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NAD T 758 V3i vs Denon X3800H
The audiophile holdout vs the modern default — which should you buy?
The short answer
Buy the Denon AVR-X3800H for any modern, growing system — nine channels, four subs, a 40 Gbps-class curated HDMI spec, and a 4–16Ω rating, all stated. Buy the NAD T 758 V3i for Dirac Live and the catalog's most honest amp spec (60W, ALL channels driven, 0.05% THD) — accepting a stated 8Ω floor and an 18 Gbps HDMI board.
As tracked by Home Theater Builder: the NAD T 758 V3i tracks at $2,299; the Denon AVR-X3800H at $1,399. How we verify this data → The NAD T 758 V3i carries the most honestly-rated amplifier section in our AVR catalog — and some of its oldest digital plumbing. Against the X3800H, both halves of that sentence matter.
Specifications · side by side · per-field provenance
● SOURCE-TRACKED| Spec | NAD T 758 V3i | Denon AVR-X3800H |
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| Price | $2,299 | $1,399 |
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| Brand | NAD | Denon |
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| Main Channels | 7 | 9 |
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| Processing Channels | 11 | 11 |
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| Zone 2 Capable | Yes | Yes |
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| Watts Per Channel 8ohm | 110 | 105 |
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| Power Measurement Channels Driven | unstated | two channels driven |
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| Impedance Range | 8 ohms to 16 ohms | 4-16 Ω/ohms |
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| Impedance Min Ohms | 8 | 4 |
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| Impedance Max Ohms | 16 | 16 |
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| Room Correction System | Dirac Live (full bandwidth) | Audyssey MultEQ XT32 |
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| HDMI Version | 2.0 | 2.1 |
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| HDMI Max Bandwidth Gbps | 18 | 40 |
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| HDMI Earc Port Count | 0 | 1 |
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| Weight Lbs | 33.9 | 16.8 |
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| Channel Config | not stated | 9.4 |
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| Sub Pre Outs | not stated | 4 |
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| Height Channels | not stated | 4 |
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| Zone 3 Capable | not stated | No |
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| Watts Per Channel 6ohm | not stated | 135 |
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| THD Percent | not stated | 0.08 |
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| Dolby Atmos | not stated | Yes |
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| Dts X | not stated | Yes |
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| Auro 3d | not stated | Yes |
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| Imax Enhanced | not stated | Yes |
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| Measurement Mic Included | not stated | Yes |
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| HDMI Inputs | not stated | 6 |
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| HDMI Outputs | not stated | 3 |
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| HDMI 21 Port Count | not stated | 6 |
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| Max Passthrough Resolution | not stated | 8K 60 |
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| HDR Support | not stated | HDR, HLG, Dolby Vision, HDR10+, Dynamic HDR |
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| VRR Passthrough | not stated | Yes |
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| ALLM Support | not stated | Yes |
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| Phono Input | not stated | Yes |
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| Wifi | not stated | Yes |
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| Bluetooth | not stated | Yes |
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| Airplay2 | not stated | Yes |
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| Heos | not stated | Yes |
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| Alexa Built In | not stated | Yes |
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| Ip Control | not stated | Yes |
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| Streaming Services | not stated | TuneIn, Spotify Connect, Pandora, Qobuz |
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| Trigger Outputs Count | not stated | 1 |
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| Form Factor | not stated | full size |
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| Width Inches | not stated | 17.1 |
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| Height Inches | not stated | 6.6 |
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| Depth Inches | not stated | 14.9 |
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| Power Consumption W | not stated | 660 |
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Shaded rows differ · green dot = lab-measured · amber = manufacturer-verified · blue = retailer/community-reported · grey = estimated · “not stated” means exactly that
Reading the numbers honestly
NAD publishes a 60W rating with ALL channels driven at 0.05% THD — the strictest measurement context of any receiver we track, alongside a 110W into-8Ω line. Denon's 105W is 8Ω with two channels driven at 0.08%. An all-channels figure reads far lower than a two-channel figure from a comparable amplifier, so NAD's 60 and Denon's 105 are closer than they look — the point of storing the context. The rest of the NAD sheet is franker still: a stated 8–16Ω impedance range (NOT rated for 4Ω loads — the narrowest floor here), Dirac Live correction, and a curated HDMI 2.0 board at 18 Gbps against the Denon's curated 40. The Denon amplifies nine channels to the NAD's seven and states four independent sub outs.
Compatibility · computed, not written
Checked against a bookshelf that dips to a stated 3.5Ω like the KEF LS50 Meta: KEF LS50 Meta
Can the NAD T 758 V3i drive the KEF LS50 Meta?
NAD T 758 V3i states a 8Ω-minimum rating, and the KEF LS50 Meta dips to a stated 3.5Ω minimum — well below that floor. By its own published spec this receiver is not rated for a load like this.
Can the Denon AVR-X3800H drive the KEF LS50 Meta?
Denon AVR-X3800H states a 4Ω-minimum rating; the KEF LS50 Meta dips to a stated 3.5Ω minimum, a little below that floor. Most receivers handle a marginal dip at normal volumes — it's worth watching only at very high output on an entry-level unit.
Computed from the catalog's normalized fields — the same fields the builder's compatibility engine reads. A missing field reads as "can't check", never as a pass.
Check either one against your own build →Gaming & connectivity · answered from the spec sheets
Can the NAD T 758 V3i and Denon AVR-X3800H pass 4K/120 through?
The NAD T 758 V3i states 18 Gbps HDMI bandwidth, below the ~40 Gbps full 4K/120 needs; the Denon AVR-X3800H states 40 Gbps HDMI bandwidth — enough for full 4K/120.
The verdict
Buy the Denon AVR-X3800H for any modern, growing system — nine channels, four subs, a 40 Gbps-class curated HDMI spec, and a 4–16Ω rating, all stated. Buy the NAD T 758 V3i for Dirac Live and the catalog's most honest amp spec (60W, ALL channels driven, 0.05% THD) — accepting a stated 8Ω floor and an 18 Gbps HDMI board.
Gaming or 4K/120 sources, everDenon AVR-X3800H — Curated HDMI: 40 Gbps (Denon) vs 18 Gbps HDMI 2.0 (NAD) — a generational gap the NAD's sheet doesn't hide.
Dirac Live on principleNAD T 758 V3i — Stated Dirac Live vs Audyssey XT32 — the NAD carries the system measurement-first buyers ask for by name.
4Ω or hard-dipping speakersDenon AVR-X3800H — The NAD states 8–16Ω — the narrowest floor in our catalog; the Denon states 4–16Ω.
What our normalized data adds
NOT ON THE SPEC SHEETS- The strictest power rating we track: NAD states 60W with ALL channels driven at 0.05% THD (plus a 110W 8Ω line) — an FTC-style figure that makes big two-channel stickers look inflated, preserved with its context in our data.
- The NAD states an 8–16Ω impedance range — by its own sheet NOT rated for 4Ω-class speakers; the Denon states 4–16Ω.
- Curated HDMI generations a spec table rarely admits: 18 Gbps HDMI 2.0 (NAD) vs 40 Gbps (Denon).
- Correction fork, stated: Dirac Live vs Audyssey MultEQ XT32; channel topology 7/11-processing vs 9/11 with 4 independent sub outs.
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