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General specifications

Mixing capabilityMixing channels32 Mono + 4 Stereo64 Mono + 4 Stereo
GROUP16 MIX (Group/AUX) busses16 MIX (Group/AUX) busses
AUX16 MIX (Group/AUX) busses16 MIX (Group/AUX) busses
MAINStereo, MonoStereo, Mono
Input channel functionsHPF, Attenuator, 4-band PEQ, 2x Dynamics, Pan (LR or LCR with CSR)HPF, Attenuator, 4-band PEQ, 2x Dynamics, Pan (LR or LCR with CSR)
Output channel functionsAttenuator, 4-band PEQ, DynamicsAttenuator, 4-band PEQ, Dynamics
On-board processors4x GEQ, 4x GEQ/SPX (GEQ: 31-band or 2x Flex15), 50x Output port delay4x GEQ, 4x GEQ/SPX (GEQ: 31-band or 2x Flex15), 66x Output port delay
I/OMic inputs16 (Recallable)32 (Recallable)
Phantom power+48V DC; ON/OFF per channel+48V DC; ON/OFF per channel
AD converter24-bit; 128-time over sampling24-bit; 128-time over sampling
Line outputs8 Omni output16 Omni output
DA converter24-bit; 128-time over sampling24-bit; 128-time over sampling
Digital I/O2tr in/out, USB Memory Recorder/Player2tr in/out, USB Memory Recorder/Player
Expansion slotsMini-YGDAI (16-in/16-out); Possible to remote HA gain via slot2x Mini-YGDAI (16-in/16-out); Possible to remote HA gain via slots
Control and othersEthernet, MIDI, USB (Storage/Key), Word clock I/OEthernet, MIDI, USB (Storage/Key), Word clock I/O, Lamp
General specificationsLS9-16LS9-32
Internal processing32bit, Accumulator: 58bit32bit, Accumulator: 58bit
Sampling frequency rateInternal44.1kHz, 48kHz44.1kHz, 48kHz
External44.1 kHz (-10%) to 48 kHz (+6%)44.1 kHz (-10%) to 48 kHz (+6%)
Signal delayLess than 2.5 ms (@48kHz)Less than 2.5 ms (@48kHz)
Total harmonic distortionLess than 0.05% (20Hz-20kHz)Less than 0.05% (20Hz-20kHz)
Frequency response0, +0.5, -1.5dB 20Hz-20kHz0, +0.5, -1.5dB 20Hz-20kHz
Dynamic rangeDA: 110dB; AD+DA: 108dBDA: 110dB; AD+DA: 108dB
Hum & noise levelEquivalent input noise-128dBu-128dBu
Residual output noise-86dBu-86dBu
Crosstalk-80 dB Adjacent Input Channels, Input to Output-80 dB Adjacent Input Channels, Input to Output
Power requirementsAC100-240V 50/60HzAC100-240V 50/60Hz
Power consumption95W170W
DimensionsW480mm; 18-7/8in884mm; 34-13/16in
H220mm; 8-11/16in220mm; 8-11/16in
D500mm; 19-11/16in500mm; 19-11/16in
Net weight12.0kg; 26.5lbs19.4kg; 42.8lbs
AccessoriesOwner’s Manual, AC Power CordOwner’s Manual, AC Power Cord, Dust Cover

Analog input characteristics

Analog input characteristics
Input terminal Actual load impedance For use with nominal Input level Connector

GAIN Sensitivity Nominal Max. before clip
INPUT 1-n* -62dB
3kohms 50-600 ohm Mics & 600ohm Lines -82dBu -62dBu -42dBu XLR3-31 type*
-10dBu +10dBu +30dBu

* LS9-32: n=32, LS9-16: n=16

Analog output characteristics

Analog output characteristics
Output terminal Actual source impedance For use with nominal GAIN SW Output level Connector
Nominal Max. before clip
OMNI OUT 1-n* 75ohms 600ohm Lines +24dB**
XLR-3-32 type
PHONES OUT 15ohms 8ohm Phones - 75mW 150mW ST Phone jack
40ohm Phones - 65mW 150mW

* LS9-32: n=16, LS9-16: n=8
** Default

Digital output characteristics

Digital output characteristics
Terminal Format Data length Level Connector
2TR IN DIGITAL COAXIAL IEC60958 24bit 0.5Vpp/
RCA pin jack
(Consumer Use)
24bit 0.5Vpp/
RCA pin jack

Control I/O characteristics

Control I/O characteristics
Terminal Format Level Connector
NETWORK (Ethernet) 100Base-T - RJ45
WORD CLOCK IN - TTL/75ohms, Terminated BNC
OUT - TTL/75ohms BNC
LAMP * - 0V-12V XLR-4-31 type
USB HOST USB1.1 USB ** A type USB Connector

* Only for LS9-32; 4pin=+12V, 3pin=GND; Max: 5W
** Bus powered hubs are not supported.

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Installation Case

Thanks to its cost-effectiveness, one of the many advantages of digital audio is how regional venues can nowadays install the same sound technology as the biggest and best concert halls. Inspired by Milan’s iconic Teatro Alla Scala, a new multi-purpose venue in the Italian city of Merate is enjoying all the benefits of a Yamaha audio system.

Installation Case

Costing over £60m, the new Prime Minister’s Office in Brunei is an opulent, state of the art venue which houses the central coordinating body for all of the sultanate’s government ministries and agencies. With a theatre and banqueting hall that each seat 1000, a 300-seat conference hall and 13 further conference and meeting rooms, Yamaha digital mixers and amplifiers deliver the requisite optimum audio quality.