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    Russound D1675 16-Channel Premium Amplifier — Product Guide

    September 08, 2026 3 min read

    Full product guide and specifications for the Russound D1675 16-channel, low-profile Class-D amplifier.

    💾 Download Original PDF 🛒 View Product
    Full text manual (for reference)

    Product guide for the Russound D1675 — a premium 16-channel, low-profile Class-D multi-channel amplifier designed for whole-home audio, home theater speakers, and larger outdoor spaces.

    Overview

    The D1675 low-profile amplifier suits several applications: driving premium home theater speakers for optimum movie/TV sound, or providing enough power to drive multiple speakers throughout the home for music. Russound amplifiers have been a go-to choice for audio specialists for years due to their performance, reliability, and value, and the D-Series extends that legacy.

    Key Features

    • New premium industrial design for a clean look on a shelf or in a 19" rack
    • Powerful Class-D amplifiers with up to 16 channels and up to 75 watts per channel; inputs are bridgeable for even more power when needed
    • 3 input options per channel: 2 bus inputs and 1 line input for source flexibility
    • Easy configuration for Full Range sound, Low Pass filter (20Hz-160Hz), or High Pass filter (80Hz-20kHz)
    • Control flexibility with 3 turn-on modes: Always On, Signal Sensing, or 12V Trigger Control
    • Rack mountable, low-profile form factor with 2 rack unit height
    • Ideal for larger spaces and outdoor areas

    What's in the Box

    • D1675 amplifier
    • 6-foot power cord
    • Set of removable 4-pin speaker connectors
    • Set of rack mount ears with screws
    • Owner's manual

    D1675 At a Glance

    • Sixteen-channel, 2-rack-unit premium performance amplifier
    • 75 watts per channel @4Ω, 2.66Ω stable, powers up to 3 pairs of 8-ohm speakers per zone
    • Power-on modes: Signal Sensing / 12V trigger / Always On
    • Audio filters: Full Range, Low Pass 20Hz-160Hz, High Pass 80Hz-20kHz

    Inputs & Switches

    Russound D1675 application example: adding extra speakers using the D1290 zone amplifier, with color-coded wiring from zone outputs to Patio, Gazebo, and Pool speaker locations, and crossover switch detail views
    Application example showing how the D-Series amp's zone outputs, bus inputs, and crossover filter switches connect to distribute speakers across an outdoor installation (Patio, Gazebo, Pool).
    • Dual Bus Inputs: Allow up to 2 different audio sources to be configured and shared among any of the amplifier's zones
    • Level Gain Adjustment: Gain increase/decrease for every zone
    • Audio Filter Setting Switch: Set for Low Pass (LP), High Pass (HP), or Full-Range (Full) per zone
    • Dedicated Zone Input: Provides a dedicated audio source to each zone
    • Zone Input Selector: Choose Bus Input A, Bus Input B, or the dedicated Line In for each zone
    • Stereo/Bridged Mode Switch: Set to Bridged when combining a zone's channels into a single mono zone (requires re-configuring speaker wiring per the owner's manual)
    • Speaker Connection: Removable screw-down connectors accept up to 12 AWG wire
    • Turn-on Mode Switch: Always On, Auto-Sensing, or 12V (for use with the 12V trigger input)
    • 12V Trigger In/Out: Enables automated turn-on/off via a 12V DC trigger — set the Turn-On Mode Switch to 12V when using it

    Home Theater Application Example

    Feed each of the outputs from a home theater pre-amplifier to the D1675's channels. A typical setup sets Zones 1-5 (in-ceiling speakers) to Full Range and Zone 6 (subwoofers) to Low Pass Filter.

    Technical Specifications

    Spec D1675
    Number of Channels 16
    Filter Options High Pass, Low Pass, Full Range
    Power Output – 4Ω 75W/channel, 1kHz, one zone driven
    Power Output – 8Ω 37W/channel, 1kHz, one zone driven
    Power Output – 8Ω Bridged 150W, 1kHz, one zone driven
    Frequency Response Full Range: 20Hz-20kHz ±3dB @1W into 4/8Ω; Low Pass: 20Hz-160Hz; High Pass: 80Hz-20kHz
    Input Sensitivity 4Ω: 620mV for 75W @1kHz; 8Ω: 690mV for 37W @1kHz
    Input Impedance >22k ohms line input
    Signal to Noise Ratio >90dB A-weighted (4Ω); >96dB A-weighted (8Ω)
    Trigger Input/Output 12V, Global
    Volume Gain Adjustment By zone
    Line Inputs Selectable: Bus A, Bus B, Zone
    Speaker Connectors Detachable screw-down, up to 12 gauge
    Operating Temperature 32°F to 104°F (0°C to 40°C)
    Altitude 0 to 9,843 ft (3,000m)
    Power Requirements (NA Model) 115-120VAC, 60Hz (1000W max)
    Power Requirements (International -i Model) 220-240VAC, 50Hz (1000W max)
    Power Connector IEC C14
    Standby Power Consumption 0.3W
    Product Dimensions 17.125"(W) x 3.5"(H) x 9.75"(D) (43.5 x 8.8 x 24.8cm)
    Product Weight 12.8 lbs (5.8 kg)
    Shipping Dimensions 20.2"(W) x 6.7"(H) x 14.3"(D) (51.33 x 17 x 36.3cm)
    Shipping Weight 14.8 lbs (6.7 kg)
    Limited Warranty 2 Years