Spread Spectrum Technologies Son of Ampzilla II 220wpc stereo power amplifier

  Ask us about 6 months NO INTEREST thru PayPal.

Fully balanced input-to-output with full four-quadrant differential push-pull feedback from both sides of the speaker.

Double the number of power transistors per channel as the original Son

Completely servo-controlled

2000 VA power supply capacity with totally independent windings and power supplies for each channel

100,000 µfd of power supply capacitance in twin supplies isolated for each channel

Front end voltage amplifier power supplies are completely regulated

Thermal protection/auto-shutdown

Turn-on surge relay

Thick steel chassis construction, powder coat finish. Anodized aluminum front panel

Gold plated input and output connectors

"My time with the Son of Ampzilla II has been both a revelation and a privilege. I have never found such a high performing solid-state amplifier at this price point."
— Eric Neff, Hi-Fi+

“The [Son of] Ampzilla brings a burning sense of immediacy to the table—one that I don’t recall hearing from any other amplifier. When the CD ended, I realized I was breathless. It had been like I was at a concert. I wasn’t paying attention to anything except the music, but I did notice the [Son of] Ampzilla’s extremely deep soundstage and imaging to die for. The soundstage extended from around each side and from top to bottom. It was incredible."
— Ed Morawski, Positive Feedback Online
“
I had never experienced this effect with any other system. It was a continuance painted on a remarkably deep center stage. The [Son of] Ampzilla II turns out to complement all the flavors and nuance painted by the Thoebe II.
— Ron Nagle, Enjoy The Music

“
When it comes to the sound, [the Thoebe II and Son of Ampzilla II] remind me of the Ambrosia and Ampzilla 2000: the same quietness, smoothness, transparency, dynamic range, and that elusive impression of body, dimensionality, and solidity.... As found with all exceptional equipment, there is on the best recordings a gratifying impression of lifelikeness and vitality, simultaneously relaxing yet wholly involving.
— Paul Seydor, The Absolute Sound

“The Son of Ampzilla II performs at the top of its price level and above with a very neutral, near-characterless sound. I found it honors music at least as well as the Levinson No. 532h [$8,500], Parasound JC-1 [$9,000/pr.], Manley Neo Classic 250 [$9,000/pr.] or Bryston 7BSST2 [$9,200/pr.].
— Jerry Seigel, 10 Audio

SPECIFICATIONS
Power Output (per channel) 8Ω: Minimum 220 watts 20Hz–20kHz
Frequency Response 20Hz–20kHz ± 0.1 dB
THD (Awt) < 0.03% 20Hz–20kHz @ 8Ω
Full power Noise (Awt) 45µV
Input Impedance 130kΩ balanced 65kΩ unbalanced
SNR 110 dB (20Hz-20kHz)
Gain 27.5dB,  1.76v RMS for 220 watts 8Ω (either input)
Sensitivity 1.76 V
Weight 40 lbs.
Dimensions 9⅞" L x 17¼" W x 5⅝" H

We accept PayPal, AMEX, Visa, Discover, MasterCard,bank wire transfers & money orders. No charge for credit cards or PayPal.

Call 770-667-5633 with questions or to order this World Class amplifier.
GA & HI residents add sales tax.

Brands carried: Audio GD electronics, Audio GE speakers, Bluesound music streamers & servers, Core Power Technologies A/V power conditioners and cables, Denon, DSPeaker room correction, ELAC subs & speakers, Emerald Physics loudspeakers & amps, Focal headphones, Fuse Box by Swiss Digital, HifiMan headphones, Iso-Acoustics, LSA speakers headphones, turntables & electronics, Marantz Reference, Melco servers, MOFI turntables, Musical Fidelity, Music Hall, Ortofon cartridges, Project turntables, Puron line conditioners, Quad speakers & electronics, Raal headphones, Sendy headphones, Silverline Audio, SPL electronics, Sumiko cartridges, Sweet Vinyl pop & click filters, Wharfedale speakers, Wireworld cables, XSA speakers & amps, Zesto Audio tube electronics

Sales policies on the Underwood Hifi Inc. website at www.underwoodhifi.com