Samson ZM75 – 5-zone preamp/mixer with integrated 75W power amplifier (100V / 4Ω), 6 mic/line and chime inputs

Samson ZM75 – 5-zone preamp/mixer with integrated 75W power amplifier (100V / 4Ω), 6 mic/line and chime inputs

The Samson ZM75 is a commercial-grade mixer-amplifier featuring 5 front-panel selectable zones , 6 mic/line inputs , and a 75W power amp capable of both 100V/70V/25V line and 4Ω low impedance . It features phantom power on channels 1–2 for condenser mics, a 7-band graphic EQ , a 4-tone chime , MOH (Music On Hold) input and output, and 3-level priority to ensure announcements are heard throughout the facility. Professional connectivity includes XLR, 1/4" and RCA inputs, plus Euroblock phone/paging and speaker outputs. It comes in a 2U rackmount format with lugs included.

At the rear, the ZM75 offers PRE-AMP OUT / AMP IN for inserting external processors and LINK IN / LINK OUT for linking to other units when the installation requires more inputs or power. The Euroblock speaker output provides 25 V / 70 V / 100 V taps and a 4 Ω Lo-Z output; zone selection is via the ALL and ZONE 1–5 pushbuttons on the front, with level indicators and protection LEDs for quick monitoring. Designed for schools, retail stores, restaurants, offices, and places of worship, the ZM75 combines reliability, connectivity, and ease of use in a single chassis.

Main features

• 5-zone / 75 W mixer-amplifier for 100 V/70 V/25 V or 4 Ω systems.
• 6 mic/line inputs with XLR , 6.35 mm jack and RCA connectors; independent level controls.
• Phantom on CH 1–2 for condenser microphones (15 V DC).
• 7-band graphic EQ (125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz; ±12 dB) for overall tonal adjustment.
• Integrated chime with 4 selectable tones for PA pre-alert.
• MOH (Music On Hold) with source selection (internal/external) and level control.
• 3-layer priority (phone/paging/priority microphone) and remote microphone connection via Euroblock.
• Front zone selector (ALL + ZONE 1–5) and 5-segment output meter with PROTECT indicator .
• Link/Expansion : LINK IN / LINK OUT and PRE-AMP OUT / AMP IN for external processing or system expansion.
• 2U 19" form factor with included rack ears; high-durability steel chassis .

Product benefits

• All-in-one PA and BGM system with real-time zoning and front-facing control.
• Clean installation with Euroblock for speakers and telephony, and standard connectors for sources.
• Clear and priority messages : alert chime, priorities and phantom on key channels.
• Scalability through links and optional TCM-3 module (CD/MP3 player + FM/AM tuner) in expansion bay.

Use cases

• Public address and background music systems for retail , hospitality, and catering industries with separate zones.
• Schools , places of worship , and offices requiring announcements and background music.
• Small corporate installations with PBX (telephone paging) and MOH integration.

Frequently Asked Questions

• Can I work at 100 V and 4 Ω? Yes. It has 25/70/100 V taps and a 4 Ω Lo-Z output via Euroblock.
• How do I link another unit? Use the LINK OUT on the first unit to the LINK IN on the second. You can also insert processing via PRE-AMP OUT / AMP IN .
• What inputs does it have? Six channels with XLR , 6.35 mm jack , and RCA connectors; channels 1–2 support 15 V phantom power .
• Does it include a zone selector on the front? Yes, with ALL and ZONE 1–5 buttons and a level indicator.

Description for projects

5-zone preamp/mixer with 75 W power amplifier for 100/70/25 V and 4 Ω . 6× mic/line inputs (XLR, 6.35 mm jack, RCA); 15 V phantom power on CH 1–2; 7-band graphic EQ (±12 dB); 4-tone chime ; MOH in/out; Euroblock phone/paging ; 3-layer priority ; LINK IN/OUT and PRE-AMP OUT / AMP IN . Euroblock outputs at 25/70/100 V and Lo-Z 4 Ω. Response (1 W, speaker tap) 100 Hz–10 kHz (+1.5/−3 dB); S/N > 90 dB; THD < 0.5 % (1 kHz); Power at 0.36% THD : 60 W. Dimensions 420 × 88 × 343 mm (2U); weight 8.72 kg.