LSA Amplifiers

 

They sum with: "The LSA VT70 is the perfect amp at the perfect price, whether investigating high - performance audio for
the first time, taking your first spin with a tube amplifier, or perhaps looking for a great second system. It’s musically satisfying,
aesthetically pleasing, and gets the job done."
Highly recommended.
#toneaudioapproved

Specs

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: 51 pounds

Amp weight 46 pounds

Power Consumption: 230W,

Tubes used: 12AX7*1, 12AU7*2, EL34*4

 

It comes with KT88 tubes standard

The VT-150 is a stereo KT-88 based tube power amp that puts out 80 watts per channel in hi bias mode of 60 in low bias. It can be strapped into mono and doubles in power to 160 watts. It has a front panel volume control for use in a biamp system to level match amplifier to a second amp. It has front mounted input switching between RCA and XLR inputs. It can also be used as a 2 input integrated amplifier. Run a phono stage into the RCA ins and DAC into the XLRs.

In the July 2023 Sound Advocate review they said:
"Eventually, I started thinking to myself at its retail price of $2299, vs. the Allnic, currently selling at approximately $7950, this is one of the few tube amplifiers I have heard that can take on much more expensive solid state as well as tube units in the current high-end marketplace."

Read it here: https://www.thesoundadvocate.com/2023/07/lsa-vt-150-stereo-tube-amplifier-appraised/

In the secrets review they said:
"At $2995.00 this tube amp compares in specs and in sound quality with higher priced tube amps, some selling for 2 to 3 times the price. Currently, as the amp is being introduced, it is selling for $2499.00 making it an even better deal. I heard the amp driving different sets of speakers, on a variety of program material. It’s dead silent when it is not playing anything, and when it is playing music, it is silky smooth with an excellent low end. The mid-range is engaging, and while I was pretty neutral on tube amps before I auditioned this amp, you’ll now find me enthusiastic."

Read it here: https://hometheaterhifi.com/reviews/amplifier/integrated-amplifiers/lsa-vt-150-80-wpc-power-amplifier-review/

In the Tone audio review they said:
"Tracking through a wide variety of different music is a joy with the VT-150. It is dynamic enough to play classical music or heavy rock as loud as you need yet offers great linearity at lower volumes. Even listening to the CSN debut album on MoFi at very low levels with the Dynaudio Confidence 20s is incredibly engaging. Yet cranking the volume way up for some Public Enemy and Slayer proves it delivers the goods"

In addition to having solid, controlled extension on both ends of the frequency scale, this amplifier can generate a large sound field in all three dimensions. There’s a lot of “vacuum tube magic” going on here, to be sure."


They summed with:
"And, putting a $2,500-$3,000 amplifier in the context of the $7,500 to $15k system it is more than likely going to end up in will leave you thrilled with the purchase. If you’ve been dreaming of investigating a tube amplifier, I can think of no better place to start your journey.  For now, staffer Jerold O’Brien will be using this one on a daily. His daughter took the VT-70, so how can you argue with that?"

Highly recommended.

Read the review here: https://www.tonepublications.com/review/the-lsa-vt-150-integrated/
 

Front plate shot

In the July 2023 Stereophile Warp-1 got a great review. They said:
"There are two ways to think about the LSA Warp-1. You could think of it as a category killer, a great sounding amp at a bargain price, Class D finally bought to fruition for almost all budgets. Or you could think of it as a low risk, high reward way for an open-minded skeptic to give Class D a try"
"The phone number on on Underwood Hifi's website gets you right to Walter Liederman. Talk to him about an in-home trial, but be forewarned : Your ears old ideas about Class D amps may be proven wrong, and your mind may be changed."

TAS Sept 2023 Best Power Amplifiers: $1,000 – $3,000

TAS 2022 Product of the Year

In the Oct 2022 The Absolute Sound review Steven Stone summed with:
"Given its rather modest price of $1495, you might be tempted to write off the Warp One as just another me-too, mid-fi Class D power amplifier. That would be a mistake. I have, over the years, listened to plenty of Class D power amplifiers…so far, the Warp One is the best-sounding one I’ve reviewed. If you have loudspeakers that are at least reasonably efficient (or better), and you have no need to warm up their sonic personality, the Warp One power amplifier could be an excellent and exceedingly rational choice as your next reference power amplifier."
Read the review here:  https://www.theabsolutesound.com/articles/lsa-warp-1-power-amplifier/


In their recommend products 2023 write up Part Time Audiophile said:
"Another class D amplifier that made us seriously reconsider how we felt about Class D power amplifiers, the Warp One delivers 150 wpc into 8 ohms and 250 into 4 ohms, sounds like a “compact powerhouse” and still weighs next to nothing. The LSA’s deepest bass performance was impressive and unique–it sounded tight and controlled and always honest.
A Reviewers Choice Award winner."

In the Secrets review they summed with:
The LSA Warp 1 is also a lightweight, cool-running amp that is perhaps the best value in stereo amps at this time. You can’t go wrong, especially at the current sales price of $1,199 delivered! Recommended.
Read the review at: https://hometheaterhifi.com/reviews/amplifier/power-amplifier/lsa-electronics-warp-1-stereo-power-amplifier-review/
Named Amplifier Product of the Year by Part Time Audiophile