B² Audio REF FOUR
SKU: 73821904060

B² Audio REF FOUR

Sale price$359.55 Regular price$399.50
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

B² Audio REF FOURDer B2 Audio REF FOUR ist ein robuster 4 Kanal Fullrangeverstrker der Class A B Topologie und fr anspruchsvolle Audiophile Hrer, die Wert auf Klangqualitt, Headroom und Flexibilitt legen. Mit einem breiten Frequenzgang von 15 Hz bis 25 kHz liefert der REF FOUR eine saubere und kontrollierte Wiedergabe ber das gesamte hrbare Spektrum. Er verfgt ber fortschrittliche Frequenzweichenoptionen, Bass EQ Boost und ein Monitoring System mit Clipping Anzeigen.


Der B2 Audio REF FOUR ist ein robuster 4-Kanal Fullrangeverstärker der Class-A/B-Topologie und für anspruchsvolle Audiophile Hörer, die Wert auf Klangqualität, Headroom und Flexibilität legen. Mit einem breiten Frequenzgang von 15 Hz bis 25 kHz liefert der REF FOUR eine saubere und kontrollierte Wiedergabe über das gesamte hörbare Spektrum. Er verfügt über fortschrittliche Frequenzweichenoptionen, Bass-EQ-Boost und ein Monitoring-System mit Clipping-Anzeigen. Mit einer Leistung von 4 x 300 W RMS an 2 Ohm oder 2 x 1200 W RMS gebrückt an 4 Ohm eignet sich dieser Verstärker sowohl für den täglichen Gebrauch als auch für professionelle Anwendungen. Seine robuste Bauweise, die 50mm²-Stromanschlüsse und das effiziente Layout machen ihn zur ersten Wahl für High-End-Installationen.


Spezifikationen:

Modell: REF FOUR
Schaltung: Class A/B
Frequenzgang: 15 Hz – 25 kHz
Signal-Rausch-Abstand: >90 dB
Eingangsempfindlichkeit: 6 V – 0,3 V
Frequenzweiche: 24 dB/Octave
Lowpassfilter: 40 Hz – 400 Hz
Highpassfilter: 40 Hz – 4 kHz
Bass-EQ: 45 Hz / 0–12 dB
Stromanschluss: 0 Gauge / 50mm²
Sicherungempfehlung: 150 A
Abmessungen in mm: 471 x 160 x 64

Dauerleistung (RMS) bei 14,4 V und 1 % THD:
4 Ohm: 4 x 200 W RMS
2 Ohm: 4 x 300 W RMS
4 Ohm gebrückt: 2 x 1200 W RMS


Anforderungen an die Stromversorgung:
Mindestbatterie (AGM): 75 Ah / 1000 CCA
Lithiumbatterie: Mindestens 20 Ah

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 73821904060

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4.9 ★★★★★
Based on 1692 reviews
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Eric Dahlquist
West Palm Beach, US
★★★★★ 1
Misinformation!
Color: Dark Black, Color: Dark Black
Be aware that this does NOT ship with a class 4 gas lift. The whole reason I bought this chair was because it shows in the advertising this comes with a class 4 lift. Have contacted the seller and gotten the "we have a 1 year warranty" line. I am in the 300+ lb weight class. I have had many MANY other class 3 lifts and I know it will work as intended for about 2.5 years, and then it will slowly fail and not be able to stay up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
R
Verified Purchase
Rachel Hartley
New York, US
★★★★★ 4
Not strong enough
Color: Dark Black
It is okay , wish it was more sturdy, However, for the price it is okay.
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Reviewed in the United States on April 18, 2026
E
Verified Purchase
Eustace
Alexandria, US
★★★★★ 5
Nice and Sturdy. Great quality
Color: Dark Black
This a very well built sturdy chair. It was easy to put together and it came very fast in the mail. I have had 2 other office chairs made by other compaines and they were nice but they both seemed a little loose and not solid enough. they all lasted less than an year. This one is solid, well built and will likely last a lone time. It is easy to adjust also. Its nice and wide also.
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Reviewed in the United States on April 25, 2026
A
Verified Purchase
Angel Perez
New York, US
★★★★★ 5
Great value
Color: Dark Black
Great size and comfort. Very fair price for the quality of the piece. I like the back support and mobility.
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Reviewed in the United States on May 18, 2026
P
Verified Purchase
Paige Donovan
Chelsea, US
★★★★★ 5
Great find!!
Color: White Rose Velvet, Color: White Rose Velvet
This thing rocks. I hope it lasts longer than my last gaming chair bc it was double the price. It arrived days earlier than estimated, is soft, comfortable, and really pretty. I did not love the instructions, but I figured out assembly without too much trouble. It reclines without falling over and goes up and down smoothly. My cats immediately love it, so I’m really happy! Let’s hope it withstands longevity.
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Reviewed in the United States on June 7, 2026

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