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RAAL-requisite at Audio46


5 year warranty

RAAL-requisite HSA-1b Amplifier


Regular price $4,500.00 Sale Save $-4,500.00 (Liquid error (sections/product-template.liquid line 200): divided by 0% OFF)

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Product SKU: HSA-1b

Only 1 left in stock
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Order today for shipping on Monday.
Receive FREE U.S. shipping with estimated delivery
between Wed, Feb 08 and Thu, Feb 09
Order today for shipping on Monday.
Receive FREE U.S. shipping with estimated delivery
between Wed, Feb 08 and Thu, Feb 09

Ⓧ Not available for shipping outside the U.S.

General 30 Day Return/Exchange Policy
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Product Details from the Brand

Any mention of "us," "we," "our," etc is by RAAL-requisite, not Audio46

Headphone & Speaker Amplifier.

Direct drive amplifier for True-Ribbon Earfield Monitor headphones, speakers, conventional dynamic, and planar magnetic headphones.

Switch Drive.

Drive the SR1a, conventional headphones, or speakers.

Input Options.

Unbalanced, Single-Ended RCA. True-Balanced, XLR.

24 Step Attenuator.

Precision 24-step attenuator for rock-solid left/right balance at all listening levels.

In the box

  • HSA-1b amplifier
  • HSA-1b power cable
  • Adaptor for low-efficiency headphones

HSA-1b - Headphone/Speaker Amplifier Specs

Load Impedance: 0.3 Ohm – infinity
Output Power (one channel driven): 10W /8Ω, 20W/4Ω, 40W/2Ω, 55W/1Ω @ 1khz/sine
Ribbon & Headphones Drive: RAAL-requisite SR-1a, Dynamic & Planar Magnetic
Speaker Drive: 8Ω, 4Ω, & 2Ω Loads
Freq. Response: 100mv/ in/sin. 15hz – 500kHz
Power Bandwidth: 100kHz (-3db) at 1khz
Distortion: < 0,5% at 1khz
Signal to Noise Ratio: Better than 90dB
Input Impedance: 40 kOhm
Sensitivity: 0,5V /40kOhm
Input: IN1- 2 RCA, IN2 – 2 XLR
Max Power Consumption: 150W , without signal 25W
Dimensions: H 90, W 218, D 320mm (3.54 x 8.58 x 12.60 inches)
Weight: 5,3kg (11.68 pounds)
Selectable Mains Voltage: 115/230V (100V available for Japan)
Warranty 5 years

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