Welcome to Vacuum Tube Depot llc! We have been one of the leading online suppliers of vacuum tubes for many years. Recently, we acquired a very large collection of tubes that we are excited to offer. We have tested and sold thousands of these tubes, and have many, many more to sell. After testing literally thousands of tubes from this collection, we have found only a small handful that did not test well. The vast majority tested strong. Buy with confidence, and if you are not happy with your purchase, you can send it back on your dime for a refund. We will combine shipping on multiple purchases within 5 days of the first auction ending. Payment must be made within 5 days or your purchase will be canceled and re-listed. We do not have the space to hold onto auctions for you for any longer than this. If you would like combined shipping, please wait to make payment until after we have sent your invoice. We send invoices each day after all auctions have ended for that day. Combined shipping can only be combined with this shop, not other shops with similar names. Thank you for shopping with Vacuum Tube Depot llc! We have tons of these flats loaded with tubes. We opened maybe tons boxes to make sure tubes matched the boxes, out of all the boxes we opened. Most matched, but several had the correct number but different brand from box. Sold as is

Welcome to Vacuum Tube Depot llc! We have been one of the leading online suppliers of vacuum tubes for many years. Recently, we acquired a very large collection of tubes that we are excited to offer. We have tested and sold thousands of these tubes, and have many, many more to sell. After testing literally thousands of tubes from this collection, we have found only a small handful that did not test well. The vast majority tested strong. Buy with confidence, and if you are not happy with your purchase, you can send it back on your dime for a refund. We will combine shipping on multiple purchases within 5 days of the first auction ending. Payment must be made within 5 days or your purchase will be canceled and re-listed. We do not have the space to hold onto auctions for you for any longer than this. If you would like combined shipping, please wait to make payment until after we have sent your invoice. We send invoices each day after all auctions have ended for that day. Combined shipping can only be combined with this shop, not other shops with similar names. Thank you for shopping with Vacuum Tube Depot llc! We have tons of these flats loaded with tubes. We opened maybe tons boxes to make sure tubes matched the boxes, out of all the boxes we opened. Most matched, but several had the correct number but different brand from box. Sold as is

In good condition see pictures for details

BOSE 502A Controlled Array Speakers, pair, Gray Used, Nice Shape, Work as New 150-600 Watts Handling Capacity, Rated 150 Watts RMS Handling Capacity 502 A Controlled Array Frequency range 130Hz to 15kHz Nominal impedance 8? Maximum acoustic output1 112dB-SPL average; 121dB-SPL peak Recommended amplifier power 150-600W continuous into 8? Sensitivity2 90dB-SPL (1W, 1m), 130Hz to 15kHz Beamwidth (-6dB point) 120° horizontal; 70º vertical Long-term power handling3 150W continuous Mechanical specifications Dimensions: 23.5H x 5.75W x 6.75D (59.7 cm H x 14.6 cm W x 17.1 cm D) Weight: 15 lb (6.8 kg) Mounting points: Six (6) 8mm threaded inserts, 11mm depth Fuse: 4-ampere AGC 4 (Buss) or 3AG (Littlefuse) Connectors: Two (2) parallel-wired barrier strips4 These are really nice speakers - Ever go to a Concert and they have an Array System that really sounds good ? This is the same Principle with these. Beautiful Mid-range and High frequencies ,. You dont need the Bose Controller - Just adjust your Equalizer to tune the speakers for proper Flat frequency Output. Amazing to add for a band doing Venues where they want extra punch for Vocals as well as Home Theater use. Will be packaged well and padded with foam. Thanks for looking. Bob

ONE   NOS RCA Black Metal 502A Silver Print Vacuum Tube   No Box     Guaranteed THREE AVAILABLE ALL NEW Listing and template services provided by inkFrog

-502A Bluetooth 5.1 DC9-24V Audio Digital Amplifier Board Module 2.1 J5X6 Model Name: -502AProduct Name: 50W x 2 Bluetooth audio amplifier moduleAudio Input: AUX+ Bluetooth+U disk + USB sound cardChannel: 2.0 (stereo)Power Range: DC9-24V/4A above ( recommended high voltage)Adapter Speaker: 10W-50W, 4-8 ohmProtection Mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protectionPS: In the audio input is enough, the supply voltage/current is enough, there will be enough output power! The higher the supply voltage, the greater the output power. The smaller the impedance of the speaker, the greater the output power! Please that the power of the adaptor is the actual working power of the amplifierType: Subwoofer Amplifier Boardcolor:BlackMaterial:plasticsize:78 x 50 x 18mmPackage Contents:1 x -502A Bluetooth Audio Digital Power Amplifier Board Module

-502A VerstäRkerplatine Bluetooth 5.1 Digital Audio VerstäRkerplatine 50 V4N2 Hervorragende Qualität: Hochwertiges Material, sicher und langlebig. Leistung: mit besserem Rauschverhalten, hervorragender Ausgangstreiberfähigkeit und relativ hoher Kleinsignalbandbreite, großem Versorgungsspannungsbereich.High Fidelity: Bei Verwendung als Audioverstärker ist der Ton warm und die Wiedergabetreue .Breites Einsatzspektrum: geeignet für hochwertige und professionelle Audiogeräte, Instrumente, Steuerschaltungen und Telefonkanalverstärker.Es hat die Eigenschaften kleiner Größe, hoher Effizienz, hoher Leistung und geringer Wärmeentwicklung.[Produktmodell]-502A.[Produktname] 2.0-Kanal-50Wx2-Stereo-Bluetooth-Audio-Leistungsverstärker [Audioeingang] AUX+Bluetooth+U-Disk+USB-Soundkarte.[Bluetooth-Version]5.1.[Audioausgang] Linker Kanal 50 W + Rechter Kanal 50 W[Netzteil des Adapters] DC9~24 V/ größer oder gleich 3 A (kann nicht angeschlossen werden zu AC)[Angepasster Lautsprecher] 10-50W, 4-8 Ohm[Lautstärkeeinstellung]Klassischer mechanischer Knopf (mit Lautstärkeskala) stufenlose Einstellung[Schaltermaschine]Klassischer mechanischer Schalter, eins drehen, um die einzuschalten, keine Notwendigkeit, lange zu warten[Schutzmechanismus]Überhitzung, Überstrom, Kurzschluss, Antistatikschutz[Eigenschaften]Unterstützt Wuzhi Audio APP. Ändern und ändern Sie den Bluetooth-Namen, die Lautstärkeeinstellung des Aufforderungstons zur Kennworteinstellung, den Ein-/Aus-Aufforderungston, den Schlafhilfe-Song, die Soundeffektauswahl + benutzerdefinierter Soundeffekt, die U-Disk-Wiedergabeliste.[Produktgröße] 78 x 50 x 18 mmHinweis:Es wird empfohlen, einen 8-Ohm-Lautsprecher zu verwenden, die Stromversorgung 9-24 V DC und keine Überspannung zu erzeugen.Wenn ein 4-Ohm-Lautsprecher betrieben wird, darf die Stromversorgung 12 V nicht überschreiten.Farbe: Schwarz

ONE   NOS RCA Black Metal 502A Silver Print Vacuum Tube   No Box     Guaranteed THREE AVAILABLE ALL NEW Listing and template services provided by inkFrog

-502A Amplifier Board Bluetooth 5.1 Digital Audio Amplifier Board 50W+50W V5V4 Excellent quality: high quality material, safe and durable.Stable performance: with better noise performance, excellent output drive capability and relatively high small signal bandwidth, power supply voltage range.High fidelity: When used as an audio amplifier, the tone is warm and the fidelity is high.Wide range of uses: suitable for high quality and professional audio equipment, instruments, control circuits and telephone channel amplifiers.It has the characteristics of small size, high efficiency, and small heat.[Product Model]-502A[Product name] 2.0 channel 50Wx2 stereo Bluetooth audio power amplifier [Audio input] AUX+Bluetooth+U disk+USB sound card[Bluetooth version]5.1[Audio output] Left channel 50W+Right channel 50W[Adapter power supply] DC9~24V/ greater or equal to 3A (can not be connected to AC)[Adapted speaker] 10-50W, 4-8 ohm[Volume adjustment]Classic mechanical knob (with volume scale) stepless adjustment[Switch machine]Classic mechanical switch, one turn to switch the machine, no need to wait for a long time[Protection mechanism]Overheating, overcurrent, short circuit, anti-static protection[Features]Support Wuzhi Audio APP. Modify and change the bluetooth name, password setting prompt tone volume adjustment, on/off prompt tone, sleep aid song, sound effect selection + custom sound effect, U disk playlist.[Product size]78x50x18mmNote:It is recommended to use an 8 ohm speaker, power supply 9-24V DC, and do not overvoltage.If driving a 4 ohm speaker, the power supply cannot exceed 12V.Colour: blackMaterial: ABSPackage Contents:1 * Audio Amplifier Board Module1 * Screwdriver1 * Terminal

-502A Amplifier Board Bluetooth 5.1 Digital Audio Amplifier Board 50W+50W Y8K2 Excellent quality: high quality material, safe and durable.Stable performance: with better noise performance, excellent output drive capability and relatively high small signal bandwidth, power supply voltage range.High fidelity: When used as an audio amplifier, the tone is warm and the fidelity is high.Wide range of uses: suitable for high quality and professional audio equipment, instruments, control circuits and telephone channel amplifiers.It has the characteristics of small size, high efficiency, and small heat.[Product Model]-502A[Product name] 2.0 channel 50Wx2 stereo Bluetooth audio power amplifier [Audio input] AUX+Bluetooth+U disk+USB sound card[Bluetooth version]5.1[Audio output] Left channel 50W+Right channel 50W[Adapter power supply] DC9~24V/ greater or equal to 3A (can not be connected to AC)[Adapted speaker] 10-50W, 4-8 ohm[Volume adjustment]Classic mechanical knob (with volume scale) stepless adjustment[Switch machine]Classic mechanical switch, one turn to switch the machine, no need to wait for a long time[Protection mechanism]Overheating, overcurrent, short circuit, anti-static protection[Features]Support Wuzhi Audio APP. Modify and change the bluetooth name, password setting prompt tone volume adjustment, on/off prompt tone, sleep aid song, sound effect selection + custom sound effect, U disk playlist.[Product size]78x50x18mmNote:It is recommended to use an 8 ohm speaker, power supply 9-24V DC, and do not overvoltage.If driving a 4 ohm speaker, the power supply cannot exceed 12V.Colour: blackMaterial: ABSPackage Contents:1 * Audio Amplifier Board Module1 * Screwdriver1 * Terminal

-502A Bluetooth 5.1 DC9-24V Audio Digital Amplifier Board Module 2.1 H4A7 Model Name: -502AProduct Name: 50W x 2 Bluetooth audio amplifier moduleAudio Input: AUX+ Bluetooth+U disk + USB sound cardChannel: 2.0 (stereo)Power Range: DC9-24V/4A above ( recommended high voltage)Adapter Speaker: 10W-50W, 4-8 ohmProtection Mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protectionPS: In the audio input is enough, the supply voltage/current is enough, there will be enough output power! The higher the supply voltage, the greater the output power. The smaller the impedance of the speaker, the greater the output power! Please that the power of the adaptor is the actual working power of the amplifierType: Subwoofer Amplifier Boardcolor:BlackMaterial:plasticsize:78 x 50 x 18mmPackage Contents:1 x -502A Bluetooth Audio Digital Power Amplifier Board Module

Bose Panaray 502A Speakers Pair. Hi, Here is a pair of top class versatile speakers. Model: Bose Panaray 502A. In fully working order and in good clean condition with minor marks. Cash on collection preferred. Pls checkout my other items:) For more info, please message me on eBay.

Bose Panaray 502A Speakers Pair.

Bose Panaray 502A Speakers x6. These work brilliantly- just a little cosmetic damage. Come with wall brackets and Bose control unit. Will consider selling in pairs.

Bose Panaray 502A Speakers Pair,cosmetical damage.

-502A Amplifier Board Bluetooth 5.1 Digital Audio Amplifier Board 50W+50W C4N7 Excellent quality: high quality material, safe and durable.Stable performance: with better noise performance, excellent output drive capability and relatively high small signal bandwidth, power supply voltage range.High fidelity: When used as an audio amplifier, the tone is warm and the fidelity is high.Wide range of uses: suitable for high quality and professional audio equipment, instruments, control circuits and telephone channel amplifiers.It has the characteristics of small size, high efficiency, and small heat.[Product Model]-502A[Product name] 2.0 channel 50Wx2 stereo Bluetooth audio power amplifier [Audio input] AUX+Bluetooth+U disk+USB sound card[Bluetooth version]5.1[Audio output] Left channel 50W+Right channel 50W[Adapter power supply] DC9~24V/ greater or equal to 3A (can not be connected to AC)[Adapted speaker] 10-50W, 4-8 ohm[Volume adjustment]Classic mechanical knob (with volume scale) stepless adjustment[Switch machine]Classic mechanical switch, one turn to switch the machine, no need to wait for a long time[Protection mechanism]Overheating, overcurrent, short circuit, anti-static protection[Features]Support Wuzhi Audio APP. Modify and change the bluetooth name, password setting prompt tone volume adjustment, on/off prompt tone, sleep aid song, sound effect selection + custom sound effect, U disk playlist.[Product size]78x50x18mmNote:It is recommended to use an 8 ohm speaker, power supply 9-24V DC, and do not overvoltage.If driving a 4 ohm speaker, the power supply cannot exceed 12V.Colour: blackMaterial: ABSPackage Contents:1 * Audio Amplifier Board Module1 * Screwdriver1 * Terminal

-502A Amplifier Board Bluetooth 5.1 Digital Audio Amplifier Board 50W+50W N6L6 Excellent quality: high quality material, safe and durable.Stable performance: with better noise performance, excellent output drive capability and relatively high small signal bandwidth, power supply voltage range.High fidelity: When used as an audio amplifier, the tone is warm and the fidelity is high.Wide range of uses: suitable for high quality and professional audio equipment, instruments, control circuits and telephone channel amplifiers.It has the characteristics of small size, high efficiency, and small heat.[Product Model]-502A[Product name] 2.0 channel 50Wx2 stereo Bluetooth audio power amplifier [Audio input] AUX+Bluetooth+U disk+USB sound card[Bluetooth version]5.1[Audio output] Left channel 50W+Right channel 50W[Adapter power supply] DC9~24V/ greater or equal to 3A (can not be connected to AC)[Adapted speaker] 10-50W, 4-8 ohm[Volume adjustment]Classic mechanical knob (with volume scale) stepless adjustment[Switch machine]Classic mechanical switch, one turn to switch the machine, no need to wait for a long time[Protection mechanism]Overheating, overcurrent, short circuit, anti-static protection[Features]Support Wuzhi Audio APP. Modify and change the bluetooth name, password setting prompt tone volume adjustment, on/off prompt tone, sleep aid song, sound effect selection + custom sound effect, U disk playlist.[Product size]78x50x18mmNote:It is recommended to use an 8 ohm speaker, power supply 9-24V DC, and do not overvoltage.If driving a 4 ohm speaker, the power supply cannot exceed 12V.Colour: blackMaterial: ABSPackage Contents:1 * Audio Amplifier Board Module1 * Screwdriver1 * Terminal

-502A VerstäRkerplatine Bluetooth 5.1 Digital Audio VerstäRkerplatine 50 D1A8 Hervorragende Qualität: Hochwertiges Material, sicher und langlebig. Leistung: mit besserem Rauschverhalten, hervorragender Ausgangstreiberfähigkeit und relativ hoher Kleinsignalbandbreite, großem Versorgungsspannungsbereich.High Fidelity: Bei Verwendung als Audioverstärker ist der Ton warm und die Wiedergabetreue .Breites Einsatzspektrum: geeignet für hochwertige und professionelle Audiogeräte, Instrumente, Steuerschaltungen und Telefonkanalverstärker.Es hat die Eigenschaften kleiner Größe, hoher Effizienz, hoher Leistung und geringer Wärmeentwicklung.[Produktmodell]-502A.[Produktname] 2.0-Kanal-50Wx2-Stereo-Bluetooth-Audio-Leistungsverstärker [Audioeingang] AUX+Bluetooth+U-Disk+USB-Soundkarte.[Bluetooth-Version]5.1.[Audioausgang] Linker Kanal 50 W + Rechter Kanal 50 W[Netzteil des Adapters] DC9~24 V/ größer oder gleich 3 A (kann nicht angeschlossen werden zu AC)[Angepasster Lautsprecher] 10-50W, 4-8 Ohm[Lautstärkeeinstellung]Klassischer mechanischer Knopf (mit Lautstärkeskala) stufenlose Einstellung[Schaltermaschine]Klassischer mechanischer Schalter, eins drehen, um die einzuschalten, keine Notwendigkeit, lange zu warten[Schutzmechanismus]Überhitzung, Überstrom, Kurzschluss, Antistatikschutz[Eigenschaften]Unterstützt Wuzhi Audio APP. Ändern und ändern Sie den Bluetooth-Namen, die Lautstärkeeinstellung des Aufforderungstons zur Kennworteinstellung, den Ein-/Aus-Aufforderungston, den Schlafhilfe-Song, die Soundeffektauswahl + benutzerdefinierter Soundeffekt, die U-Disk-Wiedergabeliste.[Produktgröße] 78 x 50 x 18 mmHinweis:Es wird empfohlen, einen 8-Ohm-Lautsprecher zu verwenden, die Stromversorgung 9-24 V DC und keine Überspannung zu erzeugen.Wenn ein 4-Ohm-Lautsprecher betrieben wird, darf die Stromversorgung 12 V nicht überschreiten.Farbe: Schwarz

ONE   NOS RCA Black Metal 502A Silver Print Vacuum Tube   No Box     Guaranteed THREE AVAILABLE ALL NEW Listing and template services provided by inkFrog

  OUR STORE ABOUT US contact us FEEDBACK ADD TO FAVORITE SELLER Have a Question? Have questions about this item? Please contact us through the eBay messaging system. Store Categories --> Audio / Video Equipment Cables Cell Phones & Accessories Printers & Accessories Projectors Tablets & Accessories Telecom / Telephones Other Why Buy From Us 1) Excellent Feedback History 2) Prompt Customer Service 3) Quality Pre-Owned Equipment 4) Fast Shipping Pair - Bose Panaray 502A Controlled Array Speakers + Omnimount Mounting Brackets Details:   Model Number: {{itemspecific_mpn}}   Manufacturer {{itemspecific_manufacturer}}   Condition Detail Used. Professionally pulled from a working environment and tested to be fully functional. May show signs of previous ownership including light surface scratches, scuff marks and wear along the edges from normal use and storage. For a complete understanding of this items overall cosmetic condition, please refer to all photos included in this listing.   Sku 121331 Product Description Included Items & Quantities: (2) Bose Panaray 502A Controlled Array Speakers + Omnimount Mounting Brackets (2) Omnimount mounting brackets Feedback is very important to us If there is a problem with your eBay transaction please contact us before leaving neutral, negative or Item Not as Described feedback and we will do whatever it may take to make sure you are satisfied with your purchase. Just give us a chance to assist you so we can continue to offer outstanding products, prices and customer service! You can e-mail us directly through the eBay email system.        

-502A Amplifier Board Bluetooth 5.1 Digital Audio Amplifier Board 50W+50W Q5S4 Excellent quality: high quality material, safe and durable.Stable performance: with better noise performance, excellent output drive capability and relatively high small signal bandwidth, power supply voltage range.High fidelity: When used as an audio amplifier, the tone is warm and the fidelity is high.Wide range of uses: suitable for high quality and professional audio equipment, instruments, control circuits and telephone channel amplifiers.It has the characteristics of small size, high efficiency, and small heat.[Product Model]-502A[Product name] 2.0 channel 50Wx2 stereo Bluetooth audio power amplifier [Audio input] AUX+Bluetooth+U disk+USB sound card[Bluetooth version]5.1[Audio output] Left channel 50W+Right channel 50W[Adapter power supply] DC9~24V/ greater or equal to 3A (can not be connected to AC)[Adapted speaker] 10-50W, 4-8 ohm[Volume adjustment]Classic mechanical knob (with volume scale) stepless adjustment[Switch machine]Classic mechanical switch, one turn to switch the machine, no need to wait for a long time[Protection mechanism]Overheating, overcurrent, short circuit, anti-static protection[Features]Support Wuzhi Audio APP. Modify and change the bluetooth name, password setting prompt tone volume adjustment, on/off prompt tone, sleep aid song, sound effect selection + custom sound effect, U disk playlist.[Product size]78x50x18mmNote:It is recommended to use an 8 ohm speaker, power supply 9-24V DC, and do not overvoltage.If driving a 4 ohm speaker, the power supply cannot exceed 12V.Colour: blackMaterial: ABSPackage Contents:1 * Audio Amplifier Board Module1 * Screwdriver1 * Terminal

-502A Bluetooth 5.1 DC9-24V Audio Digital Amplifier Board Module 2.1 D8T1 Model Name: -502AProduct Name: 50W x 2 Bluetooth audio amplifier moduleAudio Input: AUX+ Bluetooth+U disk + USB sound cardChannel: 2.0 (stereo)Power Range: DC9-24V/4A above ( recommended high voltage)Adapter Speaker: 10W-50W, 4-8 ohmProtection Mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protectionPS: In the audio input is enough, the supply voltage/current is enough, there will be enough output power! The higher the supply voltage, the greater the output power. The smaller the impedance of the speaker, the greater the output power! Please that the power of the adaptor is the actual working power of the amplifierType: Subwoofer Amplifier Boardcolor:BlackMaterial:plasticsize:78 x 50 x 18mmPackage Contents:1 x -502A Bluetooth Audio Digital Power Amplifier Board Module

Welcome to Vacuum Tube Depot llc! We have been one of the leading online suppliers of vacuum tubes for many years. Recently, we acquired a very large collection of tubes that we are excited to offer. We have tested and sold thousands of these tubes, and have many, many more to sell. After testing literally thousands of tubes from this collection, we have found only a small handful that did not test well. The vast majority tested strong. Buy with confidence, and if you are not happy with your purchase, you can send it back on your dime for a refund. We will combine shipping on multiple purchases within 5 days of the first auction ending. Payment must be made within 5 days or your purchase will be canceled and re-listed. We do not have the space to hold onto auctions for you for any longer than this. If you would like combined shipping, please wait to make payment until after we have sent your invoice. We send invoices each day after all auctions have ended for that day. Combined shipping can only be combined with this shop, not other shops with similar names. Thank you for shopping with Vacuum Tube Depot llc! We have tons of these flats loaded with tubes. We opened maybe tons boxes to make sure tubes matched the boxes, out of all the boxes we opened. Most matched, but several had the correct number but different brand from box. Sold as is

-502A Amplifier Board Bluetooth 5.1 Digital Audio Amplifier Board 50W+50WJ6 Excellent quality: high quality material, safe and durable.Stable performance: with better noise performance, excellent output drive capability and relatively high small signal bandwidth, power supply voltage range.High fidelity: When used as an audio amplifier, the tone is warm and the fidelity is high.Wide range of uses: suitable for high quality and professional audio equipment, instruments, control circuits and telephone channel amplifiers.It has the characteristics of small size, high efficiency, and small heat.[Product Model]-502A[Product name] 2.0 channel 50Wx2 stereo Bluetooth audio power amplifier [Audio input] AUX+Bluetooth+U disk+USB sound card[Bluetooth version]5.1[Audio output] Left channel 50W+Right channel 50W[Adapter power supply] DC9~24V/ greater or equal to 3A (can not be connected to AC)[Adapted speaker] 10-50W, 4-8 ohm[Volume adjustment]Classic mechanical knob (with volume scale) stepless adjustment[Switch machine]Classic mechanical switch, one turn to switch the machine, no need to wait for a long time[Protection mechanism]Overheating, overcurrent, short circuit, anti-static protection[Features]Support Wuzhi Audio APP. Modify and change the bluetooth name, password setting prompt tone volume adjustment, on/off prompt tone, sleep aid song, sound effect selection + custom sound effect, U disk playlist.[Product size]78x50x18mmNote:It is recommended to use an 8 ohm speaker, power supply 9-24V DC, and do not overvoltage.If driving a 4 ohm speaker, the power supply cannot exceed 12V.Colour: blackMaterial: ABSPackage Contents:1 * Audio Amplifier Board Module1 * Screwdriver1 * Terminal