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HP205D Headphone Amplifier - HP205D

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(From 2 Reviews)

Intro

Paul Rigby from the excellent website www.theaudiophileman.com has recently reviewed the HP205D and given it fantastic feedback. You can read the review at the following link:-

https://theaudiophileman.com/hp205d-head-amp-from-icon-audio/


This 205D Headphone Amplifier was also awarded Headphone Amplifier of the Year 2021 by the leading Hi Fi magazine  Hi Fi World.
 


Directly Heated Triodes bring you closer to the music


W.E. 205D-L or 300B Directly Heated Triode
Pure Valve Circuit
Impedance matching 16 to 600 Ohms
Single Ended Design
Valve rectifier
Bluetooth Option
205D Upgrade option
Capacitor Upgrade Option

SKU:

HP 205D
Downloads

View PDF HP205D Product Leaflet.pdf View PDF HP 205D BT User Manual.pdf View PDF HP205D Review HFW_Sep21.pdf

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We believe that Directly Heated Triodes bring you closer to the music!

Many audiophiles have discovered that a simple well designed valve amplifier can give greater purity and intimacy than more complex solid state designs. This is especially true of headphone amplifiers and the 1920s W.E. 205D is about as simple as a valve gets! Taking inspiration from our award winning HP8 headphone amplifier, and the remarkable WE 205D valve, we have designed a deceptively simple amplifier which has surpassed even our own expectations!

The 205D is a Directly Heated Triode designed by the Western Electric Co in the 1920s and is probably the oldest design in current production! As a small power output valve it has excellent qualities for headphone use, being very linear in operation and low impedance. High end headphones can be very revealing and can sound clinical and overly bright with some amplifiers. Sonic presentation with the 205D and our output transformers has the highest definition and incredible dynamics but in nice way! More vivid and warmer sounding. Completely free of fatigue.

Headphones have the ability to convey incredible detail and insight into a recording so careful circuit design is called for. Like any valve amplifier the output transformers are crucial to the final quality and our own custom designed and wound transformers play an important part in this. Also an advanced design using Directly Heated Triodes such as this demands the highest quality power supplied by outboard power supply using a time honoured valve rectifier and choke circuit.

Although less than one Watt is needed to power headphones, we have taken the same care and attention to detail that is essential for any “high end” design, every component is chosen carefully to avoid negatively influencing the ultimate sound quality. As in our other designs the HP205D is hard wired throughout (without printed circuit boards) not only for better sound quality by using full size components and easier upgrades but for easy future service.

The 205D is driven by the post war ECC88, highly regarded for its neutral sound and complements the 205D technically and sonically.

The HP205D may be used as a stand-alone unit or as part of a hi fi system. The optional Bluetooth receiver make the HP 205D very versatile in use.

Specifications and Features

  • Built in Bluetooth option
  • All hand wired point to point
  • No printed circuit boards
  • Japanese Blue ALPS volume pot.
  • Class A, all Triode circuit
  • Headphones impedance matching from 16 to 600Ω
  • Can be fitted with 2 x 300B, or:
  • 2 x Psvane 205D-L (upgrade)
  • 2x ECC88/6922/6DJ8 input valve
  • 274B or GZ34/5AR4/5R4 rectifier option.
  • Signal to noise level -90db
  • Freq response better than 20hz-20kHz +0 –0.2db
  • High quality oversize resistors
  • SCR audio capacitors or Mundorf upgrades available
  • Custom hand wound output transformers
  • Ceramic valve holders with gold plated sockets (205D)
  • Silver plated copper PTFE audio cable
  • Gold plated Input/outputs
  • Loop through facility, ideal for

pre/power amps.

  • 350mv input sensitivity for full output
  • Comprehensive manual supplied
  • 230/240volts 36 watts.
  • 16cm W, 27 D, 16 H, 7kg
  • Carton 37Wx27Dx30H 7.0 kg
  • C E, ROHS and WEEE compliant

(Provisional specifications subject to change)

Reviews
Click To View A Larger Image

Paul Rigby owner and creator of the excellent Hi Fi website www.theaudiophileman.com has recently give the HP205D a fantastic review, you can read this at the following link:- https://theaudiophileman.com/hp205d-head-amp-from-icon-audio/

Click To View A Larger Image

Our top fo the range headphone amplifier the HP205D has just received an excellent review in the September 2021 edition of Hi Fi World. Webmaster Icon Audio

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(From 10 Reviews)

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