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Our store will be closed 12/24 - 12/25 and 12/31 - 1/1. You can still place online orders. | Check us out on Youtube! | Call us at (480) 207-1511.

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Dahlquist DQ-20 3-Way Phased Array Dynamic Speaker Pair RARE

Sold out
Original price $1,499.99 - Original price $1,499.99
Original price
$1,499.99
$1,499.99 - $1,499.99
Current price $1,499.99
The Dahlquist DQ-20 is a rare three-way speaker system featuring a 10-inch woofer, a 5-inch midrange cone, and a 3/4-inch soft-dome tweeter, all perfectly aligned for crisp sound. Its clever design minimizes sound distortion by placing drivers on a tapered board, while the midrange cone uses a special duct to keep the sound clean and focused.

Hand-wired with top-notch components, it delivers rich audio from 50 to 20,000 Hz and works best with amps between 50 and 250 watts. Finished in sleek black with a light oak frame, this 60-pound beauty stands tall at 41 inches, ready to rock your listening space in style! 

🔍 Phased Array Design

Dahlquist’s Phased Array design was developed to deal with two basic areas of loudspeaker inaccuracy: time-delay distortion and diffraction effects. In general, the direct sounds from the different drivers of a multiway system arrive at the listener’s position at slightly different times because of differences in the inertia of their moving systems and unequal distances from their voice coils to their front mounting planes and from the mounting planes to the listener. The combined result of these effects can be degraded spatial definition.

CONDITION

SPENCERTIFIED- Fully certified by Spencer

Refurbished and SPENCERTIFIED

This pair of Dahlquist DQ-20 speakers is in great condition, both functionally and cosmetically. All drivers are original and fully operational, with clear, balanced output across the frequency range. The woofers deliver tight, accurate bass, while the midrange and tweeters provide detailed and natural sound with excellent imaging—true to the DQ-20’s audiophile reputation. The crossover networks are functioning properly, and the time-aligned driver array remains intact and well-preserved.

Cosmetically, the cabinets are clean with some wear on the back of the units. The fabric grills are in excellent shape with no holes or snags, and all trim pieces are present.

Cosmetic Condition: Good.

Functional Condition: Works Like New.

WHAT'S IN THE BOX?

  • Dahlquist DQ-20 3-Way Phased Array Dynamic Speaker Pair RARE
  • Speaker Wire

Other information about the Dahlquist DQ20

  • Three-way design with vertically aligned drivers
  • 10-inch acoustic-suspension woofer crosses over to a 5-inch midrange cone at 400 Hz
  • Second crossover, at 3,500 Hz, is to a 3/4-inch soft-dome tweeter
  • Nominal system impedance: 6 ohms (4 ohms minimum)
  • Frequency response: 50 to 20,000 Hz ±2.5 dB (1,000 to 20,000 Hz ± 1 dB)
  • Recommended for use with amps rated to deliver between 50 and 250 watts
  • Mounted on an integral base about 3 inches high (not including the spikes)
  • Tweeter is a Scan-Speak D2008

DIMENSIONS

  • 20.4" x 11.5" x 41.5"  (Length x Width x Height)
  • Weight: 60 lbs

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Testimonials

Spencertified is a dream for anybody looking for quality vintage electronics that can include a warranty. Relive your youth and enjoy the nostalgia of reel to reels, VCRs, Betamaxes, 8 track players, CD carousels, vintage and bluetooth stereo receivers, laserdisc players and much more. Quality brands like Pioneer, Sony, Magnavox, are in abundance. Spencer is gracious, professional, and beyond knowledgeable. Stop in for a visit you won’t regret!!Reply

Glenn John

New to the hobby. They went above and beyond I feel!! Can’t wait to make my next purchase!!

Josh J

Bought a equalizer at this place that offers older newer electronics for reasonable prices .... A blast from the past that look all new again.. met Spencer good guy who will treat you honest and fair 🤓😎....Kool I'm happy and I know you will be to... 😎

Merle musicinme

My Sony 400 disc player stopped working. I watched YouTube videos and came across this website. Since 90% of failures are the belts I decided to try to fix it myself with the help of the video. It was the belts and after installing them it works great again. I received the belts really quickly and with no prior knowledge took the case off with help from the video and installed the belts myself. So happy to have my player working again. I will always contact Spencertified for my parts and repair needs. Thanks so much. Try them, you won't be disappointed.

Henry Nash

Spencer and Amy helped us find 40 or so speakers to build a wall out of them at a restaurant and were super helpful finding and loading up all of the speakers. The wall turned out great and would definitely recommend them for anything sound!

Tommy Sims

A very nice outfit to do business with; Product was just what I was looking for, ( am/fm tuner) reasonably priced, nice friendly correspondence with Amy, they've got it all, I'll likely be back sooner than later... Thanks folks!

Jeffrey Jordan

Awesome service, helped me find what I was looking for. Knowledgeable and hooked us up!

Micah Murray

Awesome! I love this place, the guy is really nice and has amazing stuff. Great deals, best in the valley by far.

Thomas McEntire

SPENCERTIFIED IS PERFECT FOR ME!
I JUST GOT WHAT I WANTED FROM FRIENDLY UNDERSTANDING SOUND PEOPLE!
Visit this shop for sweet deals on receivers, multi-disc CD players, turntables and all of your stereo and surround sound speakers and components.(they had many options, new stuff and older vintage too.)
REALLY! It was cool to do business with honest people who listened and gave me just what I was looking for. I asked a lot of questions about equipment and was shown different options, and, different prices, straight forward and honest.

Phil D

Spencer was super helpful and knowledgeable when I visit him. I experienced a slight issue with some hardware and he was more than willing to make it right. As a nice gesture he gave me a slight upgrade to the equipment I was purchasing. He’s very reasonable and enjoyable to work with! Highly recommend!

VSefcovic

Spencer is extremely knowledgeable and the selection is vast. GO down there! You wont be sorry!

EV B

A SpenCertified Short Film

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