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SS 4591 Pressure Mid

THROAT DIAMETER : 2″ (50.8MM)
NOMINAL IMPENDENCE : 8 OHM
POWER CAPACITY : 150W ABOVE 400Hz
PEAK POWER : 1000W PEAK ABOVE 500Hz
MAX SPL : 136dB AT 150W
SENSITIVITY : 118dB ON 2242 HORN
FREQUENCY RANGE : 200-7000Hz
RECOMMENDED CROSSOVER : 300Hz
MIN. IMPENDENCE MODULUS: 8.3 OHM AT 5KHz
VOICE COIL DIAMETER : 3.5″ (90MM)
MAGNET MATERIAL : FERRITE
FLUX (TESIA): 1.95
EFFICIENCY : 35% (300-5000Hz)
VOICE COIL MATERIAL : COPPER CLAD ALUMINIUM
VOICE COIL FORMER : KAPTON
DIAPHRAGM MATERIAL : POLYSTER
OVERALL DIAMETER : 182(+/-3MM)
DEPTH: 90MM
NET WEIGHT : 6 KG

About this product

Categories: MID PRESSURE, SS 4591

Description
Reviews (0)

Description

The D2 (SS-2430K) Pressure Mid delivers unmatched clarity and dynamic performance for professional sound systems. Engineered with precision, it features a durable diaphragm and robust build, ensuring consistent performance under demanding conditions. Its optimized design enhances mid-range frequencies, making it ideal for DJ setups, live events, and studio applications.

Key Features:

High-Pressure Output: Produces powerful and clear mid-range tones.
Robust Build: Designed to withstand heavy use in professional environments.
Precision Engineering: Ensures minimal distortion and optimal sound clarity.
Versatile Applications: Perfect for DJs, sound engineers, and music enthusiasts seeking top-tier audio performance.

Experience the perfect balance of durability and sound quality with the D2 (SS-2430K) Pressure Mid—the ultimate choice for professionals.

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Faq's

The SS-4591 Pressure Mid is a mid-range speaker driver designed to handle the most important vocal and instrument frequencies in a professional audio system, giving clear and powerful mid tones.

“Pressure Mid” refers to a mid-range driver engineered for higher sound pressure level (SPL) and reduced distortion in the mid frequency band — ideal for larger venues and high-output systems.

Yes — the SS-4591 uses a 2″ throat diameter and standard mounting pattern compatible with many professional horns and speaker boxes that support mid-range drivers.

Yes — for best performance, pair this mid driver with an appropriate crossover (recommended around 300 Hz) to integrate with woofers and tweeters in a multi-way speaker system.

In systems designed for pressure mid drivers, upgrading to a driver like the SS-4591 can improve mid clarity, sensitivity, and output, especially in professional DJ or PA setups.

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SS-4591 Pressure Mid – Professional Mid-Range Audio Driver

High-Output Mid-Frequency Driver for Professional Systems

The Sousys SS-4591 Pressure Mid is a high-performance mid-range speaker driver engineered to deliver strong, clear mid-range frequencies for DJ speakers, PA systems, and professional audio setups. Designed with a robust ferrite magnet, high-quality diaphragm, and a large voice coil, this driver produces effortless sound projection with excellent sensitivity and dynamic response — perfect for live events, clubs, and performance venues.

Short Product Description

The Sousys SS-4591 Pressure Mid is a premium mid-range audio driver designed to deliver powerful, clear mid frequencies with high sensitivity and robust output, ideal for professional DJ and PA sound systems.

Key Features

High Sensitivity & Output – Designed to deliver strong mid-range sound with high efficiency, making vocals and instruments come alive.
Professional-Grade Power Handling – Handles approximately 150 W AES with up to 1000 W peak power above crossover frequencies.
Wide Mid-Range Frequency Response – Covers a broad part of the audio spectrum (typically from around 200 Hz – 7000 Hz) for balanced mid-range performance.
Ferrite Magnet Structure – Durable magnet design provides stable performance and solid acoustic output.
Large Voice Coil & Diaphragm – 3.5″ (90 mm) voice coil and polyester diaphragm ensure sustained output and reliability.
Standard 2″ Throat Size – Compatible with horn systems and speaker enclosures that accept a 2-inch mid driver.

Technical Overview

Specification	Details
Model	SS-4591 Pressure Mid
Throat Diameter	2″ (50.8 mm)
Nominal Impedance	8 Ω
Power Capacity (AES)	150 W above ~400 Hz
Peak Power	~1000 W peak above ~500 Hz
Sensitivity	~118 dB (1 W/1 m)
Frequency Range	~200 Hz – 7000 Hz
Recommended Crossover	~300 Hz
Voice Coil Diameter	3.5″ (90 mm)
Magnet	Ferrite
Diaphragm Material	Polyester
Overall Diameter / Depth	~182 mm × ~90 mm
Net Weight	~6 kg

Why Choose the Sousys SS-4591 Pressure Mid?

The mid-range frequency band is critical for music and speech clarity — where vocals, guitars, and many instruments are most prominent. A dedicated pressure mid driver like the SS-4591 delivers higher sound pressure levels (SPL) with lower distortion compared to standard mid drivers, resulting in clearer sound performance even at high volumes.

This driver combines high sensitivity, robust power handling, and reliable construction to ensure your speaker system produces dynamic, balanced sound with punch and definition — essential for DJs, live sound engineers, event setups, and professional audio applications.

Ideal Applications

✔ Professional DJ speaker systems
✔ Live sound reinforcement & PA systems
✔ Club and event venues
✔ Concert audio rigs
✔ Speaker upgrades and professional installations

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SS 4591 Pressure Mid

Description

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Faq's

What is the SS-4591 Pressure Mid driver used for?

What does “Pressure Mid” mean?

Will this driver fit in standard enclosures?

Can I use this driver with a crossover?

Does replacing a standard mid driver with this improve sound quality?