Yamaha NS-670From real comments

Verdict distilled from 16 mentions across 8 aspects in comments under product review videos.

Positive sentiment73%
PROS 73%
CONS 27%

Rank based on 16 mentions across 8 aspects

View the verdict as

Buy this if...

  • You want a vintage 3-way bookshelf speaker known for balanced, sensitive sound
  • You can find one from an original owner or at a low estate-sale price
  • You're pairing with a capable amplifier since these speakers reward good source gear

What users love

Skip this if...

  • You're not comfortable with potential age-related issues like scratchy potentiometers
  • You want a modern speaker with known, fixed pricing rather than variable secondhand value
  • You need the larger 12-inch driver of the related NS-690 instead

What users complain about

Compare in seconds

Based on user comments

Best choiceBest value
1Mid
Wharfedale Denton 85
Warm, non-fatiguing soundStrong bass without needing a subwooferExcellent build quality and finishCan be overwhelming at higher volumes in smaller roomsLess precise detail retrieval than pricier speakersPlacement-sensitive for best imaging
Wharfedale Denton 85
Warm, non-fatiguing sound
Strong bass without needing a subwoofer
Excellent build quality and finish
Can be overwhelming at higher volumes in smaller rooms
Less precise detail retrieval than pricier speakers
Placement-sensitive for best imaging
You are here
2
Yamaha NS-670
Wonderful, balanced soundEnduring build qualityGood cosmetic condition possibleUncertain resale pricingAge-related hesitancy to serviceScratchy potentiometers
Yamaha NS-670
Wonderful, balanced sound
Enduring build quality
Good cosmetic condition possible
Uncertain resale pricing
Age-related hesitancy to service
Scratchy potentiometers
3Budget
Polk Audio Signature S20
Amp compatibilityExcellent value for priceStrong bass response
Polk Audio Signature S20
Amp compatibility
Excellent value for price
Strong bass response
4Premium
Yamaha NS-600A
Wide, immersive soundstageBuild and finish qualityStrong brand loyalty and satisfactionAmplifier pairing uncertaintyHigh price relative to alternativesPlacement sensitivity required
Yamaha NS-600A
Wide, immersive soundstage
Build and finish quality
Strong brand loyalty and satisfaction
Amplifier pairing uncertainty
High price relative to alternatives
Placement sensitivity required
5Premium
Epos ES-7N
Big sound for its sizeArticulate midrangeLong-term owner satisfactionCheap build componentsHigh price relative to build
Epos ES-7N
Big sound for its size
Articulate midrange
Long-term owner satisfaction
Cheap build components
High price relative to build
6Budget
Wharfedale Diamond 8.1
Excellent ValueBalanced, Non-Fatiguing SoundLong-Term Durability
Wharfedale Diamond 8.1
Excellent Value
Balanced, Non-Fatiguing Sound
Long-Term Durability
7Mid
Wharfedale Evo 4.1
Well-implemented AMT tweeterDeep, punchy bass beyond expectationsSolid build quality and attractive cabinetNeeds a powerful amplifierYellow/gold AMT tweeter styling divides opinionBenefits from burn-in before sounding its best
Wharfedale Evo 4.1
Well-implemented AMT tweeter
Deep, punchy bass beyond expectations
Solid build quality and attractive cabinet
Needs a powerful amplifier
Yellow/gold AMT tweeter styling divides opinion
Benefits from burn-in before sounding its best
8Budget
Pioneer BS22
Exceptional value for moneyClear, detailed mids and vocalsSurprisingly strong bass outputRequires adequate amplification to shineCan sound boomy or bass-heavy without treatmentIsolated complaint about cheap construction and poor mids
Pioneer BS22
Exceptional value for money
Clear, detailed mids and vocals
Surprisingly strong bass output
Requires adequate amplification to shine
Can sound boomy or bass-heavy without treatment
Isolated complaint about cheap construction and poor mids
9Premium
Focal Sopra No1
Exceptional detail and resolution
Focal Sopra No1
Exceptional detail and resolution
10Mid
Polk Audio Signature S10
Fits Into a Larger Signature Series SystemDecent Sound QualityGreat for Small RoomsNeeds a Subwoofer to Fill a Room
Polk Audio Signature S10
Fits Into a Larger Signature Series System
Decent Sound Quality
Great for Small Rooms
Needs a Subwoofer to Fill a Room

Who wins on what

Ranked by what users actually praise

Overall Impression

Owners say the NS-670 still delivers wonderful sound decades after purchase. Multiple commenters who bought their NS-670 pairs new or secondhand years ago, some back in the late 1980s, report the speakers still work fine today. They describe the sound as wonderful, beautiful, balanced, and fantastic, with one calling them rare. This consistency from different owners over long ownership periods suggests the design has held up well and remains satisfying to listen to.

The speakers are sensitive and reward quality amplification. One commenter notes these are pretty sensitive speakers, and another states the better you feed them, the better the sound, implying amplifier quality noticeably affects output. Owners pairing them with various Yamaha receivers and other gear report positive results, suggesting the NS-670 performs best when matched with a capable source rather than a weak amplifier.

Minor age-related wear exists but doesn't ruin the experience. One owner from the late 1980s notes the potentiometers are a little scratchy when adjusted, though this doesn't interfere with overall sound quality. Another owner, after 30 years, admits being hesitant to open the cabinet up but says it doesn't look too bad. This suggests cosmetic and minor mechanical aging is common but generally doesn't compromise the listening experience.

Outdated / Not-accurate data?