Now Hear This NHT ST4 Floor Standing Speakers

Now Hear This NHT ST4 Floor Standing Speakers

NHT

Regular price $300.00 USD
Sale price $300.00 USD Regular price
Sale Sold out

NO SHIPPING LOCAL PICKUP ONLY

Enclosure Design: The NHT ST4 speakers feature two separate chambers. The top portion, which houses the mid-woofer and tweeter, is a sealed, acoustic suspension enclosure. The lower portion, which contains the side-firing woofer, is a bass reflex enclosure with a rear firing port. The cabinet, manufactured with acoustically-neutral MDF, is finished with gently tapered edges and a luxurious seven-coat hand-polished lacquer in piano gloss black.

Drivers: The 3-way ST4 speakers have a 1" fluid-cooled, metal dome tweeter with NHT's proprietary neodymium magnet structure coupled with an aluminum heat sink. The mid-woofer is a high-excursion, 6-1/2" polypropylene cone driver. The side-firing 8" long throw polypropylene cone woofer provides deep, accurate bass.

Speaker Placement: These speaker are designed to be used as a mirror-image pair with the side-loaded woofers facing away from each other. In situations where this isn't possible, and you don't have anything between the woofers blocking them, you can set up the ST4s so the woofers face inward toward each other.

Dual 5-Way Binding Posts: Each speaker has two sets of gold-plated 5-way binding posts connected by gold-plated jumpers. By removing the jumpers, you can separately use the two sets of binding posts to bi-amp or bi-wire the speakers. Bi-wiring will improve resolution and dynamics. For more precise tuning of the low frequency response, you can use two amplifiers (bi-amping). Each pair of binding posts will accept bare wire, pin connectors, spade connectors, banana plugs, and dual banana plugs.

Video-Shielding: The tweeter and midwoofer are video-shielded, allowing them to be positioned close to a TV screen without damaging the TV's picture. The 8" woofer is not video-shielded.

Spike Kit: The ST4 speakers come with their own spike kit, which both improves its stability and firmly couples the speaker to the floor for improved bass performance. The spike kit consists of two 11-3/4" stabilizer bars that bolt to the bottom of the cabinet. Each stabilizer bar holds two threaded metal spikes. For hardwood or vinyl flooring, you can place the spikes in the supplied metal bases, or use the self-adhesive rubber feet to prevent scratching or marring. The spikes add up to 1-1/2" to the overall height of the speakers.

Weight: Each speaker weighs 47-1/2 pounds.

Cabinet & design
    
Acoustic Suspension
    
Lacquered
    
High-gloss black
    
5-way post
    
Yes
Driver details
Tweeter type     Dome
    
1
    
6.5
Number of woofers     ---
    
8
    
Poly
    
Rubber
    
---
    
Audio specs
Power range (watts)     15-200
    
86 dB
    
8
    
31-22k Hz
    
---
Dimensions & other info
    
---
    
---
    
---
    
---

In stock

There’s something undeniably magnetic about vintage audio gear. The tactile weight of milled aluminum knobs, the warm glow of dial lamps, and—above all—the rich, analog sound that today’s sterile streaming boxes can’t quite replicate. But time is merciless: capacitors dry out, switches oxidize, and those gorgeous walnut cabinets lose their sheen. That’s where the art (and science) of our vintage audio refurbishment comes in.

Why Vintage Audio Still Matters

In the golden era of hi-fi—roughly the mid-1960s through the early 1980s—companies like Marantz, McIntosh, Pioneer, Sansui, and Technics were engaged in an arms race of build quality. This was before cost-cutting plastics and disposable designs; amplifiers were over-engineered, receivers were works of art, and turntables were precision instruments.

Owning one wasn’t just about sound; it was about status and permanence. These machines were built to last a lifetime—or two. The irony? Decades later, they often do, provided they’re given the care they deserve.

The Philosophy of Refurbishment

Refurbishment is not just about fixing; it’s about preserving authenticity while ensuring reliability. The goal is to keep that lush, analog character alive without compromising safety or sound quality.

Some enthusiasts chase museum-level originality—keeping every factory component in place. Others opt for sympathetic modernization, upgrading parts that never existed in the ’70s to improve performance. Both approaches can be valid; it depends on your vision.

The Turntable Store refurbishing process.. step by step

Step 1: The Initial Encounter

When we first meet a 40-year-old amplifier, we resist the urge to plug it in right away. That dusty Marantz 2270 might look gorgeous, but old electrolytics and brittle insulation can short instantly under full voltage.

Instead:

  • We inspect for corrosion, burnt resistors, and leaking capacitors.
  • We use a Variac (variable transformer) to bring up voltage slowly, reforming capacitors rather than shocking them back to life.
  • We check fuses—not just for continuity but for correct ratings.

Tip: A faint musty smell? That’s often the scent of old phenolic boards, not trouble. But a burnt smell? That’s trouble.


Step 2: Deep Cleaning & Control Detox

Dust is the enemy of good sound, that is why we clean the interior carefully with compressed air and a soft brush.

The real magic comes with switches and potentiometers. Over decades, oxidation builds up, causing scratchy controls and dropouts. A deep contact clean in each pot and switch, followed by vigorous cycling, often restores silky-smooth operation.

Step 3: Electrical Resurrection

This is where science meets art:

  • Capacitors: Electrolytic caps often need some attention. We replace out-of-spec caps with high-quality modern equivalents (Nichicon, Panasonic), avoiding over-capacitance unless the power supply can handle it.
  • Resistors: Carbon comp resistors drift over decades. Measure and replace out-of-spec parts.
  • Transistors: Certain vintage transistors (e.g., 2SC458) are notorious for noise. We do swap defective ones for modern low-noise equivalents.
  • Relays & Lamps: Speaker relays oxidize; replace or clean contacts. Dial lamps? Upgrade to warm LEDs for a factory glow without the heat.


Step 4: Cosmetic Glory

Refinishing the walnut cabinet can transform a unit. We do use real wood oil or Danish oil, not polyurethane. We clean the glass dial carefully; those silkscreened letters are fragile.

Knobs? We polish with metal cleaner, but never use abrasives on anodized aluminum.

Faceplate lettering? We avoid harsh chemicals—just mild soap and a microfiber cloth.


Step 5: Calibration & Sonic Check

After the repair and cleaning, it’s time to dial in the performance:

  • We do adjust bias and DC offset on amplifiers for stable operation.
  • On turntables, we re-lube bearings, replace belts, and check speed accuracy.
  • On Cassette Decks and Reel to Reels, we replace belts ( if needed ), we clean and demagnetize the heads before the alignment process ( a must ! ) 

When done right, the result is astonishing: a sound that breathes—liquid mids, velvet highs, and bass with a tactile presence that modern gear rarely matches.


Our promise for Audiophile-Level Results

  • We Avoid Cheap Parts: That $5 eBay capacitor kit? Hard pass. We use reputable brands.
  • We Don’t Over-Polish: Patina is part of the charm. We aim for “well-loved,” not “plastic surgery.”
  • We Upgrade Discreetly: If we must modernize (like adding gold-plated RCA jacks), we keep it tasteful and reversible.


Why It’s Worth It

The payoff isn’t just sonic—it’s emotional. Restoring a 1970s Marantz or Sansui is like bringing a classic car back to life. Every glowing dial lamp, every smooth rotation of a volume knob, connects you to an era when music mattered enough to build machines like this.

And when you drop the needle on your favorite record and hear that warm, enveloping sound, you’ll know: this wasn’t just a repair. It was a resurrection.

We have a 14-day return policy, which means you have 14 days after receiving your item to request a return. 

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at theturntablestore@gmail.com. Please note that returns will need to be sent to the following address: 

The Turntable Store
45 Market Square
Manheim PA 17545

If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at theturntablestore@gmail.com.


Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items
Certain types of items cannot be returned, like turntable needles and custom products (such as special orders or personalized items). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. 

Unfortunately, we cannot accept returns on sale items or gift cards.

Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at theturntablestore@gmail.com.

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All items are meticulously serviced and restored to meet factory specifications

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We pack with precision and ship in brand new, appropriately sized, boxes.

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