Sony Lbt-v702 Specs May 2026
This system is part of Sony’s famous “LBT” (Loudspeaker Bass Treble) series, which competed directly with Sharp, Panasonic, and Philips in the burgeoning "mini component" wars.
Speaker System Specs (SS-LBV702)
The speakers were a 3-way bass-reflex design, essential for delivering the "Live Beat" sound. The model number for the speakers is typically SS-LBV702.
- Enclosure Type: Bass-reflex (ported)
- Woofer (Low Frequency): 6.7 inches (17 cm) cone type – Polypropylene or mica-filled
- Midrange Driver: 2.5 inches (6.5 cm) cone type
- Tweeter (High Frequency): 0.75 inch (2 cm) ceramic or PET dome
- Impedance: 8 ohms
- Power Handling Capacity: 100 watts (Max) / 70 watts (Nominal)
- Sensitivity (SPL): 88 dB (1W/1m)
- Frequency Response (Speaker alone): 40 Hz – 22 kHz
- Crossover Frequency: 2.5 kHz (Woofer to Mid/Tweeter)
- Dimensions (Per Speaker): 9.5" W x 13" H x 10.5" D (Approx. 240 x 330 x 267 mm)
- Removable Grille: Yes (cloth grille over the drivers)
Inputs & Outputs (Connectivity)
The rear panel is surprisingly robust for a shelf system. Here are the detailed connectivity specifications. sony lbt-v702 specs
Rear Panel:
- Aux Input (RCA): 2x (Stereo L/R) – For connecting a second CD player, VCR, or gaming console.
- Tape In/Out (RCA): For external tape deck.
- CD Input (RCA): Fixed (used for internal CD mechanism).
- Phono Input (RCA): (Check unit; some variants lacked this, but higher LBT models had a dedicated moving-magnet phono stage). If present: Sensitivity 2.5 mV, Impedance 47k ohms.
- Speaker Terminals: Spring-clip type (accepts up to 16-gauge wire).
- AM Loop Antenna Terminal
- FM 75-ohm Coaxial Antenna Input
Front Panel:
- Microphone Input: 1/4-inch jack (with echo control for karaoke).
- Headphone Jack: 1/4-inch stereo (standard impedance 32–64 ohms).
1. Amplifier Section
The heart of the V702 is its amplifier. It was designed to deliver clean, loud sound without distortion, a hallmark of the Sony ES-adjacent engineering of the era.
- Power Output: 120W + 120W (at 6 ohms, 1kHz, 10% THD)
- Frequency Response: 20Hz – 20kHz
- Inputs/Outputs:
- Analog Audio In/Out
- Phono Input (Turntable ready)
- Video Input/Output (for connecting to a TV to display CD text or karaoke)
Speaker System (SS-V702)
The system came with large, floor-standing speakers model SS-V702. These were 3-way bass reflex speakers with a distinctive look. This system is part of Sony’s famous “LBT”
- Enclosure Type: Bass reflex (ported)
- Woofer: 8-inch (20cm) cone type
- Midrange: 3-inch (8cm) cone type
- Tweeter: 1-inch (2.5cm) piezoelectric or dome type (varies by region)
- Impedance: 6 ohms
- Frequency Response: 40Hz – 20kHz
- Sensitivity (SPL): 88 dB/W/m
- Dimensions (per speaker): Approx. 9.5" (W) x 13.75" (H) x 11" (D) — compact floorstander
- Weight per speaker: Approx. 11 lbs (5 kg)
CD Player – Basic but Reliable
- Uses a KSS-210A or similar optical pickup – very robust, still repairable (laser replacements available).
- No digital out (SPDIF). Only analog RCA.
- Track access time: ~2.5 seconds – slow by modern standards but normal then.
Amplifier & Power Specs (The Heart of the System)
The main unit (amplifier/tuner section) was the centerpiece. Sony marketed this system with "High Power" output, though ratings differ between peak and RMS.
- RMS Continuous Power: 120 watts per channel (into 6 ohms, 1 kHz, 10% THD)
- Total RMS Power: 240 watts
- Peak Music Power Output (PMPO): 750 watts (manufacturer claim, often used for marketing)
- Dynamic Power per Channel: Approximately 140W at 4 ohms
- Total Harmonic Distortion (THD): 0.9% or less (at rated power)
Note: Like many systems of the era, the RMS power rating is conservative compared to modern standards, but the LBT-V702 was known to drive speakers loudly and cleanly. Speaker System Specs (SS-LBV702) The speakers were a
Core Amplifier Specs (The Brain)
The heart of any stereo system is its amplifier. The LBT-V702 uses a proprietary Sony amplifier stage designed for high power output in a compact chassis.
- Output Power (Total): 280 Watts RMS (Peak) / 140 Watts RMS (Continuous)
- Breakdown: 70 watts per channel into 8 ohms (RMS)
- Dynamic Power: 140 watts per channel (PEAK)
- Amplifier Type: Stereo Integrated Amplifier with Super Bass Boost
- Frequency Response: 20 Hz – 20,000 Hz (± 0.5 dB)
- Total Harmonic Distortion (THD): Less than 0.09% at rated power
- Signal-to-Noise Ratio (S/N): 90 dB (A-weighted)
- Input Sensitivity: 250 mV (Line input)
- Tone Controls:
- Bass: ± 8 dB at 100 Hz
- Treble: ± 8 dB at 10 kHz
- Super Bass Boost (GROOVE): Switchable + 4 dB at 70 Hz
Physical Specs (Tuner)
- Dimensions: 280 mm x 145 mm x 250 mm
- Weight: 2.0 kg (4.4 lbs)