MODEL 6890: ULTRA BLASTMASTER™ UPGRADE KIT FOR DEMON™ 730 TRAIN HORNS
ENGINEERED EXCLUSIVELY FOR DEMON™ MODEL 730 HORNS
Experience your high-output train horns in all their true acoustic glory with the premium Kleinn Model 6890 Ultra BlastMaster™ Upgrade Kit. While standard multi-bell setups face structural flow caps, this high-performance engineering package entirely resets the baseline for extreme pneumatic delivery. By completely re-engineering the internal airflow mechanics of your existing Demon™ 730 assembly, this kit forces the maximum volume of air directly into the trumpets simultaneously. The physics are simple: more air volume equals more acoustic power, resulting in devastating, soul-shaking decibel output that commands total highway respect.
MAXIMUM FLOW VOLUME AND DYNAMIC INTENSITY
The Ultra BlastMaster™ system replaces your restrictive baseline air delivery layout to open the performance floodgates, delivering a shocking twist on a classic setup. By transitioning your principal tank supply line to a massive 1/2" high-pressure feed run, this kit completely ditches standard restrictive lines. This massive jump in cubic feet per minute (CFM) allows the drivers to hit peak operational volume immediately, transforming your system into a deeper, noticeably louder, and far more aggressive train horn layout. When it comes to the ultimate vehicle configuration, "too loud" is just right.
Why Upgrade to Ultra BlastMaster™?
- Triple-Valve Power Distribution: Supplies all necessary plumbing components to run three solenoids simultaneously. By dedicating a high-flow valve to every single trumpet, you ensure instant simultaneous actuation while eliminating manifold flow constraints entirely.
- 30% More Output Velocity: Massive 1/2" primary air line upgrade delivers maximum pneumatic volume straight to the horn drivers, pushing the Demon™ over the edge into peak decibel performance.
- Professional-Grade Hardware: Includes premium high-pressure adapters and two legendary Vortex™ 6 (VX6003) heavy brass solenoids, ensuring one on each horn to comfortably manage extreme system flow rates.
- Definitive Performance Transformation: This is a non-subtle, commercial-grade acoustic overhaul. Prepare your eardrums for extreme output levels.
THE VERDICT: The absolute peak of train horn intensity. The Model 6890 re-engineers your existing Demon™ setup into a multi-valve powerhouse, delivering the massive airflow scaling and instantaneous burst speeds required to rule the streets.
⚠️ Important Fitment Notes
This specialized performance upgrade kit is engineered specifically for the Model 730 Demon™ Train Horn architecture. (For systems running the Model 230 Beast™ horns, please utilize BlastMaster™ Upgrade Model 6885).
Model 6890 is the official upgrade for the following Kleinn systems:
- Universal ProBlaster Train Horn Kits: Models HK9 & HK9-Slimline
- Vehicle-Specific Systems: All system model configurations ending natively in "734"
What's Included in the Box
- Model VX6003 Brass Solenoids: Two (2) high-flow 12V heavy brass solenoid valves (Use the solenoid originally included with the Demon 730 so each horn has a dedicated solenoid).
- Upgraded Air Tubing: 12 Feet of Model 25012-1 High-Pressure 1/2" O.D. Premium Pneumatic Airline.
- Pneumatic Interface Hardware: Comprehensive kit-matched compression fittings, 4-way distribution manifold, and premium liquid thread sealant.
🔴 PRO TIP: Balance your upgraded pneumatic speed with clean electrical power distribution. Because you are now firing three high-performance solenoids simultaneously, protect your circuit pathways by routing your trigger lines through an isolated 40-amp fully sealed automotive relay like our Kleinn Part #340 to completely shield your cockpit activation buttons from electrical spikes.
PRODUCT SPECIFICATIONS
| Feature | Details |
| Part Number | 6890 |
| Product Collection | Ultra BlastMaster™ Maximum Flow Upgrade Pack |
| Solenoid Inclusions | Two (2) Vortex™ 6 VX6003 All-Brass 12V Valves |
| Primary Feed Line Size | Upgraded 1/2" Outside Diameter (O.D.) High-Pressure Line Run |
| Target Horn Compatibility | Kleinn Model 730 Demon™ Train Horn Assemblies exclusively |
| System Voltage Integration | Standard 12-Volt DC Control Loops |
Three Solenoid Relay Wiring Configuration
Operating a triple-solenoid setup requires structured electrical distribution to safeguard your dash switches and ensure uniform current deployment to all coils simultaneously:
- Relay Terminal 30: Connect directly to a fused +12V positive battery terminal supply source (Ensure heavy gauge wire wire-run matching the total continuous amp draw).
- Relay Terminal 87: Split this power output line into a three-way junction run, feeding one positive lead wire cleanly to each of the individual solenoid valve assemblies.
- Relay Terminal 86: Ground this terminal pin out directly to a clean, unpainted chassis frame run or negative battery wire layer.
- Relay Terminal 85: Route this control pin wire line run up to your interior manual momentary cockpit switch or horn ring wire link.
- Solenoid Ground Returns: Gather the remaining secondary wire leads from all three solenoid casings and ground them collectively to a bare metal location.
MANUFACTURER INSTRUCTION LINKS
