Optimal Audio Up 4S – Two-Way Passive
Two-Way Passive
Full Range, Low Profile 4” ceiling speaker
The Optimal Audio Up 4S is a compact, full-range ceiling speaker designed to deliver clear and balanced audio for both music and speech in commercial environments. Featuring a 4-inch driver and silk dome tweeter, it provides wide, even coverage, making it ideal for small to medium-sized spaces. Its low-profile design with an enclosed backcan allows for easy installation in ceilings with limited depth, while ensuring discreet integration and reliable performance as part of a professional audio system.
Description
Up 4S is a discreet, two-way, passive 4” speaker delivering consistent coverage and full frequency sound to a wide range of cost conscious, commercial environments from hotels and concourses to retail outlets, bars and restaurants.
Up 4S features a 4” (105mm) low frequency driver paired with a 0.7” (20mm) silk dome tweeter. It is suitable for both high quality speech and music reproduction.
The Pendant 1 and Grille 1 accessories offer further flexibility in installation and applications, allowing you to either elegantly suspend Up 4S speakers as stylish pendants or achieve a sleek, bezel-less grille appearance. These accessories are available in both black and white, helping to blend into any architectural environment.
The wide 150° conical coverage of Up 4S makes it particularly suitable for low ceilings and reduces the number of speakers required for even coverage leading to a reduction in installation cost. A shallow steel back can allows installation in ceilings with minimal cavity depth. An integral fixing system is included to achieve a simple and clean installation. Up 4S has a steel back, perforated steel grille and finished in neutral white.
Each Up 4S can be run on a series of 70 or 100 Volt taps or at low impedance. Tap selection is via a rotary switch behind the removable grille.
A SmartAmp or powered Zone will provide amplification, optimal sound performance and loudspeaker protection via presets. When coupled with a Zone and WebApp, system set up and end user control is straight forward, and can be further supplemented by ZonePad wall controllers.
Up 4S Features
- 4” coaxial driver
- Discreet size with shallow back can
- Unobtrusive design
- 8 ohm or 70/100V line operation
- Range of power taps
- Wide conical coverage pattern
- Integrated mounting hardware
- Pendant and bezel-less grille accessory available
Resources & Downloads
Data sheets, manuals and resources for the Up 4S
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Quick Specs
- TYPE
- Two-way, full range, passive, ceiling speaker
- FREQUENCY RESPONSE (with preset)
- 110Hz - 18kHz ± 3dB -10dB @ 85Hz
- DRIVERS
- LF: 4” (105mm), Polypropylene injection moulded, HF: 0.7” (20mm) Silk Dome
- RATED POWER
- 15W (AES) 30W (Peak)
- NOMINAL IMPEDANCE
- 8Ω
Technical Specifications
- TYPE
- Two-way, full range, passive, ceiling speaker
- FREQUENCY RESPONSE (with preset)
- 110Hz - 18kHz ± 3dB -10dB @ 85Hz
- DRIVERS
- LF: 4” (105mm), Polypropylene injection moulded, HF: 0.7” (20mm) Silk Dome
- RATED POWER
- 15W (AES) 30W (Peak)
- NOMINAL IMPEDANCE
- 8Ω
- SENSITIVITY (1W/1m)
- 86dB
- MAXIMUM SPL
- 98dB (cont), 101dB (peak)
- CROSSOVER
- 3.5kHz passive
- RECOMMENDED HIGH-PASS FILTER
- 24dB/octave @ 85Hz
- TRANSFORMER TAPS @ 70V
- 8,4,2,1,0.5W
- TRANSFORMER TAPS @ 100V
- 8,4,2,1W
- DISPERSION (-6dB)
- 150˚ conical
- BACK CAN
- Zinc-plated Stee
- BAFFLE
- ABS
- PROTECTIVE GRILLE
- Perforated steel with cloth backing
- FIRE RATING
- UL94-V0
- CONNECTORS
- 4 Pin Euroblock with link out
- FITTINGS
- C-ring support backing plate
- DIMENSIONS (inc. Grille)
- (Ø) 202mm x (D) 144mm (Ø) 7.95” x (D) 5.67”
- CUT-OUT DIAMETER
- 178mm (7.01”)
- WEIGHT
- 2.2kg (4.9lbs)
- INCLUDED ACCESSORIES
- 2 tile support rails (for 2 ft or 600 mm tile spans), cutout template, paint shield, removable locking multi-pin connector
- RECOMMENDED SUB
- Sub 10
- RECOMMENDED AMPLIFIER
- Zone 4P, Zone 8P or SmartAmp series
Up 4S is a discreet, two-way, passive 4” speaker delivering consistent coverage and full frequency sound to a wide range of cost conscious, commercial environments from hotels and concourses to retail outlets, bars and restaurants.
Up 4S features a 4” (105mm) low frequency driver paired with a 0.7” (20mm) silk dome tweeter. It is suitable for both high quality speech and music reproduction.
The Pendant 1 and Grille 1 accessories offer further flexibility in installation and applications, allowing you to either elegantly suspend Up 4S speakers as stylish pendants or achieve a sleek, bezel-less grille appearance. These accessories are available in both black and white, helping to blend into any architectural environment.
The wide 150° conical coverage of Up 4S makes it particularly suitable for low ceilings and reduces the number of speakers required for even coverage leading to a reduction in installation cost. A shallow steel back can allows installation in ceilings with minimal cavity depth. An integral fixing system is included to achieve a simple and clean installation. Up 4S has a steel back, perforated steel grille and finished in neutral white.
Each Up 4S can be run on a series of 70 or 100 Volt taps or at low impedance. Tap selection is via a rotary switch behind the removable grille.
A SmartAmp or powered Zone will provide amplification, optimal sound performance and loudspeaker protection via presets. When coupled with a Zone and WebApp, system set up and end user control is straight forward, and can be further supplemented by ZonePad wall controllers.
- 4” coaxial driver
- Discreet size with shallow back can
- Unobtrusive design
- 8 ohm or 70/100V line operation
- Range of power taps
- Wide conical coverage pattern
- Integrated mounting hardware
- Pendant and bezel-less grille accessory available
| TYPE | Two-way, full range, passive, ceiling speaker |
| FREQUENCY RESPONSE (with preset) | 110Hz - 18kHz ± 3dB -10dB @ 85Hz |
| DRIVERS | LF: 4” (105mm), Polypropylene injection moulded, HF: 0.7” (20mm) Silk Dome |
| RATED POWER | 15W (AES) 30W (Peak) |
| NOMINAL IMPEDANCE | 8Ω |
| SENSITIVITY (1W/1m) | 86dB |
| MAXIMUM SPL | 98dB (cont), 101dB (peak) |
| CROSSOVER | 3.5kHz passive |
| RECOMMENDED HIGH-PASS FILTER | 24dB/octave @ 85Hz |
| TRANSFORMER TAPS @ 70V | 8,4,2,1,0.5W |
| TRANSFORMER TAPS @ 100V | 8,4,2,1W |
| DISPERSION (-6dB) | 150˚ conical |
| BACK CAN | Zinc-plated Stee |
| BAFFLE | ABS |
| PROTECTIVE GRILLE | Perforated steel with cloth backing |
| FIRE RATING | UL94-V0 |
| CONNECTORS | 4 Pin Euroblock with link out |
| FITTINGS | C-ring support backing plate |
| DIMENSIONS (inc. Grille) | (Ø) 202mm x (D) 144mm (Ø) 7.95” x (D) 5.67” |
| CUT-OUT DIAMETER | 178mm (7.01”) |
| WEIGHT | 2.2kg (4.9lbs) |
| INCLUDED ACCESSORIES | 2 tile support rails (for 2 ft or 600 mm tile spans), cutout template, paint shield, removable locking multi-pin connector |
| RECOMMENDED SUB | Sub 10 |
| RECOMMENDED AMPLIFIER | Zone 4P, Zone 8P or SmartAmp series |
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About Penguin Media Solutions
Penguin Media Solutions is a professional audio, video, and lighting design, installation, and maintenance company based in Brighton, UK. As an authorised Martin Audio dealer, we provide high-performance AV systems for commercial venues, hospitality, and event spaces across Brighton, London, and South-East England.
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