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Icon Audio LA4 MkIII Valve Pre Amplifier

 

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Enquiry/price check? Click here SKU: 7236
Ex VAT: £1,332.50
£1,599.00
A very high quality yet affordable line pre-amplifier featuring Icon Audio's customary impeccable build quality. Ideal for virtually any type of power amplifier.

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Features

Warranty length 1 Year
Brand Icon Audio
Product Award HiFi World 5 Globes

Tech Specs

- Comprehensive manual supplied
- Full instructions for valve change included
- All hand wired point to point
- No printed circuit board to ‘colour’ sound
- ALPs Blue motorised volume pot.
- All Triode design
- 3x 6SN7 valves
- 274B Valve rectifier (also use GZ34/5AR4/5R4)
- Double Choke HT supply
- DC heater supply
- Signal to noise level -90db
- Freq response 20hz-20khz +0 – 0.1db
- Total harmonic distortion typically <0.1%
- Gain x4, 12db#
- Max input level 5v for 20v output#
- Very low output impedance of 100Ω#
- Suitable for power amps 100mv-5v sensitivity
- Attractive valve cover available (£50 extra).
- Quality 2w metal film/wire-wound resistors
- Solen/SCR audio capacitors (Jensen upg)
- Silver PTFE audio cable
- Gold plated Input terminals
- Four line inputs
- Tape monitor circuit and record output
- 220/240volts 100watts
- C E compliant
- 250W, 370D, 230H (with 274B and cover)
- 175H with GZ34 (no cover) 12kg packed

Product Description

The Icon Audio LA4 MkIII pre amplifier replaces the LA2 MkII and is a line pre-amplifier of outstanding quality. Building on the success of the earlier marques, the LA4 MKIII has improved cosmetics and an upgraded circuit. Now with lower feedback and lower gain the macrodynamics and soundstage are enhanced.

A deceptively simple high quality single stage design followed by an output buffer. But what makes the LA4 MkIII special is the power supply and “finely tuned” design. A high end pre amplifier must have the best power supply.

The LA4 MkIII has two chokes in double Pi configuration for well conditioned power giving superb smoothing for velvety inky black silence. The rectifier valve, which makes a surprising difference, is the excellent 274B. This outstanding Western Electric design is probably the best sounding power valve available.

The three audio valves we use are the 6SN7 double triodes. This 1940 vintage valve has all the best characteristics for the job, and its larger size means long life and good stability. Also the sound is more musical as we feel these have a more fluid sound. You can experiment with both vintage and modern types.

Like all of Icon Audio's equipment, the LA4 MkIII is very solidly made. It has a heavy alloy and steel chassis. The internal wiring is all “point to point”, “hand wired”, this is essential for valve amplifiers, and allows for upgrading to larger capacitors, and makes future servicing very simple. A very fine pre amplifier indeed.

Press Reviews

  • "Uses early 6SN7 triodes for liquid sound, has plenty of gain and remote control." (Hi-Fi World Magazine World Standards)

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Contact Details

UK Local Rate Number
0844 50 403 50

Sales Landline
0121 224 7300/7401

Customer Services Landline
0121 224 7350/7351

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