Capture your creativity with the Quantum ES 4. The next generation of PreSonus audio interfaces, the Quantum ES 4 is the culmination of nearly 30 years of PreSonus expertise, providing the ultimate recording tool for musicians and content creators.
FEATURES
- High Performance Signal Flow – Custom low-latency drivers and low-noise converters.
- All-New MAX-HD Mic Preamps – The culmination of 30 years of innovation, our rigorously redesigned preamps feature digitally-controlled analog with +75 dB of gain range.
- Co-Developed with Fender® – Front-facing instrument inputs engineered for guitarists by industry-leading experts.
- Professional Recording Software Included – 6 months of Studio One+ with full access to Studio One Professional Edition, add-ons, and more.
- Auto Gain – Dial in recording-ready levels, hassle-free.
- Universal Control App – Full control and metering from your mobile device, desktop, or tablet.
Outputs
111 dB (A-Weighted)
20 Hz to 20 kHz, +/- 0.2 dB (Unity Gain, Reference 1 kHz)
22 Ohms
7.5 dBu (50 Ohms)
0.02% (1 kHz)
117 dB (A-Weighted)
20 Hz to 20 kHz, +/- 0.1 dB (Unity Gain, Reference 1 kHz)
+15 dBu (Balanced)
51 Ohms
0.001% (1 kHz, +4 dBu)
1/4″ TRS Female
Inputs
111 dB (A-Weighted, Minimum Gain)
20 Hz to 20 kHz, +/- 0.2 dB (Unity Gain, Reference 1 kHz)
75 dB
+15 dBu (Unbalanced, Minimum Gain)
114 dB (A-Weighted, Minimum Gain)
20 Hz to 20 kHz, +/- 0.1 dB (Unity Gain, Reference 1 kHz)
+/- 10 dB
10K Ohms
+15 dBu (Balanced, Minimum Gain)
0.001% (1 kHz, Minimum Gain)
XLR Female (Combo), Balanced
113 dB (A-Weighted, Minimum Gain)
-129 dBu (Maximum Gain, 150 Ohms, 22 kHz BW)
20 Hz to 20 kHz, +/- 0.2 dB (Unity Gain, Reference 1 kHz)
75 dB
1600 Ohms
+14 dBu (Balanced, Minimum Gain)
0.001% (1 kHz, Minimum Gain)
Electronics
Two – 1/4″ TRS Female Stereo
USB-C®
+48 VDC
Performance
24-bit
120 dB
44.1, 48, 88.2, 96, 176.4, 192 (kHz)

ERNIE BALL MALE CONNECTOR PLUG
YAMAHA C6X DISKLAVIER POLISHED EBONY
TAYLOR 814CE
YAMAHA LL16L ARE
YAMAHA BB 234 VINTAGE WHITE
YAMAHA GC1 DISKLAVIER PWH
DADDARIO ACCESSORIES 50JS02 JOE SATRIANI STRAP UP IN FLAMES
STAGG SOPRANO UKULELE US-TIKIOH
YAMAHA MOUTHPIECE BRUSH (S)
GIBRALTAR SC-DTK DRUMMERS TECH KIT
KLOTZ LY240 2X4,0MM SPEAKER CABLE BLACK PRICE PER METER
YAMAHA C1X DISKLAVIER POLISHED EBONY
GRETSCH G9110-L LONG NECK CONCERT UKULELE
FENDER KNOBS SOFT TOUCH VOL + TONE
YAMAHA APX 700II BL
GRETSCH G9110 CONCERT UKULELE
PRESONUS REVELATOR IO 44 USB-C COMPATIBLE AUDIO INTERFACE
YAMAHA TRBX 174EW NATURAL
YAMAHA PACIFICA 311H VINTAGE WHITE ELECTRIC GUITAR
SHURE SRH840A-EFS
DADDARIO ACCESSORIES PREMIUM GUITAR MAINTENANCE KIT
STAGG US30 SOPRANO UKULELE MAHOGANY WITH BAG
IBANEZ RGA42FM BLF BLUE LAGOON BURST
YAMAHA CPX 700II SB
M-AUDIO MICRO DAC 24/192 