In Barn for Review: LSA VT-70 Integrated Tube Amplifier

Vacuum tubes and meters. Oh happy days.

The Living Sounds Audio (LSA) VT-70 Integrated Tube Amplifier offers 35 Watts of Class A/B output power from a quad of EL34s.

There are 3 line-level RCA inputs and Pre Out for use with a subwoofer or external amplifier. As you can see, binding posts for 4 and 8 Ohm taps are provided.

The output tube’s bias is adjusted manually using the top mounted controls in conjunction with those beautiful bouncy meters up front. There’s also a headphone amp with a front panel mounted 1/4″ jack.

A 12AX7 and pair of 12AU7s run the input and driver stages, and all of the included tubes bear the LSA brand badge. LSA is an in-house brand of distributor and dealer Underwood HiFi, founded by 50-year+ industry veteran Walter Liederman.

Vacuum tubes and meters. Oh happy days.

LSA VT-70 Integrated Tube Amplifier
$1399.00 | Intro priced at $1299.00


Power Output: 35W + 35W (RMS 8 ohm)
Ultralinear design, Class A/B
THD: 1% (1kHZ)
Frequency Response: 20Hz-40kHz
Input Sensitivity: 200mV
Input Impedance: 100k Ohm
Output Impedance: 4 ohm, 8 ohm
S/N Ratio: 88dB
G.W shipped: 48 pounds
Amp weight 46 pounds
Power Consumption: 230W
Tubes used: 12AX7*1, 12AU7*2, EL34*4
Size: 14.75″w x 8.85″h x 11.5″d
2 year warranty and 6 months on tubes

Company Website: Underwood HiFi