Tested Both left and right channels function, did not hear any distortion Only the aux section and has been test The subsonic and tone control does not function properly Cosmetically left side has a nick, some wear and tear such as lite marks and scuffs, scratches no heavy scratches Please check all pictures provided Will be packaged in a double wall box and styrofoam all around Sold for repair or parts

Rare vintage RGR Robert Grodinsky Research Model 4 stereo preamplifier with phono. 2 phono inputs with variable capacitive loading, tone controls, tape dubbing, AC outlets etc very full function. Used working condition some scuffs from component stacking and along top edge of faceplate- normal wear and tear for a component of this vintage. These were quite high end units sold through Lyric HiFi and other select boutique HiFi dealers. Sold as-is only within continental US, no military APO addresses. Buyer pays flat rat $40 shipping.

RGR ROBERT GRODINSKY RESEARCH Model Four Stereo Control Preamplifier Inputs: 2 x Phono MM: (30, 130, 360 pF), 2 x Aux, 2 x Monitor Tape record outputs: 2 x 2 RCA Phono equalization: RIAA + = 0.1 dB Rated output voltage: 2 V THD (1 kHz): 0.005% Intermodulation: 0.006% Power bandwidth: 0.5 Hz to 300 kHz Frequency response: 20 Hz to 20 kHz (+ = 0.05 dB) Noise ratio: Phono MM/MC: 80/- dB Outputs: Amplifier: 4 x RCA Tone controls: Bass at 20 Hz: + = 12 dB, Treble at 15 kHz: + = 12 dB Dimensions: 484 x 95 x 300 mm Weight: 6.5 kilograms + Model Five High Current Power Amplifier Couple technical data: Manufacturer: RGR, USA RMS rated power: 2 x 360 watts into 2 ohms 2 x 200 watts into 4 ohms 2 x 100 watts into 8 ohms THD (1 kHz): 0.04% at 4 ohms Intermodulation 0.03% at 4 ohms Performance bandwidth of: 0.04 Hz to 115 kHz at 4 ohms Frequency: 0.08 Hz to 65 kHz - 1 dB Outputs: 2 x speaker,screws Protections: electronically: overload, DC: thermal Special features: 19-inch casing with handles Dimensions: 484 x 190 x 335 mm Weight: 16.4 kg Spedizione gratuita (solo Italia) con corriere espresso in super imballo FOR INTERNATIONAL SHIPPING, CONTACT ME BEFORE MAKING BIDS TO DETERMINE SHIPPING PRICES AND SERVICE THANK QUESTA E UNA VENDITA DA PARTE DI UN SOGGETTO PRIVATO. Loggetto viene venduto con la formula NESSUNA GARANZIA perché in base ad una nuova normativa della Comunità Europea anche i privati sono tenuti a fornire garanzia sul prodotto venduto a meno che non la escludano al momento della vendita. Il tipo di garanzia richiesto risulta molto oneroso per un privato: aggiudicandovi loggetto accettate esplicitamente l’esclusione di qualsiasi forma di garanzia. Di conseguenza loggetto proposto, anche se perfettamente funzionante, viene venduto nello stato in cui si trova ( AS IS ) senza garanzia esplicita o sottintesa.

Sony RGR GX257 Records TV 780P DVDR. This is a DVDR recorder that has the ability to record from TV and other recording devices such as VCR Tapes based on correct setup with component video cords(not included). It has always worked well some discs might not be recognized or recordable. Sony DVRs and Some Verbatim discs are compatible. The DVDR was manufactured in 2009. USA Only shipping. No zero feedback bidders.

Sony RGR GX257 Records TV 780P DVDR. This is a DVDR recorder that has the ability to record from TV and other recording devices such as VCR Tapes based on correct setup with component video cords(not included). It has always worked well some discs might not be recognized or recordable. Sony DVRs and Some Verbatim discs are compatible. The DVDR was manufactured in 2009. USA Only shipping. No zero feedback bidders.

RGR ROBERT GRODINSKY RESEARCH Model Four Stereo Control Preamplifier Inputs: 2 x Phono MM: (30, 130, 360 pF), 2 x Aux, 2 x Monitor Tape record outputs: 2 x 2 RCA Phono equalization: RIAA + = 0.1 dB Rated output voltage: 2 V THD (1 kHz): 0.005% Intermodulation: 0.006% Power bandwidth: 0.5 Hz to 300 kHz Frequency response: 20 Hz to 20 kHz (+ = 0.05 dB) Noise ratio: Phono MM/MC: 80/- dB Outputs: Amplifier: 4 x RCA Tone controls: Bass at 20 Hz: + = 12 dB, Treble at 15 kHz: + = 12 dB Dimensions: 484 x 95 x 300 mm Weight: 6.5 kilograms + Model Five High Current Power Amplifier Couple technical data: Manufacturer: RGR, USA RMS rated power: 2 x 360 watts into 2 ohms 2 x 200 watts into 4 ohms 2 x 100 watts into 8 ohms THD (1 kHz): 0.04% at 4 ohms Intermodulation 0.03% at 4 ohms Performance bandwidth of: 0.04 Hz to 115 kHz at 4 ohms Frequency: 0.08 Hz to 65 kHz - 1 dB Outputs: 2 x speaker,screws Protections: electronically: overload, DC: thermal Special features: 19-inch casing with handles Dimensions: 484 x 190 x 335 mm Weight: 16.4 kg Spedizione gratuita (solo Italia) con corriere espresso in super imballo FOR INTERNATIONAL SHIPPING, CONTACT ME BEFORE MAKING BIDS TO DETERMINE SHIPPING PRICES AND SERVICE THANK QUESTA E UNA VENDITA DA PARTE DI UN SOGGETTO PRIVATO. Loggetto viene venduto con la formula NESSUNA GARANZIA perché in base ad una nuova normativa della Comunità Europea anche i privati sono tenuti a fornire garanzia sul prodotto venduto a meno che non la escludano al momento della vendita. Il tipo di garanzia richiesto risulta molto oneroso per un privato: aggiudicandovi loggetto accettate esplicitamente l’esclusione di qualsiasi forma di garanzia. Di conseguenza loggetto proposto, anche se perfettamente funzionante, viene venduto nello stato in cui si trova ( AS IS ) senza garanzia esplicita o sottintesa.

AMPLIFICATORE FINALEROBERT GRODISNKY RESEARCHRGR MODEL FIVEHIGH CURRENT POWER AMPLIFIER POTENZA: 360 WATT x CANALE (2 OHM)200 WATT X CANALE (4 OHM)100 WATT x CANALE (8 OHM) DIMENSIONI: 484 x 335 x 190 mmPESO: 16,4 KgAL MIO TEST RISULTA PERFETTAMENTE FUNZIONANTE!LE CONDIZIONI ESTETICHE SONO NEL COMPLESSO BUONE, IL FRONTALE E PULITO E SENZA GRAFFI, COME DA FOTO... DATE UNOCCHIATA AGLI ALTRI OGGETTI IN VENDITA..... ......CE LA POSSIBILITA DI SCONTO SULLA SPEDIZIONE PER PIU ACQUISTI! E NON DIMENTICATE DI AGGIUNGERMI TRA I VS VENDITORI PREFERITI! CONTATTATEMI, E NON ESITATE A DARMI IL VOSTRO INDIRIZZO E-MAIL PER RICEVERE ALTRE FOTO.

RGR ROBERT GRODINSKY RESEARCH Model Four Stereo Control Preamplifier Inputs: 2 x Phono MM: (30, 130, 360 pF), 2 x Aux, 2 x Monitor Tape record outputs: 2 x 2 RCA Phono equalization: RIAA + = 0.1 dB Rated output voltage: 2 V THD (1 kHz): 0.005% Intermodulation: 0.006% Power bandwidth: 0.5 Hz to 300 kHz Frequency response: 20 Hz to 20 kHz (+ = 0.05 dB) Noise ratio: Phono MM/MC: 80/- dB Outputs: Amplifier: 4 x RCA Tone controls: Bass at 20 Hz: + = 12 dB, Treble at 15 kHz: + = 12 dB Dimensions: 484 x 95 x 300 mm Weight: 6.5 kilograms + Model Five High Current Power Amplifier Couple technical data: Manufacturer: RGR, USA RMS rated power: 2 x 360 watts into 2 ohms 2 x 200 watts into 4 ohms 2 x 100 watts into 8 ohms THD (1 kHz): 0.04% at 4 ohms Intermodulation 0.03% at 4 ohms Performance bandwidth of: 0.04 Hz to 115 kHz at 4 ohms Frequency: 0.08 Hz to 65 kHz - 1 dB Outputs: 2 x speaker,screws Protections: electronically: overload, DC: thermal Special features: 19-inch casing with handles Dimensions: 484 x 190 x 335 mm Weight: 16.4 kg Spedizione gratuita (solo Italia) con corriere espresso in super imballo FOR INTERNATIONAL SHIPPING, CONTACT ME BEFORE MAKING BIDS TO DETERMINE SHIPPING PRICES AND SERVICE THANK QUESTA E UNA VENDITA DA PARTE DI UN SOGGETTO PRIVATO. Loggetto viene venduto con la formula NESSUNA GARANZIA perché in base ad una nuova normativa della Comunità Europea anche i privati sono tenuti a fornire garanzia sul prodotto venduto a meno che non la escludano al momento della vendita. Il tipo di garanzia richiesto risulta molto oneroso per un privato: aggiudicandovi loggetto accettate esplicitamente l’esclusione di qualsiasi forma di garanzia. Di conseguenza loggetto proposto, anche se perfettamente funzionante, viene venduto nello stato in cui si trova ( AS IS ) senza garanzia esplicita o sottintesa.