KWA 99 Press Release!


ModWright Instruments, Inc.

21919 NE 399th Street
Amboy, WA 98601, USA


Presenting the new KWA 99 MOSFET mono block power amplifiers, featuring compact form factor and high bias operation (Class A region) for 200W of power into 4 ohms.

June 19, 2023 – ModWright Instruments Inc., manufacturer of the award-winning KWA 150SE amplifier, PH 9.0/X/T tube phono stage and LS 300 Reference balanced tube preamp, is introducing their new KWA 99 mono block solid state amplifiers in full production. Like the best-selling PH 9.0 tube phono stage, their form factor, aesthetic, and price-point, focus on a compact enclosure and engineering to offer exceptional performance at an attractive price point.

The KWA 99 mono block amplifiers use current production Exicon Lateral MOSFETs for unparalleled sound, performance, and reliability. The enclosure design features fully exposed heatsinks to allow for high bias and lower distortion operation. 12V trigger inputs allow for whole system integration, specifically with the LS 99 tube preamp. These amps offer the sound of our best amplifiers with an even greater degree of resolution, detail, and live sound.


(1) RCA and XLR input per amp.
(1) Pair 5-way binding posts per amp.
Analog VU Meters with Adjustable brightness (bright, dimmer or off).
Toggle for internal LEDs,  (On/Off).
(1) 12V input trigger per amp.
Zero global feedback.
Class A/B operation with High Class A bias emphasis.


Power: 100W @ 8 ohms; 200W @ 4 ohms; 450W peak power.
Input Impedance: 50K
Gain: 26dB
Frequency Response: 20Hz – 200Khz.
Dimensions: 10”W x 6”H x 15”D
Weight: 29 lbs – 33 lbs shipped.

The new KWA 99 mono block amplifiers will be on active display at Pacific Audio Fest 2023 in SeaTac, WA, Suite #1351 and Suite #2203, June 23rd, 24th and 25th.

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ModWright Instruments, based in Amboy, Washington, and was founded in 2000 by Daniel Wright. The KWA 99 mono block amplifiers continue a tradition of designing high value, high performance audio equipment, proudly Hand Crafted in the U.S.A. For more information, visit their website at

If you would like more information about this topic, please contact:

Daniel Wright, CEO
Tel: +1.360.247.6688

Kristin Vittitoe, Vice President
Tel: +1.360.247.6688

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