV2/DME/MKR/ADF1/ADF2
066-1055-52 Selections for: HF/COM1/COM2/NAV1/NAV2/DME/MKR/ADF/AUTO
066-1055-53 Selections for: TEL/COM1/COM2/NAV1/NAV2/DME/MKR/ADF/AUTO
066-1055-54 Same as -52 unit but with night vision goggle capability

 



KMA-24H -70/71
-70/71 FEATURES
  • Compact, fully solid-state unit containing pushbutton audio selector panel, five station intercom, speaker and headphone isolation amplifiers
  • Front panel controls include an interphone volume control, audio selector buttons, speaker auto switch, interphone VOX (Voice Operated Intercom) control
  • Styled to match with the other King Silver Crown units but can be integrated into any 500 ohm output audio system
  • Provide ability for pilot and co-pilot to isolate out of the intercom system through seperate independent amplifiers
  • Up to 5 transceivers and 5 receivers can be controlled in -71 version
  • Up to 4 transceivers and 6 receivers can be controlled in -70 version
  • Has two unswitched inputs for use as altimeter warning and telephone ringer
  • Has speaker outputs for ramp hailer and passenger address or intercom
  • PA mute provided to mute passenger background music systems when a microphone is keyed
  • User can select VOX, keyed or hot mic intercom through adjustments of the VOX control on the front panel
  • Contains summing amplifier to combine received audio with the pilots microphone for installations where a voice recorder is necessary
  • Similar to KMA-24H -50/54 but DOES include Voice Operated Intercom, seperate alternate action capability and keyed activation of up to 5 stations
  • 14V or 28VDC operation
  • TSO'd
-70/71 SPECIFICATIONS
Size: 6.31"W x 1.3"H x 6.49"L Weight: 1.7 lbs.
TSO Compliance: TSI C50c, Class I per RTCA DO-170, Env. Cat. /A2D1/ A/ PKS/ XXXXXXZB/ AB/ BZ/ A Duty Cycle: Continuous
Applicable Documents: RTCA DO-160A, DO-170 Temperature Range: -20 to +70C
Design: All solid state Input Impedance: 320 ohms for ICS inputs, 500 ohms for all audio inputs
Speaker Muting: At least 55 dB when the MIC is keyed Input Isolation (iso amp): 60dB between inputs
Isolater Muting: Pilot -55 dB, Co-pilot -55 dBd    
Distortion: Less than 5% at rated output Frequency Response: Within 3dB from 350Hz to 6000Hz
Part Number Audio Panel Description (Push Button Selections)
066-1055-70 COM1/COM2/COM3/COM4/NAV1/NAV2/DME/MKR/ADF1/ADF2
066-1055-71 COM1/COM2/COM3/COM4/COM5/NAV1/NAV2/DME/MKR/ADF

 
066-1055-50
- Audio Panel
Price Condition Delivery
CALL OR RFQ SV OUTRIGHT RFQ

SEA Repair Capabilities: Yes

066-1055-51
- Audio Panel
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: Yes

066-1055-52
- Audio Panel w/ Intercom

NSN: 5821-01-381-8894

Price Condition Delivery
CALL OR RFQ SV OUTRIGHT RFQ
CALL OR RFQ SV EXCHANGE RFQ
$2,450.00 NEW OUTRIGHT RFQ

SEA Repair Capabilities: Yes

066-1055-53
- Audio Panel

NSN: 5895-01-393-5442

Price Condition Delivery
CALL OR RFQ OH OUTRIGHT RFQ

SEA Repair Capabilities: Yes

066-1055-54
- Audio Panel
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: No

066-1055-64
- Audio Control
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: No

066-1055-65
- Audio Panel
Price Condition Delivery
CALL OR RFQ OH OUTRIGHT RFQ

SEA Repair Capabilities: No

066-1055-68
- Audio Panel
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: No

066-1055-70
- Audio Panel w/ Intercom

NSN: 5821-01-432-7181

Price Condition Delivery
$995.00 OH OUTRIGHT RFQ
CALL OR RFQ NEW OUTRIGHT RFQ

SEA Repair Capabilities: Yes

066-1055-71
- Audio Panel w/ Intercom

NSN: 5821-01-326-6139

Price Condition Delivery
$850.00 OH OUTRIGHT RFQ
$2,910.00 NEW OUTRIGHT RFQ

SEA Repair Capabilities: Yes

066-1055-71-NVG
- Isolation Amp ICS Box (NVG)
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: No

066-1055-72
- Audio Panel
Price Condition Delivery
CALL OR RFQ CALL OR RFQ CALL OR RFQ

SEA Repair Capabilities: No

Click on a question below to see the answer. If you have a question about this model that is not answered below, please contact questions@seaerospace.com

None, they represent the same unit. Original King Radio part numbers were 9 digits. For example, 066-3056-01. During the Bendix and King merger (i.e. Bendix/King), a new part numbering system was created that converted these 9 digit part numbers to 12 digits. Therefore, 066-3056-01 became 066-03056-0001. Despite this numbering change, units that were originally from the King Radio design still have the 9 digit part number format on the unit dataplate. The 12 digit format for King units appears to be used for catalog and internal Honeywell purposes only. Therefore, any unit that has a zero in its third to last number (i.e. XXX-XXXX-X0XX) has a 9 digit part number (i.e. XXX-XXXX-XXX) on its dataplate / ID Plate.
In January 1989 Bendix/King changed from a nine digit to a twelve digit part numbering system. The new, larger 12 digit numbers allowed for the inclusion of software version into the last two digits of the part number for certain units in which software changed frequently such as EFIS and TCAS processors. Therefore, the two digits immediately preceding the software version indicate the hardware version of the unit.

Different software versions imply different operational features and/or interface capabilities and software modifications imply software repairs (bug fixes) to insure proper operation of these features and interfaces. Software version upgrades frequently require hardware modifications to the unit. Such hardware modifications accompanying software version upgrades do not necessarily change the hardware version of the unit.
Southeast Aerospace exchanges are based on the return of an undamaged, economically repairable core unit with identical part number as the unit shipped to the customer. An "economically repairable" core is defined as one where the cost to repair/overhaul (or Repair Cap) does not exceed 80% of the original SV/OH exchange price billed. Should the Repair Cap exceed 80%, the customer will be billed the additional amount. In the event this amount exceeds the Outright Price for the unit, the customer would only be billed the difference between the Outright Price and SV/OH Exchange Price with the core returned as-is to the customer.

Here is an example of such a transaction:

$1000 Exchange Price charged to customer
$1000 x .8 = $800 Maximum Allowable core repair charge or Repair Cap

$2000 Cost to repair core unit
- $800 Less Core repair cap
---------
$1200 Additional billing amount.

2200.00 Total Cost of transaction

Please Note:
SEA offers exchange on new items as well. However, repair cap as indicated above is still based on SV/OH exchange price.

Negotiating the exchange price of a unit only limits the allowable repair cap for the core unit. Southeast Aerospace's exchange transactions are based on the return of economically repairable core unit. Once the core is received and evaluated, the core repair cost incurred by SEA cannot exceed 80% of the original exchange price. That is, it cannot cost SEA more than 80% of the original OH/SV exchange price collected from the customer. Therefore, when and if an SEA exchange price is discounted, there is a risk that additional charges may be assessed once the core is returned and evaluated.

For more information, please refer to these other Exchange FAQs

The part number for the terminal contact pin that is used on most Silver Crown units is 030-01107-0000. Previously, Honeywell (Bendix/King) offered them in preset amounts based on the unit that were being used with (ex. 030-01107-0064 for the KX-155). Currently, you simply purchase the amount of -0000 pins required.

As of 2010, the List Price for each contact pin is $5.98. Therefore, in most cases, it is less expensive to buy the entire unit installation kit.