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Fast Ship
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Symphony Horn Set is a Bosch premium dual-tone horn delivering harmonized acoustic output. Operating at 12V with 5A x2, it produces frequencies of 420/500 Hz ensuring balanced high-low tone. Sound output ranges between 105-118 dB providing effective road presence. The 96mm x2 design supports strong resonance.
Brand
Bosch
Subcategory
Horns
Product ID
PRU70186
Vehicle Risk
Low
Part No
F002H10028
Gst
18
Horn Category
Dual Tone
Sound Output Type
Electromagnetic Solenoid
Sound Pressure Level Db 1m
105
Sound Pressure Level Db 2m
We use AI systems that synthesize specifications based on industry standards and available manufacturer documentation, suitable only for reference, comparison, and organization purposes. For critical decisions, verify against official manufacturer datasheets. For any assistance, contact us.
99
Frequency Tone Hz
420/500 Hz
Tone Characteristics
Dual Tone - Harmonized
Number Of Tones
2
Electrical System Voltage V
12
Current Consumption Per Horn A
5
Power Rating W
60
Duty Cycle Continuous Intermittent
Intermittent - High Power Draw
Thermal Management
Passive - No Active Cooling
Operating Temperature Range C
-20 to 85
Maximum Operating Temperature C
85
Minimum Operating Temperature C
-20
Material Composition
Brass & Steel Composite
Housing Material
Powder-Coated Steel
Diaphragm Material
Optimized Diaphragm Material
Corrosion Resistance Class
Class A - Premium Corrosion Protection
Weather Resistance Rating
IP65 - Water & Dust Resistant
Ip Rating Ingress Protection
IP65
Water Moisture Resistance
Sealed Rubber Boot Design
Uv Resistance
Excellent - UV Stabilized
Vibration Resistance Rating
Good Vibration Damping
Installation Type
Direct Bolt-on Bracket Mount
Mounting Position
Engine Bay/Bumper Area
Connector Type
Standard Spade Connectors
Wiring Gauge Required Awg
12
Relay Type Required
12V Horn Relay
Sound Quality Grade
Premium Grade - Bosch Engineering
Tone Uniformity
Consistent across frequency range
Acoustic Efficiency
84
Response Time Ms
42
Warm Up Time Required
Instant activation
Service Life Hours
2600
Cycle Life On Off Cycles
520000
Failure Rate Mtbf Hours
62000
Oem Fitment Level
OEM Equivalent Plus
Oem Cross Reference
BOSCH-F002H10028
Vehicle Classes Compatible
All Vehicle Classes - Cars, SUVs, Trucks
Driving Conditions Approved
City Driving, Highway, All Conditions
Road Legal Classification
Yes - ECE R28 Road Legal
Ece Eu Standards Compliance
ECE R28 Compliant
Sae Standards Compliance
SAE J377 Compliant
Iso Standard Compliance
ISO 7588 - Motor Vehicle Acoustic Test
Performance Certification
Premium Bosch Grade
Manufacturing Country
Germany - Bosch Premium Manufacturing
Quality Control Grade
Grade A - Premium Quality
Environmental Classification
ISO 14001 - Eco-Friendly
Special Features
Bosch Premium Engineering | Precise Acoustic Tuning
Installation Difficulty Rating
Intermediate - Basic Tools Required
Tool Requirements
Standard Wrench/Socket Set (8-13mm)
Replacement Indicators
Audible degradation or intermittent activation
Maintenance Requirements
None - Sealed Unit Design
Special Application Notes
Bosch OEM quality with premium acoustic performance
SKU
F002H10028
