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Compact rectangular USB audio mixer with XLR and TRS ports, matte black finish, front knobs and buttons

Creative Labs

Creative Labs SB1720 Sound Blaster K3+ USB mixer sound card accessory

SKU CH-D1ZP-G0BH8 MPN SB1720

An external USB mixer with XLR phantom power, reverb and autotune effects for streaming, recording and karaoke

  • DetailsSystem Requirements Windows Intel Core2 Duo or AMD equivalen
  • Key featuresThe Sound Blaster K3+ supports up to six different usage sce
  • In the boxSound Blaster K3+ Quick Start Leaflet Warranty Leaflets Micr
  • USB-powered from laptop, battery pack or wall socket
  • 48V phantom power drives condenser microphones for studio recording
  • Nine adjustable reverb effects with knob-controlled delay and intensity
  • Built-in soundboard clips and pitch correction from C major to B
  • Works with PC, Mac, smartphones and tablets via USB or 3.5mm jack

What the K3+ is

The Sound Blaster K3+ (SB1720) is an external USB mixer and DAC module with built-in digital effects. It connects to Windows or Mac computers and to mobile devices without driver installation. The unit draws power from any standard USB source such as a laptop, portable battery or wall adapter.

The spec that decides fit

It provides a single XLR input with 48V phantom power for condenser microphones; TRS phantom power is not supported. Line-level signals enter via 3.5mm Z and TRS jacks, while a 4-pole 3.5mm mobile port enables simultaneous playback and recording on phones or tablets.

Who this suits and who it does not

Streamers, podcasters and karaoke users who need hardware reverb, pitch correction and voice-morphing effects in a compact box will find the six operating modes convenient. Buyers who require multiple simultaneous XLR channels, TRS phantom power or multitrack USB audio output should look at a different class of interface.

How it compares

Measured against everything we stock in Audio Controls, Interfaces & Add-Ons, at today’s prices. Recalculated every night.

Price $116.99
Pricier than about 82% of the 68 comparable items (median $25.99).

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Specifications

Product
Brand nameCreative
Model nameSound Blaster K3+ (SB1720)
Size & build
Shipping weight0.74 kg
Package size203 × 193 × 71 mm
In the box
In the boxSound Blaster K3+
Quick Start Leaflet
Warranty Leaflets
MicroUSB Cable 1.5m

Questions about this item

What does the 48 V phantom power actually do for my condenser microphone?

It supplies the voltage a condenser capsule needs so you can record studio-grade audio without a separate preamp or external power supply.

What does the USB connection limit me to when I plug the K3+ into a PC or Mac?

It provides a driver-free audio link for playback, recording and livestreaming, but all processing stays inside the hardware so the computer only sees a standard stereo device.

How much desk space and cabling does the SB1720 need to sit and run?

The unit is powered by the included 1.5 m micro-USB cable from any 5 V source — laptop, power bank or wall adapter — and connects to gear via XLR, 3.5 mm TRS and 4-pole mobile jacks.

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