NAD

The 3020 — the little amp that conquered the world

History

NAD (New Acoustic Dimension) was founded in London, England in 1972 by Dr. Martin Borish, an engineer who had previously worked at Harman Kardon. Borish believed that the hi-fi industry had lost its way, focusing on specifications and features rather than musical enjoyment.

NAD's philosophy was revolutionary: focus on the aspects of design that affect musical performance while eliminating expensive cosmetic features and unnecessary functions. This "music first" approach would define the company.

The 3020 integrated amplifier (1978) became NAD's breakthrough product and one of the best-selling hi-fi components in history. With just 20 watts per channel, the 3020 outperformed amplifiers rated at 100+ watts thanks to its innovative "Soft Clipping" circuit and ability to deliver high current into difficult speaker loads.

The 1980s saw NAD expand its range with the 3020A, 3020B, 3020E, and subsequent models. The company also introduced receivers, CD players, and speakers, all following the same value-oriented philosophy.

In 1991, NAD was acquired by AudioNord, a Danish company. The brand continued to produce well-regarded electronics including the C series components. NAD pioneered digital amplification with the M2 Direct Digital amplifier in 2010.

Key Facts

Legendary Products

NAD 3020 (1978)

One of the best-selling hi-fi components in history. The 3020's 20 watts per channel belied its ability to drive difficult speakers and produce music with engaging warmth and dynamics. Its success proved that good engineering matters more than specifications.

NAD 3020A/3020B/3020E (1980s)

Improved versions of the original 3020, incorporating lessons learned and new technologies. These variants maintained the original's musicality while improving reliability and features.

NAD 3140 (1980s)

A higher-powered integrated amplifier offering 40 watts per channel with the same "Soft Clipping" technology and current capability that made the 3020 famous.

NAD C 316BEE (2000s)

A modern successor to the 3020, continuing NAD's tradition of affordable excellence. The C 316BEE offered updated circuitry while maintaining the musical values that defined the brand.

Sound Signature

The NAD sound is warm, musical, and deceptively powerful. The legendary 3020's 20 watts per channel tell only a fraction of the story — thanks to its innovative Soft Clipping circuit and exceptional current delivery capability, this little amplifier drives difficult speakers with an authority that embarrasses competitors rated at 50 watts or more. The bass is full and tuneful, the midrange is warm and present, and the treble is smooth without sacrificing detail.

What makes NAD equipment so enduringly popular is that it sounds involving. These are not amplifiers designed to impress with specifications or analytical detail — they are designed to make you enjoy your music collection. The Soft Clipping circuit means that when the amplifier is pushed hard, it compresses gracefully rather than producing harsh distortion, resulting in a sound that stays musical even at enthusiastic volume levels. NAD's "music first" philosophy is not just marketing — you can hear it in every design decision.

Collecting NAD

The 3020 is one of the best-selling hi-fi components in history, and it remains the definitive NAD collectible. Early UK-made examples are the most desirable, followed by the 3020A which improved upon the original with better reliability and refined circuitry. The 3020B and 3020E continued the evolution. With over a million 3020-series units produced, finding one is not difficult, but finding an early example in excellent original condition takes patience.

The 3140 doubles the power to 40 watts per channel while retaining the 3020's musical character, making it the choice for listeners with larger rooms or less efficient speakers. For those wanting NAD's most refined expression, the later C series components offer modern refinements while honoring the original philosophy. NAD equipment is straightforward to service and responds well to basic maintenance — a recapped 3020 with cleaned controls can deliver performance that surprises listeners accustomed to modern amplifiers at much higher price points.

Competitors & Comparisons

NAD vs Arcam: Both British value brands; different sonic signatures

NAD vs Cambridge Audio: Similar market; NAD more musical

NAD vs Rotel: Both good value; NAD warmer, Rotel more neutral

Amplifiers

• 1020 — NAD 1020 preamplifier — a no-nonsense phono-first linestage, offered as 1020 and revised 1020A with power-supply fixes. Little formal documentation survives.
• 120 — NAD 120 power amplifier — dual-mono Class AB design, 80W/ch into 8 ohms, praised by Absolute Sound as transparent, neutral, and dynamic.
• 160a — The NAD 160a is a stereo receiver produced from 1988 to 1990 — essentially the NAD 1600 integrated amplifier with a tuner section added, built for the
• 200 — NAD Model 200 Monitor Series power amplifier, c. 1985. 100W into 8 ohms with high current capability and tube-like midrange liquidity.
• 2140 — NAD 2140 stereo power amplifier (c.1980-1983) — NAD's Power-Drive design with Soft-Clipping, toroidal transformer, and a documented output transistor failure mode.
• 2150 — NAD 2150 dual-mono power amplifier — 150W/ch into 8Ω, 220W into 4Ω, balanced & unbalanced inputs, 116dB S/N.
• 300 — NAD 300 integrated amplifier — an early NAD model predating the 3020, with modest specs and a thin surviving record.
• 3020 (1978-1983) — NAD 3020 integrated amplifier (1978–1983) — 20W/ch that behaves like 40, Soft Clipping, dual-mode supply, superb phono stage. The budget amp that changed hi-fi.
• 3020A (1983-1987) — Updated version of the classic 3020 with minor improvements. Maintained the legendary sound quality. This page has recent sold prices.
• 3020i — NAD 3020i integrated amplifier — 20W/ch, 6Hz–80kHz, soft clipping, MM phono stage at 47kΩ/300pF. A budget classic built for current delivery.
• 3030 — Little is documented about the NAD 3030. The archive's research files contain no identity confirmation, no production years, no original price, no
• 3120 — NAD 3120 integrated amplifier, c.1988–1992. A no-frills budget amp — 25W/ch, high-current supply, no phono stage. Little officially documented; enthusiast sources praise its musicality.
• 3140 — NAD 3140 integrated amplifier — a budget sibling to the legendary 3020 with soft clipping circuitry, rated at 50W into 8 ohms. Little else is firmly documented.
• 3150 (1982–1984) — NAD 3150 integrated amplifier (1982–1984), 50 conservative W/ch, dual-mono with two transformers, bridging to mono, adjustable MM/MC phono.
• 60 — NAD 60 power amplifier — 25W per channel into 8 ohms, 0.02% distortion. Little-documented sibling of the classic NAD 3020.
• C 3050 — An integrated amplifier with streaming and a retro design, combining modern tech with vintage aesthetics. With detailed specs and production dates.
• C 3050 LE — NAD C 3050 LE: limited-edition 50th-anniversary integrated amplifier, 1,972 numbered units, 100Wpc HybridDigital UcD, BluOS streaming included.
• C298 — NAD C 298 stereo power amplifier with Purifi Eigentakt Class D technology, rated 185Wpc into 8 ohms, bridgeable to 620W mono.
• C328 — The NAD C328 is a HybridDigital integrated amplifier — NAD taking the philosophy of its famous 1978 3020 and updating it for the digital age. The
• C338 — NAD C338: a little-documented Class D integrated amp with Chromecast Built-in and on-board streaming. Known record: retailer listings, one 2021 price.
• C399 — NAD C399 Hybrid Digital DAC Amplifier — Classic-series flagship combining the C658 and C298 in one chassis; The Absolute Sound called it a bargain.
• Model 200 (1975) — NAD Model 200 power amplifier — 100W per channel, Monitor Series, c. 1985. A no-frills budget powerhouse with high-current capability and tube-like midrange.
• Model 208 — NAD Model 208 power amplifier — 225W/8Ω, Class A/B direct-coupled design. Production years and price undocumented; a powerful, little-documented Master Series-era amp.
• Model 302 — NAD Model 302 integrated amplifier, early 1980s budget design, 25W/ch into 8Ω. Little-documented model with conflicting production dates.
• Model 304 — NAD Model 304 integrated amplifier from 2000 — 20W/ch into 8Ω, built-in phono stage, Power Drive and Soft Clipping circuitry. The honest budget entry point to NAD's Classic series.

Cassette Decks

• 6150-C — NAD 6150-C stereo cassette deck with Dolby B/C noise reduction, soft-touch transport, and gold-plated jacks; documented in a 1983 HiFI-Stereo listing at $460.

Cd Players

• 5100-CD — Little-documented NAD 5100-CD CD player from NAD's Monitor Series; shown in 1989 ads, offered at $299 in a 1992 dealer listing.
• C558 — NAD C558 turntable — a Pro-Ject-based deck built to NAD's spec with an Ortofon OM10 and glass platter. A little-documented model; few specs survive.
• C568 — NAD C568 CD player (2016) with 24-bit WM8741 DAC, CD/MP3/WMA playback, USB input, and optical/coaxial outputs. A late-era NAD design.
• Model 502 — NAD Model 502 CD player from the early 1990s — Philips 1-bit MASH DAC, DC coupling, NAD-Link jacks, $299 in 1995. Thin documentation.
• Model 505 — NAD Model 505 — an obscure integrated amplifier listed at 50W+50W in NAD's Philips series, documented by only a single source.

Power Amplifiers

• 2600A — NAD 2600A: little-documented power amplifier, 150 W/ch, Power Envelope design, high-current output. Known from a 1990 listing.

Preamplifiers

• 1150 — The NAD 1150 appears in period documentation as a stereo tape deck, though surviving information on this model is thin. What the record shows: it was a
• 118 — NAD 118 digital preamplifier (c.1997). Six processing functions, DSP, and remote. Reviewed in Audio and HiFI-Stereo. Priced at $699 new.
• 1700 — NAD 1700 preamplifier/tuner from the Monitor Series, praised by Julian Hirsch in Stereo Review (6/88). Priced at $799. With production dates.
• S-100 (1998–2003) — NAD S-100 (1998–2003) Silver Line preamp — reviewed by Audio as one of the quietest setups tested, with split owner opinions and a sought-after optional phono module.

Receivers

• 160 (1975-) — NAD 160 stereo receiver, circa 1978–1980, 55W per channel into 8Ω. A solid but thinly documented late-1970s NAD receiver, often conflated with the 160a and 160b variants.
• 7020 (1979-1983) — NAD 7020 (1979–1983) receiver — 20W/ch, Soft Clipping, 3-filter FM tuner, 3020 amp lineage. The budget audiophile classic.
• 7045 — NAD 7045 home theater receiver (1999-2001) — NAD's first multichannel receiver with Dolby Digital/DTS, conservatively rated at 5x70W.
• 7060 — Little is documented about the NAD 7060 — a straightforward AM/FM stereo receiver from the late 1970s or early 1980s.
• 7100 — NAD 7100 receiver, late 1970s. 50W high-current design, NAD's last high-end receiver. Rare and desirable.
• 7125 — NAD 7125 stereo AM/FM receiver, circa 1978-1983. Budget honest mid-fi receiver rated at 2x33W into 8Ω, positioned between the 7020 and 7140.
• 7140 — The NAD 7140 is a stereo receiver from the brand’s early-1980s lineup, rated at 40 watts per channel into 8Ω with 0.04% THD. It’s a period piece that
• 7150 — NAD 7150 stereo receiver — 50W/8Ω with 80W into 4Ω, toroidal transformer, Soft Clipping, MC/MM phono. Reviewed as exceptional by HiFi/Stereo Review in 1983.
• 7175PE — NAD 7175PE receiver — 75W/ch with Power Envelope circuitry, $478 original price, honest NAD engineering from the late 1970s/early 1980s.
• 7220-PE — NAD 7220-PE, a late-1980s NAD receiver featuring the Power Envelope amplifier circuit, documented mainly through NAD's own 1987 launch advertising.
• 7250PE — The NAD 7250PE is a modestly-powered stereo AM/FM receiver from the mid-1980s, built in Taiwan and introduced in 1986. It is documented well enough to
• 758v3 — NAD T758 V3 home theater receiver — 7.1-channel with Dirac Live, BluOS, and MDC modular design. Thin documentation; owner reports mixed.
• 777v3 — NAD T 777 V3 7.1-channel AV receiver with Dolby Atmos, DTS:X, Dirac room correction, and 4K pass-through. Little-documented flagship from the CEDIA Expo era.
• AV-716 — NAD AV-716 A/V receiver, circa 1995–1996. Dolby Pro Logic model praised by Stereo Review's David Ranada; period specs and context.

Speakers

• Model 802 — NAD Model 802 (1979) — 3-way acoustic suspension floorstander with soft-dome midrange, 90 dB sensitivity, and a cult following among vintage speaker enthusiasts.

Tuners

• 1600 — NAD 1600 preamplifier/tuner (c.1990). Monitor Series component with excellent tuner measurements; documented in Audio and HiFI-Stereo reviews.
• 4020 (1979-1983) — FM/AM tuner designed to match the 3020 amplifier. Good reception quality at affordable price. Covers what it sells for today and full specifications.
• 4150 — NAD 4150 stereo tuner (1985-1988). FM/AM, 1.5 µV sensitivity, 65 dB selectivity. A period Audio cover asked Better Than Carver's?
• 6300 — NAD 6300 cassette deck (1986–1989). Three-head, dual-capstan with Dolby HX Pro and Dyneq. 80dB S/N, wireless remote, $798.

Unknown

• 2400THX — NAD 2400THX THX-certified stereo power amplifier, 100 W/ch, bridgeable, rack-mountable. Little documented beyond a 1992 product mention.
• 310 — NAD 310 integrated amplifier, circa 1995, 20W/ch with super-simple circuit, toroidal transformer, and very low noise floor. Little else documented.
• 3130 — NAD 3130 integrated amplifier — a little-documented budget model from the mid-1980s, known only from period reviews. Includes when it was made.
• 502 — NAD 502 CD player from the early 1990s, a no-frills design with a 1-bit MASH DAC, 18-bit resolution, coaxial digital output, and wireless remote.
• 5025 — NAD 5025: little-documented receiver or integrated amplifier from late-1970s, listed at ~$310 alongside 5010 and 5030. Covers when it was made.
• 522 — Little is documented about the NAD 522. What the record shows is that it is a CD player, reviewed in the July 1998 issue of HiFi/Stereo Review (p.46–47)
• 6040 — NAD 6040 stereo cassette deck, circa 1980. Known only from an Audio magazine equipment profile; specs for metal/CrO₂/standard tape response, distortion.
• 6050C — Little is documented about the NAD 6050C in the usual service manuals or product catalogs.
• 6125 — NAD 6125 stereo cassette deck, early 1980s, made in Japan. Little-documented 2-head model with M/X Head designation. Includes production dates.
• 6240 — NAD 6240 cassette deck from the mid-1980s. 2-head, Dolby B/C, adjustable bias and playback trim. Made in Japan, approx. 600 DM.
• 7000 — NAD 7000 Monitor Series AM/FM stereo receiver (1988), 40W/ch, MC/MM phono input. A capable but lightly documented late-80s receiver from NAD.
• 7100X — NAD 7100X stereo receiver (1990, Monitor Series, 60W). Little documented; few known specs from European classifieds and Facebook system references.
• 7130 — NAD 7130 mid-1980s AM/FM stereo receiver, 30 W/ch with dynamic headroom, combining 3130 amplifier and 4130 tuner. Highly regarded budget-performance model.
• 7240 — NAD 7240 AM/FM stereo receiver (1987–1988). 40 W/ch Power Envelope design, based on NAD 3240. Obscure late-80s model with limited documentation.
• 910 — NAD 910 surround processor, a little-documented Dolby Pro Logic A/V preamp from the mid-1990s. Six-channel outputs, remote control, originally around £200.
• T-550 — NAD T-550 DVD/CD player (c.2000). NAD's first DVD player, reviewed in Audio-Express. Soft-centred but likeable audio, terrific video.

Other Models

• 3225PE — NAD 3225PE integrated amp — 25W/ch, +4dB headroom, soft clipping, shares service manual with 3020i. A small amp built to a standard, not a price.
• 5120 — NAD 5120 belt-drive turntable, $198 budget deck with radical floppy tonearm, warm forgiving sound, often paired with NAD 3020 amp.
• 9100 — NAD 9100 standalone phono preamplifier supporting both MM and MC cartridges with outboard power supply. Little formally documented; enthusiast reports praise its clean, quiet sound.
• 9200 — NAD 9200 standalone phono amplifier. Documented specs: 36 dB gain, 10 Hz-100 kHz range, 1 kΩ output, 4 W consumption. Little else on record.
• 9300 — The NAD 9300 is one of those models that exists in the world — there are for-sale listings describing it as a stereo power amplifier, and it turns up in
• S500 — NAD S500 single-disc CD player — 20-bit Crystal DAC, balanced XLR and AES/EBU outputs, ±0.15 dB response. A serviceable reference deck.
• T175 — NAD T175 AV preamp-tuner-processor, $2999 at launch. MDC modular cards, Audyssey MultEQ XT, four HDMI 1.3 inputs, VXP video processing.