Audio Analogue ABsolute Line Preamplifier

Code: AA-ABPRE
  • £20,000.00
  • (FREE UK Delivery)
Usually dispatched within 24 hours
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Building on the expertise gained from developing preamplifier sections in our recent amplifier models, ABsolute represents the pinnacle of our preamplifier concept: the true heart of any amplification system.

A reference preamp in the Hi-End audio market, ABsolute excels in design, technology, and sound performance.

Key Features:

  • 3 x stereo RCA inputs, 2 x XLR balanced stereo inputs
  • 2 x stereo RCA outputs, 2 x XLR stereo outputs.
  • Zero global feedback from input to output.
  • Inductive power supply with electrostatic shielding, magnetic shielding and resin coating.
  • Solid Aluminium remote control included.

This design features an inductive power supply optimized to minimize main noise, supported by two 50W transformers with electrostatic shielding, magnetic shielding, and resin coating. It employs zero global feedback from input to output in a fully differential circuit with differential input and output for optimal signal integrity. Each stage is isolated on separate boards, following a fully dual-mono configuration powered independently from the supply. The preamp boards are mechanically shielded from the power supply section to reduce interference.
A relay-based volume control significantly improves distortion over semiconductor controls, thanks to the high-quality resistors used. The relay input switches minimise non-linearities and disconnect unused inputs. The gain stage features SeGeSTA technology, and oversized military-grade resistors minimise thermal distortion. Audiograde capacitors further enhance performance. The system offers three stereo RCA inputs, two balanced stereo inputs, two stereo RCA outputs, and two XLR stereo outputs, all managed by a microcontroller. Internal wiring and power cables are from Airtech for superior signal and power transmission.

Amplifier Specifications:
Signal-to-noise ratio Attenuation at 0dB, A weighted, referred to 1Vrms 93.8dB(20Hz – 80kHz)
Attenuation at 0dB, A weighted, referred to 1Vrms 98.3dB(20Hz – 22kHz)
Attenuation at 0dB, A weighted, referred to 1Vrms 102.3dB(A weighted)
Input impedance 47 kΩ
Gain Unbalanced output: 5.58 dB
Balanced output: 11.62 dB
Noise Balanced Output Noise: Band limits 20Hz-80kH 20.4µV
Balanced Output Noise: A-weighted 7.7µV
Weight 22kg
Dimensions 140 x 480 x 385mm

We endeavour to despatch same day for orders placed up to 1pm on available stock items (items with stock message "Usually dispatched within 24 hours"). Please remember to check with us first for a physical stock check if next day delivery is important to you. Any items with stock message "Usually dispatched within 72 hours" are items that we do not hold in stock but order in from the importer or manufacturer as soon as a customer order is received. Occasionally these may be delayed beyond 72 hours due to importer/manufacturer stock levels but we will inform you as soon as we can if this is the case.

UK Orders

We despatch the bulk of our UK mainland items on a 24 hour service – Free of Charge.  Non Mainland locations - Isle of Man, Isle of Wight, the Scilly Isles, the Scottish highlands and Islands, the Channel Islands and Northern Ireland may take a day or so longer and are not Free of Charge. Smaller items are delivered using Royal Mail 24 or special delivery. Larger items are delivered using a courier service such as DPD or UPS.

International Orders:

Due to the nature of our products and brand restrictions we are only able to send certain items internationally. Smaller items are delivered using Royal Mail Small Packets Airmail with International Tracked and/or Signed depending on value of item and availability of the service. Larger International shipments are sent by insured and tracked services using UPS. If there are any delays due to specific customs regulations, etc, you will be contacted by Hifisound or by the courier with a request for any further information required. Customs duties can apply for shipments to any countries outside of the UK depending on where the product you have bought is made. Customers are responsible for all taxes and duties incurred when the items enter their country.

Collect in Store or Home Install

At the request of the manufacturer some items cannot be supplied by mail order but you can click and buy them and then elect to collect them from our store or arrange a home install (if applicable). Applicable items clearly state that they are Collect in store or home install. Once ordered you will receive a message prompting you to contact us by phone or email to arrange for us to deliver and install or to reserve and collect from our store at your convenience, you will also be advised of the delivery time / stock availability as not all Home install / collect in store items are held in stock.