Raal Requisite SR-1b Review

Raal Requisite SR-1b

Specs, Price & Accessories

Motor

Hand Calibrated: Triple Measured, Matched Pair

Viscodamp™: “Silent Metal” Viscosity Dampening

Compremag™ Magnet System: Compressed Homogeneous Field 

Symmlead™: Ultra-Low Inductance Air-Loop Tracing      

Ribbon Cartridge: Toolless, Field Replacement

Type: Corrugated Pure Aluminum

Length: 4.0-inches / 100 mm    

Width: 0.75-inches / 19 mm

Excursion: +/- 3.75 mm                                                     

Moving Mass: 0.06 gram

Nominal Impedance: 0.02Ω   

Nominal Impedance with SC2 Cable: 0.25Ω

Nominal Impedance with Star-8 Cable: 0.25Ω  

FreeAir Resonance (new): 40Hz    

FreeAir Resonance (after break-in): 20Hz ~ 100 hours

Maximum SPL: 111dB

Price: Starting at $3,000 USD

Body

Material: Carbon Fiber

Finish: Epoxy

Grille: Etched

Headspring: Bead Blasted Stainless Steel

Height Adjustment: 5-Position Leather Band  

Upper Pads (washable): Lambs Leather Suede, Memory Foam

Input Connectors: High-Current 3.5 mm TRRS Female Connectors

Total Weight: 426g

Amplifier Interface Set (optional)

TI-1b/OB: Transformer Interface – Toroidal Transformers 16Ω & 32Ω

SC2: Headphone Cable – 1.75M / 5’9” (fixed length) Dedicated Headphone Cable

ITI-XLR: Interface Cable (for HP Amp) – 35cm / 13” – 4-pin XLR / 4-pin XLR

OB Balanced: Open-Baffle Compensation Barrel – 3-pin fm/XLR to 3-pin m/XLR

OB Single-Ended: Open-Baffle Compensation Barrel – fm/RCA to m/RCA

Power Requirement (Minimum): 2W@16Ω or 2W@32Ω

Power Requirement (Maximum): 25W@8Ω (6W@32Ω)

High-Power Amps: Tested to 350W Permissible with Careful Volume Adjustment

 

Page 1: Intro, Raal Requisite, SR-1b, Ribbon tech, What you need, Box & Delivery, Build quality & Design & Comfort

Page 2: Sound Intro, Sound Setup, Sound General, Sound Classics, Sound Synergy Pt. 1

Page 3: Sound Synergy Pt. 2, Conclusion, Summary

Page 4: Technical specifications 

 

4.2/5 - (131 votes)
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Lieven is living in Europe and he's the leader of the gang. He's running Headfonia as a side project next to his full time day job in Digital Marketing & Consultancy. He's a big fan of tube amps and custom inear monitors and has published hundreds of product reviews over the years.

3 Comments

  • Reply September 1, 2023

    Mr Craig Pollock

    Great Review! I came down to CanJam london 2023 specifically fo hear these headphones and i was very impressed ( listened on the RME ADI-2 DAC fs too, which i have) but it was just too noisy in the Hall to really appreciate them.
    The CA-1a offered more protection from ambient sound and sounded excellent even with the general CanJam hubbub enveloping me . Danny McKinney was really helpful and we talked music and recording music (Danny used to build mixing desks) and for the type of music i liked (live Jazz, small Jazz combo’s) he suggested the SR-1b would be the best fit. So I’m going to book an appointment with Hifonix to listen to them in a much quieter environment and hopefully hear them on the Cayin HA300 which is on my List and it may have to wait another year if i go for the Raals first.

    I am hoping for good things with the Cayin HA 300 especially when you give the HA 3 the thumbs up even if its a bit underpowered with the Raal’s.

    • Reply September 6, 2023

      Lieven

      Thank you! Insider info, I recommend to hold off that purchase for a few weeks
      SR-1b and CA-1 are both awesome though

  • Reply October 1, 2023

    OffRamp

    Another fine review.
    Here’s where I am, second headphone rig setup.
    I like flexibility and the first rig has three amps connected to it.
    The second rig has N8II, Denafrips Venus II, for the I2S input. [ I know you feel me ].
    Because of money Woo Audio WES amp, cause I purchased the Stax limited editions on impulse. (I really wanted a Blue Hawaii) after research. Too late tho. I can still run another amp into this setup like the first. No more solid state amps it will be tube. That I haven’t decide yet. The third amp setup for this headphone? You make a convincing argument for the topic headphone.
    339 on first rig still too good once those tubes get hot… you make reading around expensive.

    Still in the background
    Still reading around

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