Ecler SAMI-402 4-Channel 19" Analogue Stereo Rack Mixer

DETAILS

The Ecler SAMI-402 is a 4-Channel 19" Analogue Stereo Installation Rack Mixer delivering three MIC/LINE stereo inputs, one LINE stereo input, 3-band tone control, talkover priority and a MUTE remote control port.

Compact, professional and versatile 1RU mixer for retail, education, corporate, hospitality and sports and wellness installations.

The Ecler SAMI-402 has been designed specifically for professional fixed audio installations across a wide range of commercial environments — including retail stores, educational facilities, corporate offices, hospitality venues and sports and wellness spaces. In a compact 1RU 19" rack format, the SAMI-402 provides a well-specified four-channel analogue stereo mixing solution with three MIC/LINE stereo inputs and one dedicated LINE stereo input, accommodating a flexible combination of microphone and line-level sources from a single rack-mountable unit. The result is a clean, professional and highly practical mixer that simplifies installation audio system design without compromising on features or audio quality.

High-Quality Audio Performance

The SAMI-402 delivers excellent audio performance across all input types. Line inputs achieve a frequency response of 10Hz to 50kHz (-1dB), THD+Noise of less than 0.005% and a signal-to-noise ratio of greater than 100dB — figures that reflect the quality of Ecler's engineering heritage. Balanced MIC inputs achieve a frequency response of 10Hz to 30kHz (-1dB) and SNR greater than 85dB, with a common mode rejection ratio of greater than 60dB at 1kHz for clean, interference-free microphone amplification. All MIC inputs support +18V phantom power for condenser microphones, and microphone sensitivity can be fine-tuned via rear panel adjustment for precise level matching across different microphone types and installation scenarios.

Talkover, Tone Control & Flexible Output

The SAMI-402 includes a number of features specifically tailored for professional installation use. A 3-band tone control section — with Bass at 100Hz ±15dB, Mid at 2kHz ±15dB and Treble at 10kHz ±15dB — allows tonal shaping of the mix output to suit different room acoustics and system requirements. A talkover (priority) function is assignable from each MIC/LINE input over the mix bus, with a 2-second release time and -30dB ducking effect — ensuring microphone announcements are always clearly heard above background music. The main mix output is switchable between stereo and mono operation, with an additional AUX/REC output for recording or zone feed applications. Output levels are internally selectable at 0dB or +6dB to suit different downstream equipment requirements.

Remote Control & Safety Integration

The SAMI-402 includes a MUTE remote control input triggered by external dry contact closure — enabling straightforward integration with fire detection systems, emergency alert systems and other safety devices for automatic audio muting in an emergency. This makes the SAMI-402 a compliant and practical choice for commercial installations where fire safety integration is a requirement. Power LED, MUTE LED and VU-meter level LEDs provide clear front panel status monitoring at all times. The unit is passively cooled for silent operation and is supplied with a ±17.5VDC multi-plug external PSU, Euroblocks, rubber feet and mini jumpers.

Ecler SAMI-402 Key Features:

• 4-Channel 19" 1RU Installation Mixer: 3 x MIC/LINE stereo inputs and 1 x LINE stereo input in a compact, professional rack-mount format.
• +18V Phantom Power: Available on all MIC inputs for condenser microphone compatibility.
• 3-Band Tone Control: Bass (100Hz ±15dB), Mid (2kHz ±15dB) and Treble (10kHz ±15dB) for tonal shaping to suit different room acoustics.
• Talkover (Priority) Function: Assignable from each MIC/LINE input over the mix bus with 2-second release time and -30dB ducking effect.
• Adjustable MIC Sensitivity: Rear panel microphone sensitivity adjustment (±15dB) for precise level matching across different microphone types.
• Main Mix Output: Switchable stereo/mono output via 3-pin Euroblock with internally selectable output level (0dB or +6dB).
• AUX/REC Output: Additional stereo RCA output for recording or zone feed applications.
• MUTE Remote Control Input: External dry contact closure for integration with fire detection systems and other safety devices.
• Excellent Audio Specifications: Line THD+Noise < 0.005%, SNR > 100dB, frequency response 10Hz–50kHz (-1dB).
• Passive Cooling: Silent operation for noise-sensitive installation environments.
• Universal Mains Input: 100–240V AC, 50–60Hz via external PSU.
• Compact 1RU Format: 482.5 x 44 x 153.7mm for efficient use of rack space.
• Supplied with PSU, Euroblocks, Rubber Feet & Mini Jumpers: Ready for immediate installation out of the box.

SPECS & DOWNLOADS

Ecler SAMI-402 Specifications:

Download the PDF Data Sheet HERE > 

Inputs

• Input Channels: 3 x MIC/LINE stereo, 1 x LINE stereo
• MIC Connection: 3-pin Euroblock (balanced)
• LINE Connection: RCA
• Input Sensitivity: LINE 1–3: 0dB / LINE 4: 0dB or -6dB (internally selectable) / MIC 1–3 BAL: -35dB
• Input Sensitivity Adjust: MIC/LINE ±15dB
• Input Impedance: LINE 1–3: 50kΩ / LINE 4: 50kΩ / MIC 1–3 BAL: >1kΩ
• Phantom Power: +18VDC (all MIC inputs)
• CMRR: MIC > 60dB at 1kHz

Outputs

• Main Output: 1 x stereo/2 x mono (3-pin Euroblock), 0dB or +6dB (internally selectable), 600Ω
• AUX/REC Output: 1 x stereo RCA, 0dB or +6dB (internally selectable), 10kΩ

Signal

• Frequency Response: LINE: 10Hz–50kHz (-1dB) / MIC BAL: 10Hz–30kHz (-1dB)
• THD+Noise: LINE < 0.005% / MIC BAL < 0.04%
• SNR: LINE > 100dB / MIC BAL > 85dB

Control

• Tone Control: 3-band — Bass 100Hz ±15dB / Mid 2kHz ±15dB / Treble 10kHz ±15dB
• Talkover: 2-second release time, -30dB ducking effect
• MUTE Port: NO/NC dry contact closure
• Indicators: Power LED, MUTE LED, VU-meter level LEDs

Electrical

• Power Supply: ±17.5VDC external PSU (included)
• Mains Input: 100–240V AC, 50–60Hz
• Power Consumption: 10.8VA / 4.5W
• Cooling: Passive

Physical

• Installation Format: 19" rack, 1RU
• Dimensions (W x H x D): 482.5 x 44 x 153.7mm
• Weight: 1.75kg
• Operating Temperature: -10°C to +40°C
• Operating Humidity: < 85% RH
• Included Accessories: ±17.5VDC multi-plug PSU, Euroblocks, rubber feet, mini jumpers

Manuals & Data Sheets:

Specifications:

UK Delivery Charges

Orders over £99.00 will be delivered FREE of charge via our Standard UK Delivery Service (2-3 days, UK Mainland).

All orders below £99.00 will be sent at a rate of £3.99 per order (2-3 days, UK Mainland). 

If you need your item faster, we also offer a Premium Delivery, Next Day Tracked service at a cost of £9.95.

Do you require your item before 12 pm? We offer a Premium Delivery, Next Day Tracked, Pre 12 service at a cost of £14.99.

Note: Next-day services are classed as working days (Mon-Fri) and do not include weekends.

For a UK mainland Saturday Delivery Service, the rate is £19.99  

All delivery options will be available at the checkout stage. 

(Please ensure you add a mobile number to your order for tracking)

Cut-off Times

Orders must be placed before 3:30 pm to guarantee
same-day dispatch. Any orders placed after this time are not guaranteed
to be shipped the same day, and are more likely to be shipped the next
working day.

To guarantee Saturday Delivery, orders must ideally be placed before 2 pm.

We operate during office hours, Mon-Fri, 9 am - 5 pm,
and are closed during the weekend. Orders placed over the weekend or
Friday after cut-off will be processed and shipped the following Monday.

Scottish Highlands & Islands

Due to our location relative to the Scottish Highlands & Islands,
we cannot offer a next-day service. Items being sent to the following
postcodes will carry a minimum of 2 days' lead time.

• Scottish Highlands: FK17-21, IV1-39, IV52-54, IV63, KW1-14, PA21-40 (excluding PA38), PH19-26, PH30-41, PH49-50
• Scottish Islands: HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA38, PA41-49, PA60-78, PH42-44, ZE1-3

International Delivery Charges

Standard EU Shipping service £29.99  (Shipping to The Republic of Ireland, France, Germany, Guernsey & Jersey - 3-5 days)

Other Destinations - Price will be dependant on your location and number of boxes. Please get in touch for more details.

Delivery Notes

On delivery, you must inspect the goods carefully for damage as Audio
Volt is unable to accept responsibility for damage in transit, shortage
of delivery or loss of products unless the customer advises Audio Volt
of such within three working days from the date of delivery.

EU Import Tax

Any goods shipped outside of the UK, over a certain value, will incur an import tax. The cost and rate will depend on the country and the order value.

This is a legal requirement and MUST be paid prior to delivery in order to receive your goods. You will be contacted by the courier once the order is dispatched to pay the fee.

Failure to pay import tax when applicable will result in the order
being shipped back to Audio Volt. Any returned goods sent back to us due
to non-payment of import tax are NOT ELIGIBLE for a refund on the
shipping charge.

60 Day Returns Policy

We ask that you follow these guidelines to help us process your return as quickly and efficiently as possible:

1. Please
keep your order reference to hand. This confirms your original order
and gives us the necessary details to authorise the product’s return.

2. Contact our Customer Services Team on 02476 369890 (or e-mail info@audiovolt.co.uk). We will then send you an RMA number and a returns form, which needs to be completed and sent back with the returned item(s).

3. (If
the order has been unpacked) re-package it to ensure that it is being
returned in its original condition. Please make sure all items relating
to the product are returned, including manuals and cables.

4. When returning an item, please obtain a ‘proof of postage’ receipt from the Courier.

Returned
items must be mailed within 10 days of when the RMA Number has been
issued. Items received with a post date 30 days after your requested
return will NOT be eligible for refund.

Please note:
Our returns policy is quite straightforward, but there are a number of
conditions that we ask our customers to comply with before applying:

1. It
is your responsibility to request a return. If you don’t tell us you
want to make a return, we don’t know. Once you do tell us, we will do
everything we can to action it.

2. If you have
not requested a return within 60 days of receiving an order, we will
assume that you are intending to keep it, and we will not authorise a
return.

3. We always refund the payment
according to how the original purchase was made and aim to do so within
72 hours of the return being received by us.

4. Returned
goods are liable for a restocking fee of 15% towards handling and
repackaging if the order is not returned in its original, unopened
packaging. This charge will be subject to our inspection of the returned
goods.

5. Delivery charges will not be refunded unless the delivered goods are faulty.

6. Replacement products are dispatched immediately after the returned goods have been received and accepted by Audio Volt.

7. Items
that develop a fault within 30 days of delivery are eligible for a
replacement or a refund. Delivery costs are also reimbursed for faulty
items. Please contact our Customer Services Team on 02476 369890 if you
believe your item has developed a fault.

Finally, please remember
that notifying us of your intention to apply for a return, saving the
delivery paperwork and keeping the order in its original packaging will
help both you and Audio Volt to process the return quickly.

Any Questions?

If you have any questions about our Returns policy, please telephone us on 02476 369890 or email us at info@audiovolt.co.uk

(We operate during office hours, Mon-Fri, 9 am - 5 pm, and are closed during the weekend)