KRK Rokit 5 G4 from an iPad Pro: will the USB-C port feed the Volt 276?
The iPad Pro 11 (M5) port is rated 15 W and the Volt 276 draws 5.0 W at most — 10 W of margin. The ports that fall short are the 4.5 W phone ports, and they fail as dropouts, not as silence.
Signal Chain Compatibility Matrix
Select gear and parameters for live gain, impedance and SPL calculations.
Input Equipment Setup
PASS: Optimal Signal Chain
Requires minimum +60dB of clean pre-amp gain. Most budget entry interfaces max out at +50dB to +56dB and introduce hiss at max pot. An inline preamp booster (Cloudlifter CL-1 / FetHead) is strongly recommended.
The interface preamp provides sufficient headroom.
$538
$405
-25%Tonal & acoustic characteristics: Flat, wide-range frequency response for clean music and speech. Smooth, warm acoustic character with air-suspension shock isolation.
Technical advisory: With +69dB max gain, the Gen 4 Solo can drive demanding dynamics like the Shure SM7B natively without requiring an external inline booster.
Physical Interconnect Topology
Shure SM7B
Direct Cable Connection (No Intermediate Box)
1x Shielded Balanced XLR Cable (3-Pin XLR Male to XLR Female)
Focusrite Scarlett Solo (Gen 4)
Host: Apple MacBook Pro (M1/M2/M3/M4)
Yes, with room to spare: the iPad Pro 11 (M5) USB-C port is rated 15 W and the Volt 276 draws 5.0 W at maximum — 10 W of margin. Apple's Accessory Design Guidelines give the Pro 3.0 A and the iPad Air 11 (M3) 1.5 A; the Air's 7.5 W still clears the Volt, but with 2.5 W of headroom rather than 10, and that is the margin a hub, a drive or a charging cable on the same port eats first.
The monitors are not the difficult part. The Rokit 5 G4 has its own amplifiers and takes a balanced line signal on a combo XLR/TRS jack rated 5.12 kΩ. Nothing here goes to speaker terminals, ever — there would be a power amplifier at both ends of that cable, and joining them is a topology error, not a matter of sound quality.
Bus power actually runs out on phones. An iPhone 16, a Pixel 10 and a Galaxy S25 all supply 4.5 W — 0.5 W short of the Volt's 5.0 W maximum, yet comfortably above the 3.5 W it typically draws. That gap is precisely why the failure is not silence, which would at least be honest: the interface works until demand rises, then clicks and drops out, and people spend weeks blaming drivers and buffer sizes. USB-A hosts are further away still: a FiiO R7 is rated at the USB 2.0 floor of 500 mA / 2.5 W, a Raspberry Pi 5 allows 600 mA / 3 W.
If it drops out: run the Volt from its own supply and let the port carry data only, or use a powered hub. On the iPad Pro — or a MacBook Air 13 (M5), also 15 W — bus power is not your problem, and the fault is somewhere else.