STETSOM FLEX SERIES

The Stetsom Bravo Flex line features high-power Class D monoblock car audio amplifiers with "FLEX" (or Automatic/Smart Impedance System) technology. This allows the amp to automatically adapt and deliver stable, consistent power output across a range of load impedances without manual switching or significant power drop-off—ideal for flexible subwoofer setups where wiring configurations (series/parallel) vary.

Key Models:

Bravo Flex 3K (often listed as Bravo Bass Flex 3K): A bass-focused monoblock amp rated at ~3000W RMS. It supports automatic impedance from 0.5Ω to 2Ω, delivering roughly 3000–3500W RMS depending on voltage and exact load (e.g., ~3000W at 0.5Ω, ~3100–3500W at 1Ω, ~3000W at 2Ω @14.4V). Narrow frequency response (typically 5Hz–200Hz), optimized for subwoofers and deep bass.
Bravo Flex 8K (often Bravo Bass Flex 8K): A higher-power bass monoblock rated at ~8000W RMS. It uses FLEX tech for automatic impedance from 0.5Ω to 1Ω, providing massive output (e.g., ~8200W at 1Ω @14.4V, with lower at 2Ω but optimized for very low-impedance loads). Designed for extreme SPL bass applications, with sub-bass focus (5Hz–200Hz range) and features like smart/silent cooling.
Bravo Full Flex 3K: A full-range version of the 3K model (mono Class D). It delivers ~3000W RMS consistently across 0.5Ω to 2Ω (e.g., ~3000W at 0.5Ω, ~3100W at 1Ω, ~3150W at 2Ω @14.4V). Wide frequency response (5Hz–22kHz), with adjustable high-pass (5–90Hz) and low-pass (90Hz–22kHz) crossovers—making it versatile for subwoofers, midbass, or even full-system use beyond pure bass.

FLEX Ohm Technology Explained:

Stetsom's FLEX (Automatic Impedance System) is a smart multi-impedance design that makes the amplifier stable and efficient from very low loads (0.5Ω) up to higher ones (1Ω or 2Ω, model-dependent) without losing much power. It auto-detects/adjusts to the connected speaker load.

How it's useful:

Flexibility — Wire subs in different configurations (e.g., dual 1Ω coils for 0.5Ω total, or series for 2Ω) and still get near-max rated power—no need to buy separate 0.5Ω-stable or 1Ω-stable amps.
Consistency — Maintains ~constant high RMS output (e.g., 3000W across the range on the 3K models), reducing underpowering risks.
Convenience & future-proofing — Great for evolving setups, multiple subs, or experimenting with wiring for optimal SPL/efficiency without amp swaps.
Efficiency — Handles low-impedance loads reliably for maximum bass impact while staying cool and protected