Description
NAC42.5 Preamplifier — Key Features
- Three inputs: Phono, Tuner, and Tape — selected via the right-hand rotary switch on the front panel
- Normal / Mute / Monitor switching via the front panel toggle
- Balance control and volume control via the two large front panel knobs
- NA322/4 Moving Magnet phonocards fitted — these plug-in boards provide a full RIAA phono stage for MM cartridges and are a sought-after accessory in the Naim chrome bumper community
- Powered by the NAP110 via DIN interconnect in this configuration — no HiCap external power supply required. An adaptor is included to facilitate this connection
- All connections via Naim’s own DIN socket standard — phono, tuner, tape, and output
- Designed and made in England by Naim Audio, Southampton Road, Salisbury
NAP110 Power Amplifier — Key Features
- Approximately 45 watts per channel into 8Ω — a figure that, in keeping with Naim’s design philosophy, understates the amplifier’s real-world drive capability, with substantial dynamic headroom from the onboard power supply
- Supplies power to the NAC42.5 preamplifier via a single 24V rail through the DIN interconnect — removing the need for a separate HiCap in a basic configuration
- The NAP110’s model number reflects its total output into 4Ω — consistent with Naim’s practice of rating amplifiers by combined output rather than per-channel figures
- Speaker outputs via 4mm banana sockets to Naim’s own standard
- Compact chrome bumper casework matching the NAC42.5
- Designed and made in England by Naim Audio, Salt Lane, Salisbury
Technical Specifications
Detailed published specifications are not held in HiFi Engine for either model. The following has been confirmed from verified sources including Neil McBride’s Naim buyer’s guide and Naim community references:
NAC42.5
- Type: Stereo preamplifier
- Inputs: Phono (MM via NA322/4 cards), Tuner, Tape
- Phono Stage: NA322/4 Moving Magnet phonocards fitted
- Connections: Naim DIN standard throughout
- Power Supply: Supplied by NAP110 (or optionally by HiCap)
- Dimensions (W x H x D): 205 x 87 x 300mm (approx.)
- Country of Origin: England
NAP110
- Type: Stereo power amplifier
- Power Output: Approximately 45 watts per channel into 8Ω
- Voltage Gain: 29dB
- Speaker Outputs: 4mm banana sockets (Naim standard)
- Preamp Power Supply: 24V single rail via DIN output
- Dimensions (W x H x D): 205 x 87 x 300mm (approx.)
- Country of Origin: England
Accessories Included
- Adaptor connector allowing NAP110 to power NAC42.5 directly without a HiCap
A Note on Service
As with all chrome bumper era Naim equipment, periodic servicing and recapping is recommended — Naim and the wider Naim community suggest approximately every ten years. Both units have been checked by Andrew and are confirmed working. The service history of these units prior to our ownership is not known. Naim Audio continue to support this equipment and offer servicing directly. This should be factored into any purchasing decision, and is reflected in the asking price.
Why Buy From Us
With over 40 years of experience in the Hi-Fi industry, we are well placed to assess and test vintage equipment of this type. Every item we list is fully inspected and tested before sale — both units were checked by Andrew in our workshop.
When you buy from us you can expect:
- Full inspection and testing prior to listing — not simply a visual check
- A 3-month guarantee on every item we sell
- Transparent descriptions with no omissions
- Professional packaging to ensure safe delivery
- After-sales support available by phone or email should you have any questions
Summary
The Naim NAC42.5 and NAP110 in chrome bumper form represent an accessible and well-regarded entry into the Naim pre/power system. The inclusion of NA322/4 Moving Magnet phonocards and the HiCap adaptor makes this a complete, ready-to-use combination. Both units are in great condition. This is a matched pair listed as a single lot. Please feel free to get in touch with any questions prior to purchase.
