SMSL SAP-II Headphone Amp
SMSL SAP-II Headphone Amp

“A Phenomenal Little Amp”

Ideal for driving demanding headphones, the SMSL SAP-II delivers clean, powerful sound from a compact package. It outputs 1,000 mW at 32 ohms—impressive for an amp with a footprint of just 5 by 3 inches. The black aluminum chassis is complemented by a thick front panel in your choice of colors. On the front, you’ll find a large solid aluminum volume knob, along with a quarter-inch headphone jack, a power switch, and a switch that lets you select between the 3.5-millimeter and RCA stereo inputs. One Head-Fi reviewer calls the SAP-II “a phenomenal little amp” with “way more than enough power to get the AKG K7XXs boogying at 10–11:00 o’clock on the dial with plenty to spare.”

Note: At checkout, you’ll have your choice of color: black or silver.

SMSL SAP-II Headphone Amp
SMSL SAP-II Headphone Amp
SMSL SAP-II Headphone Amp
SMSL SAP-II Headphone Amp

Color Options



  • SMSL
  • Chassis material: Aluminum
  • Standard input interface: ⅛ in (3.5mm) / RCA stereo input (with switching)
  • Output interface: ¼ in (6.35 mm) jack
  • Input voltage: 400 mV ~ 2 V
  • SNR: ≥ 105 dB
  • Distortion: ≤ 0.003%
  • Frequency response: 20 Hz–30 kHz
  • Output power: 150 mW at 250 ohms; 300 mW at 120 ohms; 1,000 mW at 32 ohms
  • Universal power supply voltage: AC 110–220V
  • Dimensions, including protrusions: 5 x 2.9 x 1.2 in (126 x 74 x 30 mm)
  • Weight: 17.6 oz (500 g)


  • DC24V Japan PSE certification power supply
  • 6.25mm ¼ in (6.35 mm) male to ⅛ in (3.5 mm) stereo audio adapter


All orders will be shipped by Massdrop.

Estimated ship date is Nov 29, 2017 PT.

After the drop ends, payment will be collected. To deliver the best value to the group the request will then be submitted to the vendor up front, making all sales final. Be sure to check the discussion page for updates.