IS4250P
IS4250P
IS4250P
IS4250P
IS4250P
IS4250P
IS4250P
IS4250P
IS4250P

IS4250P

4 x 250W power amplifier

The ISP series is Australian Monitor's premium offering of multichannel Class D power amplifiers, delivering high quality audio reinforcement in the following options - Dual channel 120W or 250W and Quad channel 120W or 250W.

Featuring Ethernet control, Full Featured DSP, ErP Low Power Standby, Dante® support and efficient Class D amplifiers.

The ISP also features ALMA Control Software which allows you to connect, configure and control the product from any device supporting an HTML5 compliant web browser.

Warranty

2 Years

Dimensions

325mm×435mm×44mm

  • 4 x 250W power amplifier

  • 4 ohm, 70V and 100V output options

  • Class D topology

  • Ethernet Control

  • Embedded ALMA Control Software accessible using any HTML5 web browser

  • Full DSP - Input Matrix, Filters, Parametric Eq, Compressor / limiter, Delay, Mute, Inversion

  • 4 software configurable general purposes input/outputs

  • ErP(1275/2008/EC) Low Power Standby (<2W)

  • 4 Input, 4 Output Dante® support using expansion card DM4x4

  • Additional 4 Analogue line inputs using expansion card ANALOGUE4

DESCRIPTION
4 x 250W power amplifier
OUTPUT POWER
250W (per channel)
CHANNEL
4
OUTPUT MODE
4 Ohm-70V-100V
INPUT VOLTAGE
100-240Vac 50-60Hz
FREQUENCY RESPONSE
75Hz - 16kHz
THD + NOISE
4 Ohm, 1kHz: < 0.05% , 100V, 1kHz: < 0.08%
SIGNAL TO NOISE RATIO
> 100dB
INPUT SENSITIVITY
1Vrms
ADDITIONAL FEATURES
4 general purpose input/outputs. Software configurable. Dedicated standby contact closure input
USER INTERFACE
Embedded User interface accessed via web browser
ETHERNET
RJ45, 100BASE-T with Auto MDI-X
DM4X4
4 input, 4 output Dante tranceiver card
ANALOGUE4
4 input analogue input card
COOLING
Fan-assisted
MOUNTING
2RU
DIMENSIONS (WxHxD)
435mm x 89mm x 325mm
NET WEIGHT
16kg

NOTE: Due to continuous improvements, all specifications are subject to change

Powered by Sonodyne

Reviews

For audiophiles, Sonodyne has been a legendary Make in India brand, & the Bandish offers 120W of pure grade sound!

★ ★ ★ ★ ★5/5

Akash Banerjee (DeshBhakt)

Sonodyne is an Indian brand many of us (and some of our parents) grew up with, and my earliest memories of the brand date back to the late '80s/ early '90s, when I used to regularly visit an uncle in Kolkata who was a big fan of the brand and its single-minded focus on recreating music "as the artist intended". Fast forward to 2024, and while the brand continues to serve the serious audiophile and pro-studio markets, it's their Bluetooth wireless speaker range that caught my eye, specifically the most powerful in their range, the aptly named Malhar (after the raga , Malhar which, as the myth goes, has the power to induce thunder and rain). Not one for slimline aesthetics, the Malhar resembles a cajón (or a clapbox as many may know it), an immediate throwback to when audio equipment was engineered for producing clean sound, first and foremost. With its wooden cabinet, classic aesthetics and all, the 8-kilogram Malhar is pleasing on the eye, but it demands pride of place — it's not one to disappear into the décor. Around the front are two 5" glass-fiber cone drivers accompanied by two 1" tweeters, and the sides have two 5" passive radiators. Inputs are all clustered towards the rear, with optical, aux, USB ports along with a handy 5V DC USB port to charge a phone while it's connected to the speaker. Controls to switch between these inputs and change tracks/volume are all on the top and are mirrored on the supplied remote. No buttons to fiddle around with bass/treble settings (intentionally so to retain the original feel of the track), and I would have preferred the indicator LEDs to be more visible, so you know the speaker is on or which input is selected. No app or Wi-Fi connectivity, which one starts expecting at this price point. Any reservations you may have had subside the moment you start playing music on the Malhar. Irrespective of genre, the speaker stands up and delivers, with a balanced sonic signature that accurately renders the highs, mids and lows without colouring the audio, so to speak. Streaming tracks as varied as Simon and Garfunkel to the Beach Boys to some of AR Rahman's classics, Malhar reproduces the tracks damn near flawlessly across its wide 40Hz – 20kHz frequency range. Throw in some punchier tracks and bump up the volume, and you really have to wake up the neighbours before the speaker starts showing the slightest hint of distortion at the top end. Worth noting as well is the expansive soundstage and the open quality to the playback. At its price, Malhar is likely to appeal to audio purists, and despite its name, this truly is a speaker for all seasons. The 'Made in India since 1970' is bonus appeal. Rating: 8/10 Price: INR 37,500

★ ★ ★ ★ ★0/5

Sonic superiority

Since its inception in the early 70s, Sonodyne is a company that has been at the forefront of the innovative Indian professional audio market

★ ★ ★ ★ ★0/5

MONDO DR

For audiophiles, Sonodyne has been a legendary Make in India brand, & the Bandish offers 120W of pure grade sound!

★ ★ ★ ★ ★5/5

Akash Banerjee (DeshBhakt)

Sonodyne is an Indian brand many of us (and some of our parents) grew up with, and my earliest memories of the brand date back to the late '80s/ early '90s, when I used to regularly visit an uncle in Kolkata who was a big fan of the brand and its single-minded focus on recreating music "as the artist intended". Fast forward to 2024, and while the brand continues to serve the serious audiophile and pro-studio markets, it's their Bluetooth wireless speaker range that caught my eye, specifically the most powerful in their range, the aptly named Malhar (after the raga , Malhar which, as the myth goes, has the power to induce thunder and rain). Not one for slimline aesthetics, the Malhar resembles a cajón (or a clapbox as many may know it), an immediate throwback to when audio equipment was engineered for producing clean sound, first and foremost. With its wooden cabinet, classic aesthetics and all, the 8-kilogram Malhar is pleasing on the eye, but it demands pride of place — it's not one to disappear into the décor. Around the front are two 5" glass-fiber cone drivers accompanied by two 1" tweeters, and the sides have two 5" passive radiators. Inputs are all clustered towards the rear, with optical, aux, USB ports along with a handy 5V DC USB port to charge a phone while it's connected to the speaker. Controls to switch between these inputs and change tracks/volume are all on the top and are mirrored on the supplied remote. No buttons to fiddle around with bass/treble settings (intentionally so to retain the original feel of the track), and I would have preferred the indicator LEDs to be more visible, so you know the speaker is on or which input is selected. No app or Wi-Fi connectivity, which one starts expecting at this price point. Any reservations you may have had subside the moment you start playing music on the Malhar. Irrespective of genre, the speaker stands up and delivers, with a balanced sonic signature that accurately renders the highs, mids and lows without colouring the audio, so to speak. Streaming tracks as varied as Simon and Garfunkel to the Beach Boys to some of AR Rahman's classics, Malhar reproduces the tracks damn near flawlessly across its wide 40Hz – 20kHz frequency range. Throw in some punchier tracks and bump up the volume, and you really have to wake up the neighbours before the speaker starts showing the slightest hint of distortion at the top end. Worth noting as well is the expansive soundstage and the open quality to the playback. At its price, Malhar is likely to appeal to audio purists, and despite its name, this truly is a speaker for all seasons. The 'Made in India since 1970' is bonus appeal. Rating: 8/10 Price: INR 37,500

★ ★ ★ ★ ★0/5

Sonic superiority

Since its inception in the early 70s, Sonodyne is a company that has been at the forefront of the innovative Indian professional audio market

★ ★ ★ ★ ★0/5

MONDO DR

For audiophiles, Sonodyne has been a legendary Make in India brand, & the Bandish offers 120W of pure grade sound!

★ ★ ★ ★ ★5/5

Akash Banerjee (DeshBhakt)

Sonodyne is an Indian brand many of us (and some of our parents) grew up with, and my earliest memories of the brand date back to the late '80s/ early '90s, when I used to regularly visit an uncle in Kolkata who was a big fan of the brand and its single-minded focus on recreating music "as the artist intended". Fast forward to 2024, and while the brand continues to serve the serious audiophile and pro-studio markets, it's their Bluetooth wireless speaker range that caught my eye, specifically the most powerful in their range, the aptly named Malhar (after the raga , Malhar which, as the myth goes, has the power to induce thunder and rain). Not one for slimline aesthetics, the Malhar resembles a cajón (or a clapbox as many may know it), an immediate throwback to when audio equipment was engineered for producing clean sound, first and foremost. With its wooden cabinet, classic aesthetics and all, the 8-kilogram Malhar is pleasing on the eye, but it demands pride of place — it's not one to disappear into the décor. Around the front are two 5" glass-fiber cone drivers accompanied by two 1" tweeters, and the sides have two 5" passive radiators. Inputs are all clustered towards the rear, with optical, aux, USB ports along with a handy 5V DC USB port to charge a phone while it's connected to the speaker. Controls to switch between these inputs and change tracks/volume are all on the top and are mirrored on the supplied remote. No buttons to fiddle around with bass/treble settings (intentionally so to retain the original feel of the track), and I would have preferred the indicator LEDs to be more visible, so you know the speaker is on or which input is selected. No app or Wi-Fi connectivity, which one starts expecting at this price point. Any reservations you may have had subside the moment you start playing music on the Malhar. Irrespective of genre, the speaker stands up and delivers, with a balanced sonic signature that accurately renders the highs, mids and lows without colouring the audio, so to speak. Streaming tracks as varied as Simon and Garfunkel to the Beach Boys to some of AR Rahman's classics, Malhar reproduces the tracks damn near flawlessly across its wide 40Hz – 20kHz frequency range. Throw in some punchier tracks and bump up the volume, and you really have to wake up the neighbours before the speaker starts showing the slightest hint of distortion at the top end. Worth noting as well is the expansive soundstage and the open quality to the playback. At its price, Malhar is likely to appeal to audio purists, and despite its name, this truly is a speaker for all seasons. The 'Made in India since 1970' is bonus appeal. Rating: 8/10 Price: INR 37,500

★ ★ ★ ★ ★0/5

Sonic superiority

Since its inception in the early 70s, Sonodyne is a company that has been at the forefront of the innovative Indian professional audio market

★ ★ ★ ★ ★0/5

MONDO DR

For audiophiles, Sonodyne has been a legendary Make in India brand, & the Bandish offers 120W of pure grade sound!

★ ★ ★ ★ ★5/5

Akash Banerjee (DeshBhakt)

Sonodyne is an Indian brand many of us (and some of our parents) grew up with, and my earliest memories of the brand date back to the late '80s/ early '90s, when I used to regularly visit an uncle in Kolkata who was a big fan of the brand and its single-minded focus on recreating music "as the artist intended". Fast forward to 2024, and while the brand continues to serve the serious audiophile and pro-studio markets, it's their Bluetooth wireless speaker range that caught my eye, specifically the most powerful in their range, the aptly named Malhar (after the raga , Malhar which, as the myth goes, has the power to induce thunder and rain). Not one for slimline aesthetics, the Malhar resembles a cajón (or a clapbox as many may know it), an immediate throwback to when audio equipment was engineered for producing clean sound, first and foremost. With its wooden cabinet, classic aesthetics and all, the 8-kilogram Malhar is pleasing on the eye, but it demands pride of place — it's not one to disappear into the décor. Around the front are two 5" glass-fiber cone drivers accompanied by two 1" tweeters, and the sides have two 5" passive radiators. Inputs are all clustered towards the rear, with optical, aux, USB ports along with a handy 5V DC USB port to charge a phone while it's connected to the speaker. Controls to switch between these inputs and change tracks/volume are all on the top and are mirrored on the supplied remote. No buttons to fiddle around with bass/treble settings (intentionally so to retain the original feel of the track), and I would have preferred the indicator LEDs to be more visible, so you know the speaker is on or which input is selected. No app or Wi-Fi connectivity, which one starts expecting at this price point. Any reservations you may have had subside the moment you start playing music on the Malhar. Irrespective of genre, the speaker stands up and delivers, with a balanced sonic signature that accurately renders the highs, mids and lows without colouring the audio, so to speak. Streaming tracks as varied as Simon and Garfunkel to the Beach Boys to some of AR Rahman's classics, Malhar reproduces the tracks damn near flawlessly across its wide 40Hz – 20kHz frequency range. Throw in some punchier tracks and bump up the volume, and you really have to wake up the neighbours before the speaker starts showing the slightest hint of distortion at the top end. Worth noting as well is the expansive soundstage and the open quality to the playback. At its price, Malhar is likely to appeal to audio purists, and despite its name, this truly is a speaker for all seasons. The 'Made in India since 1970' is bonus appeal. Rating: 8/10 Price: INR 37,500

★ ★ ★ ★ ★0/5

Sonic superiority

Since its inception in the early 70s, Sonodyne is a company that has been at the forefront of the innovative Indian professional audio market

★ ★ ★ ★ ★0/5

MONDO DR

For audiophiles, Sonodyne has been a legendary Make in India brand, & the Bandish offers 120W of pure grade sound!

★ ★ ★ ★ ★5/5

Akash Banerjee (DeshBhakt)

Sonodyne is an Indian brand many of us (and some of our parents) grew up with, and my earliest memories of the brand date back to the late '80s/ early '90s, when I used to regularly visit an uncle in Kolkata who was a big fan of the brand and its single-minded focus on recreating music "as the artist intended". Fast forward to 2024, and while the brand continues to serve the serious audiophile and pro-studio markets, it's their Bluetooth wireless speaker range that caught my eye, specifically the most powerful in their range, the aptly named Malhar (after the raga , Malhar which, as the myth goes, has the power to induce thunder and rain). Not one for slimline aesthetics, the Malhar resembles a cajón (or a clapbox as many may know it), an immediate throwback to when audio equipment was engineered for producing clean sound, first and foremost. With its wooden cabinet, classic aesthetics and all, the 8-kilogram Malhar is pleasing on the eye, but it demands pride of place — it's not one to disappear into the décor. Around the front are two 5" glass-fiber cone drivers accompanied by two 1" tweeters, and the sides have two 5" passive radiators. Inputs are all clustered towards the rear, with optical, aux, USB ports along with a handy 5V DC USB port to charge a phone while it's connected to the speaker. Controls to switch between these inputs and change tracks/volume are all on the top and are mirrored on the supplied remote. No buttons to fiddle around with bass/treble settings (intentionally so to retain the original feel of the track), and I would have preferred the indicator LEDs to be more visible, so you know the speaker is on or which input is selected. No app or Wi-Fi connectivity, which one starts expecting at this price point. Any reservations you may have had subside the moment you start playing music on the Malhar. Irrespective of genre, the speaker stands up and delivers, with a balanced sonic signature that accurately renders the highs, mids and lows without colouring the audio, so to speak. Streaming tracks as varied as Simon and Garfunkel to the Beach Boys to some of AR Rahman's classics, Malhar reproduces the tracks damn near flawlessly across its wide 40Hz – 20kHz frequency range. Throw in some punchier tracks and bump up the volume, and you really have to wake up the neighbours before the speaker starts showing the slightest hint of distortion at the top end. Worth noting as well is the expansive soundstage and the open quality to the playback. At its price, Malhar is likely to appeal to audio purists, and despite its name, this truly is a speaker for all seasons. The 'Made in India since 1970' is bonus appeal. Rating: 8/10 Price: INR 37,500

★ ★ ★ ★ ★0/5

Sonic superiority

Since its inception in the early 70s, Sonodyne is a company that has been at the forefront of the innovative Indian professional audio market

★ ★ ★ ★ ★0/5

MONDO DR

Studio microphones in blue light

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