The price has been drastically reduced. 2024/6/27 sales price 1,380,000 yen ※Roller-type legs are being ordered. A B&W802 diamond with a majestic piano black. It is a high-end machine that boasts a clear and transparent high range unique to diamond tweeters, and a medium to low range that is ideal for home environments, achieving both tightness and a sense of volume. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.6.24 Manufacturer maintained (tweeter replaced)
Accessories: grill, jumper, spike, instruction manual, roller legs (on order)
Main specifications: 3-way bass reflex type 25mm diamond dome tweeter 150mm warven kevlar 200mm loha selcone woofer playback frequency band 27Hz to 33kHz sensitivity 90dB impedance 8Ω crossover frequency 350Hz 4kHz size W368 x H1,135 x D563 mm weight 72 kg
The price has been drastically reduced. 2024/6/19 sales price 12,000 yen. Made of ultra-short horn plastic with 2 screw holes It is said that the previous owner used it on the Altec 802. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi)
Accessories: none
Main specifications: screw pitch 75mm, throat diameter 96mm, W160 x H160 x D110 mm (actual measurement)
The price has been reduced! 2024/5/8 sales price 12,000 yen ※The exterior is in poor condition, so it's cheap. 1 bottle only Altec green horns were also used in the early A7. While it has wide diffusion characteristics, it is an attractive horn because it is easy to listen to where you can feel the core. The exterior is dull, scratched, and peeling paint (Yonejima Satoshi)
Accessories: No accessories
Main specifications: 800Hz crossover frequency compatible driver 802-8D, 806-8A, 807-8A W470 × H220 × D340 mm 4.1 kg
※1 piece only. Compatible with SX series, FM series, TX series, and ELIMINATOR, in addition to SX300 diaphragms. The appearance is good with little feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.6.20 Continuity confirmed
Accessories: instruction manual (English), original box
Main specifications: body width 75mm diameter 52mm screw pitch 35mm
Maintained! A pure Class A premain amplifier from the early days of the musical Fidelity. The top plate heats up due to the high calorific value, but it is a famous machine that still boasts high popularity for its elastic, bouncy mid-low range, and smooth, thick mid-high range sounds. The beauty of the simple design is also attractive. There are small scratches and scratch marks on the exterior. Serial 11418 (Tamura Eiji)
Maintenance Information: 2024.7.3 Maintained (input selector switch contact cleaning. The TAPR and MM/MC changeover push switches were replaced due to poor contact. 17 capacitors were replaced due to differences in electrolyte condenser fluid leak levels. (Each input/output operation check is OK)
Accessories: instruction manual
Main specifications: pure A grade 20W+20W (8Ω) W408 x H60 x D249 mm 5.5 kg
Compatible with micro SME short tonearm bases 3009 and 3010. There are dirt scratches on the exterior (Tamura Eiji)
Accessories: none
Main specifications: Compatible players: BL-101, BL-91, BL-111, etc.
The price has been drastically reduced! 2024/5/9 sales price 39,800 yen D/A converter with a built-in “ES9038PRO.” This model has a compact design, is compatible with MQA, high-resolution, and DSD sound sources, and has excellent cost performance. Desktops etc. are the worst. There are no noticeable scratches on the exterior (Tamura Eiji)
Maintenance information: 2024.5.9 operation confirmed
Accessories: English instruction manual, remote control, AC adapter
Main Specifications: Input: USB/OPTICAL/COAXIAL/BLUETOOTH USB: 44.1 to 768 kHz/DSD64 to 512 OPTICAL/COAXIAL: 32 to 192 khz W100 x H62 x D192 mm Weight 0.58 kg
The A2500 is a tube type power amplifier kit that has been replaced with speaker terminals that are easy to use even for beginners. 6AQ8 for the first stage and 12AU7 for the phase reversal stage both use triodes. Since triodes are used across all stages, the sound is taut and bright, with excellent nude characteristics. The exterior has dullness over time, rust, and small scratches. Serial 560561 (Miura Kimiya)
Maintenance information: 2018.4.28 Maintained (printed circuit board resistor replaced. (Adjustment characteristics check OK) 2014.11.21 maintenance completed (input VR, vacuum tube socket, coupling capacitor, SP terminal, BIAS DC BAL, semi-VR, each deterioration exchange, adjustment, characteristic check OK)
Accessories: instruction manual
Main specifications: 6 RA8 push-pull 6 RA8 x 4/12 AU7 x 2/6AQ8 10W+10W W410 x H145 (with hood) x D190 mm 9.6 kg
Designed with a complete dual mono configuration from the power transformer. The pre and power are also independently configured. The high range is sparkling, and the mid and low frequencies are thick, making it a profound sound. The exterior has dullness, threads, and scratches on the front (Ryo Mizusaki)
Maintenance information: 2024.5.31 Maintained (The battery was replaced and the board pattern was corrected due to liquid leakage in the function memory battery. (Since the VR shaft is long, accuracy cannot be achieved, and stress is applied to the VR, so the extension shaft flexible joint Assy was replaced)
Accessories: remote control, instruction manual, power cord
Main specifications: effective output 85W+85W (8Ω) 170W+170W (4Ω) input: unbalanced (RCA) x 6 systems (1 system is PHONO: MM/MC compatible, 1 is TAPE) outer dimensions W440 mm x H95 mm x D400 mm weight 13 kg
Screwdriver Transpair sale 1st order: 5 kΩ 2nd order: 5 kΩ CT/1.25 ksplit DC30mA 50 to 15 kHz output level 30dBm W76 × H83 × D44mm 0.7 kg (actual measurement, including protrusions) One side with original box seems to be an unused item due to the state of the terminal! (KOJIMA Yosuke)
Accessories: original box
The A3500 vacuum tube power amplifier has been refreshed by thorough maintenance down to the smallest details, such as volume disassembly and polishing. The warm, fresh tone, filled with the appeal of a vacuum tube type, is still appealing enough today. You can enjoy music with a rich, thick tone that contrasts with the clicking tones of recent vacuum tube amplifiers. As for the exterior, paint deterioration and peeling can be seen on the transformer on one side, and there is a feeling of use such as dullness, small scratches, etc., and there is a dent in the hood. ※3-pole tube connection specification. 20W+20W (actual measurement) is output as specified by the manufacturer (Takasaki Atsushi)
Maintenance information: 2023.2.3 maintained (main tube (6CA7) replacement vacuum tube socket, block capacitor, electrolytic capacitor, oil capacitor, SP and RCA terminals, complete disassembly of semi-fixed VR replacement power input gain volume, contact polishing, anti-oxidation/sulfation grease coating load test (8Ω load 1kHz 20W+20W) input/output waveform confirmation sound output check performed)
Accessories: copy of the manual
Main specifications: 20W+20W (8Ω) vacuum tube 6CA7×4/6AQ8×3 W465×H168×D206mm 16kg
※The remote control is missing, and there are many scratches on the front panel, etc., so it is inexpensive. Uses a “power MOS FET,” which has a reputation for sound quality and reliability. Sound quality that claims to be an extrusion not unique to the company with a high degree of perfection. The driving power is sufficient even for standalone stereo operation, but it can be upgraded to a majestic sound with a bridge connection. In addition to the exterior, the black ring on the SP terminal is partially missing, and a feeling of use can be seen such as dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2024.7.5 operation confirmed
Accessories: power cable
Main specifications: stereo power amplifier pure A grade operation rated output 60 W+60 W (8 Ω), 480 w/ch 1 Ω load in stereo specification ~ 60 w/ch 8 Ω load input RCA1, XLR1 speaker output 2 system damping factor 800 impedance 2 to 16 Ω (when stereo specification) S/N ratio 127 dB (GAIN switch -12 dB) W465 × H238 × D515 mm 44.3 kg
Maintained. This is a heavyweight premain amplifier manufactured by PIONEER. Since they are only from the bubble period, large quantities of material were used, and they are highly cost-effective amplifiers. Even the smallest sounds are clearly reproduced, and the sound quality, which is both thick, shows how well crafted it was unique to that time. Overall there are small scratches, dullness, etc. (Oikawa Tetsuji)
Maintenance information: 2024.5.19 maintained (output relay replacement, master volume exchange, muting SW exchange, direct switch, etc., switch disassembly polishing grease application (input selector, recoup, loudness, tape 3, speaker switching SW), each volume, switch cleaning, interior and exterior inspection and cleaning, operation confirmation. * (Additional note) Since the master volume is a replacement, it can be adjusted in detail when the volume is low to medium volume, but when the volume is raised and auditioned, the VR seems to be raised (12:00). (*When listening to a phono, the sound will not come out unless the EQ switch is turned on)
Accessories: instruction manual
Main specifications: output 100W+100W (8Ω) 120W+120W (6Ω) 150W+150W (4Ω) power consumption 270W dimensions W420 x H162 x D435 mm weight 19.6 kg
Comes with original box! DP-1300M heavy headshell counterweights, set of 2 large and small A must-have item for those using heavyweight cartridges such as SPU and FR. It can also be attached to the DP-500M. It is recommended for those who use a variety of cartridges. There are some scratches on the exterior (Fujisawa Yukishi)
Accessories: original box
Main specifications: Compatible cartridge weight/for 20 to 28 g (small) /26 to 37 g (large)
The price has been reduced. 2024/6/30 sales price 8,000 yen. Speaker cable 2.0m pair ends untreated. It is a cross insulated structure with an air layer called CIS as a damper, and the sound quality is flat and natural without any habit. I think you can use it regardless of genre. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.6.27 continuity confirmed
Accessories: none
The disposal price has been reduced! (Member discounts are not applicable) 2023/7/31 sales price 15,000 yen*Currently sold. It is a 2.1 channel speaker system that perfectly matches Bose's unique compact, high-performance speaker technology with bass reproduction technology. You can easily enjoy the simple 2.1 channel. The exterior has cracks in the woofer cabinet, dullness, and small scratches throughout. Serial 990701 (Yonejima Satoshi)
Maintenance information: 2023.7.31 operation confirmed
Accessories: No accessories
Main specifications: rated input 100W impedance 6Ω satellite speaker 6.0cm driver x 2 anti-magnetic type W78 x H157 x D104 mm 1.1 kg subwoofer 13 cm drivers x 2 W485 x H358 x D192 mm 9.1 kg
Maintained! NAKAMICHIN's pre-main amplifier is in stock for the first time in a while. Simple design like an English amp. The thick, energetic sound typical of Nakamichi is attractive. The exterior has dents, dullness, and small scratches on the top plate. Serial 07436 (Yonejima Satoshi)
Maintenance information: 2024.5.31 Maintained (power switch replaced. Output relay replacement. (Switch and volume contact correction)
Accessories: No accessories
Main specifications: 80W+80W (8Ω) equipped with Phonomm/MC W430 x H125 x D360 mm weight approx. 15.0 kg
※Shipping service. Special Feature = Listen to the Latest MC Cartridge/Audio Famous Machine Award 2008 Decided/World Speaker Brand Large Aperture Temptation 1/Infatuation with Open Decks/TAD “TAD Reference One” that sounds famous devices/30th anniversary Learn about Dynaudio's great challenge to high definition speakers/Check out Zonotone Cable's ability in analog playback /Type Specific Tube Bulb Amplifier Research High-End Amplifier/Published on H20.1.20/ Posted models: Criterion Analogue Playback System/gyrodec-UNV1/EA-1 2 P-3G/AT33MONO/MC Windfeld/A-S2000/Illusion A7/SC-11S1 SM-11S1/C-600F M-600A/AT33PTG/YC-03S/Model 7000/Celebration MK2/ZYX-4D/ Stradivari/Hyper Eminent/TRV-M88pp/reference-two reference-one/SD-2 KR/The photograph is a sample, so the actual product may be broken and there may be writing etc.
Internally and externally maintained! This is the second generation of Tannoy's famous machine ARDEN. The warm and soft tone is attractive. It plays all kinds of music lusciously and gently. In particular, it works great with vacuum tube amplifiers, and the sense of orchestra scale and smooth playback of stringed instruments are satisfying enough to listen to. The exterior has been beautifully finished due to exterior maintenance. Serial 011093 016017 (Tomonori Asaine)
Maintenance information: 2024.4.18 Maintained (exterior repair/polishing/oil finish front and rear baffle/hakama repair/paint saran frame reinforcement painting/net replacement, batch polishing unit maintenance (high frequency magnetic circuit/in-gap cleaning/center adjustment diaphragm gap indirect attachment) ATT cleaning unit detachable)
Accessories: saran net
Main specifications: 2 way, 1 speaker, bass reflex system, floor type specification unit 3828, crossover frequency, 1 kHz, output sound pressure level, 91.5 dB, 8 ohms, dimensions W660 x H990 x D370 mm, weight 43 kg/book
Both the interior and exterior have been fully restored and refreshed! This is the second generation of Tannoy's famous machine ARDEN. The warm and soft tone is attractive. It plays all kinds of music lusciously and gently. In particular, it works great with vacuum tube amplifiers, and the sense of orchestra scale and smooth playback of stringed instruments are satisfying enough to listen to. It is beautiful due to exterior repairs (Sasaki Shota)
Maintenance information: 2024.5.10 Maintained (exterior repair/polishing/oil finish. Front and rear baffles/hakama repair/painting. Saran net replacement/frame repair/reinforcement. Unit maintenance: low range/edge exchange, magnetic circuit gap cleaning/center adjustment, high pass/magnetic circuit rust removal/gap cleaning/center adjustment. Network maintenance: frequency characteristic check, ATT cleaning, faston terminal replacement, terminal cleaning)
Accessories: none
Main specifications: 2 way, 1 speaker, bass reflex system, floor type specification unit 3828, crossover frequency, 1 kHz, output sound pressure level, 91.5 dB, 8 ohms, dimensions W660 x H990 x D370 mm, weight 43 kg/book
Goodman ARU is in stock. It comes with a rare original nameplate. If you use a designated box such as an Axiom80 and don't have ARU, please take this opportunity to try it out. There is a slight crack (Kobayashi Hitoshi)
Accessories: none
Main specifications: W374 x H248 x D35 mm
Audiocraft lightweight shell with 2 lock pins. The highly rigid and solid sound is attractive (Sasaki Shota)
Accessories: none
Main specifications: aluminum stamping 8g
It is an aluminum press shell that uses Audiocraft's Perfect Lock pin. The exterior has a feeling of use such as dullness (Daiki Goto)
Maintenance information: 2024.7.7 continuity confirmed
Accessories: none
Main specifications: dead weight 12g
Luxman High Definition Speaker Selector It's a long-running model. The discrete design where each ground circuit is switched, and 6N wires are used for internal wiring, etc., and the special configuration typical of the company shines. The speaker terminals are also compatible with banana and Y lug terminals. Serial 2820-1G2 (Tamura Eiji)
Maintenance information: 2024.7.3 continuity check OK
Accessories: none
Main specifications: 1 input system, 3 SP output systems, W370 x H71 x D164 mm, 3 kg
1 unit only. Mono power amplifier equipped with KT88. This amplifier is recommended for those who want to relax and enjoy music, with a powerful, delicate, and clear sound that plays well even in the low frequencies. The exterior has bumps, paint peeling, and scratches. Serial 0504082R (Fujisawa Yukishi)
Maintenance information: 2024.7.6 operation confirmed
Accessories: bonnet
Main specifications: 50W (UL) 25W (TRIODE) 4.8Ω W180 × H190 × D470 mm weight 14.5 kg (actual measurement)
*Currently sold. Sealed active subwoofer equipped with a 50mm unit. Equipped with a 200W ICEpower amplifier. It has a mushroom structure that increases unit strength and achieves both sharpness and volume, and a sturdy paper kevlar is used for the cone screwdriver. As for the exterior, there are scratches on the back. Serial 2003-0009982 (Yonejima Satoshi)
Maintenance information: 2024.7.4 operation confirmed
Accessories: instruction manual, power cord, connection cord
Main specifications: Unit 250mm long throw amplifier output 200W playback frequency band 20Hz to 25/140Hz (-6dB, when EQ A is selected) playback frequency response 27Hz to 40/140Hz (±3dB, when EQ A is selected) rated consumption output 40W (0.5W in standby) W310 x H310 x D375 mm 12.50 kg
Audio-Technica mini jack to standard jack conversion plug The terminal part is gold-plated, and reliable conduction is achieved through reliable crimping through terminal shape research (Murakoshi Yoichi)
Accessories: none
RCA cable 5.0 m pair is a basic and affordable RCA cable with a titanium-containing sheath boasting low loss and high Sn and the largest cross-sectional area in its class (Tamura Eiji)
Maintenance information: 2024.7.4 continuity confirmed
Accessories: No accessories
RCA cable uses 1.5 m pair of out-of-print conductors and single crystalline high-purity oxygen-free copper PCOCCC with theoretically zero crystal boundaries for all core wires, braided wires, and plug pins. The shield is rolled up on the plug attachment part, it is dull, and there is a feeling of use (Kanai Hidetsugu)
Maintenance information: 2024.5.3 continuity confirmed
This disc stabilizer uses a “reversible structure” that allows both the front and back sides to be used. You can enjoy 2 types of sound quality depending on your preferences. High sound quality design with brass (special gloss finish) and damping rubber “Honeynight”. The exterior is dull, slightly scratched, etc. (Asaine Tomoho)
Accessories: none
Main specifications: H44 x W123 x D123 mm approx. 750 g
Set of 4 Audio-Technica's banana plug screw tightening method. It is a rear connection type that allows easy speaker settings, and is compatible with banana jacks with a diameter of 4 to 4.5 mm (Tamura Eiji)
Accessories: none
Set of 4 Audio-Technica's banana plug screw tightening method. It is a rear connection type that allows easy speaker settings, and is compatible with banana jacks with a diameter of 4 to 4.5 mm (Tamura Eiji)
Accessories: none
Set of 4 Audio-Technica's banana plug screw tightening method. It is a rear connection type that allows easy speaker settings, and is compatible with banana jacks with a diameter of 4 to 4.5 mm (Tamura Eiji)
Accessories: none
Set of 4 Audio-Technica's banana plug screw tightening method. It is a rear connection type that allows easy speaker settings, and is compatible with banana jacks with a diameter of 4 to 4.5 mm (Tamura Eiji)
Accessories: none
Set of 4 banana plugs High sound quality solderless (no solder). This is a banana plug with a screw fastening system. It is an orthodox and easy to use plug (Tamura Eiji)
Accessories: none
Set of 4 banana plugs High sound quality solderless (no solder). This is a banana plug with a screw fastening system. It is an orthodox and easy to use plug. The appearance is good with little feeling of use (Kobayashi Hitoshi)
Accessories: original box
Set of 4 banana plugs High sound quality solderless (no solder). This is a banana plug with a screw fastening system. It is an orthodox and easy to use plug (Tamura Eiji)
Accessories: none
Set of 4 banana plugs High sound quality solderless (no solder). This is a banana plug with a screw fastening system. It is an orthodox and easy to use plug (Tamura Eiji)
Accessories: none
Set of 4 banana plugs High sound quality solderless (no solder). This is a banana plug with a screw fastening system. It is an orthodox and easy to use plug (Tamura Eiji)
Accessories: none
Set of 4 Solderless, brass+rhodium plated premium banana plug A double screw system is used to securely lock the cable. *A wrench is required to fix the cable. There is a feeling of use (Murakoshi Yoichi)
Accessories: none
Main specifications: Compatible with cable diameters of 1.5 to 4.0 mm
Set of 4 Solderless, brass+rhodium plated premium banana plug A double screw system is used to securely lock the cable. *A wrench is required to fix the cable. There is a light bend at the tip of one (Murakoshi Yoichi)
Accessories: none
Main specifications: Compatible with cable diameters of 1.5 to 4.0 mm
The disposal price has been reduced! Member discounts are not applicable. 2024/6/17 sales price 49,800 yen tall tower audio rack. Made of powder-coated, scratch-resistant metal and tempered safety glass made in Italy. It has rounded glass front shelves for a custom made look. It includes a management system to hide power cords and interconnect cables. The exterior has a feeling of use such as dullness and small scratches. *Shipping costs will be estimated separately (Asaine Tomoho)
Accessories: none
Main specifications: shelf glass plate thickness 6 mm load capacity 23 kg size 635 x 610 x 1,550 mm weight 46 kg
Audio-Technica headshell A lightweight aluminum headshell that is both easy to use and has high sound quality. There is a slight screw scratch. (FUJISAWA KOSHI)
Maintenance information: 2024.7.2 continuity confirmed
Accessories: No accessories
Main specifications: aluminum dead weight 10g
*Currently sold. microphone amplifier It is possible to pick up and amplify sound with an AV device without a microphone terminal. There are no noticeable scratches on the exterior (Sasaki Shota)
Maintenance Information: 2023.8.11 Operation confirmed
Accessories: original box, power adapter, manual
Main specifications: W70 x H30 x D92 mm 160 g
The price has been reduced! 2024/6/27 sales price 12,800 yen Easy to use 2P type 6-port tap. Suitable for PSE standard audio systems up to mid-level. The exterior is dull and has small scratches. Serial 814001 (Tamura Eiji)
Maintenance information: 2024.6.27 continuity confirmed
Accessories: none
Main specifications: Power cable section 1.8 m
*Currently sold. The final model of the DENON step-up transformer using all LC-OFC lines. Small and affordable, yet clear sound with high S/N. It is a versatile type that is compatible with various cartridges from 3 to 40 ohms. The exterior has a feeling of use such as dullness and small scratches (Hiroki Aso)
Maintenance information: 2024.6.30 Operation confirmed
Accessories: none
Main specifications: All LC-OFC lines used, LR independent permalloy double shield compatible cartridge impedance, 3 to 40 ohms, boost ratio 1:10, connection cord, 40 mm, frequency characteristics, 20 Hz to 50 kHz, W50 x H37 x D110 mm, 260 g
*Currently sold. DENON's MC type cartridge boost transformer. Since it is equipped with a pass circuit, it is convenient when listening by exchanging 2 types of cartridges (MM type, MC type) with a single arm. Also, since it uses a transformer designed for the DL-103 and DL-103S, it fully demonstrates the capabilities of the models described above. You can see the exterior, dullness, rust, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.5.5 operation confirmed
Accessories: none
Main specifications: primary impedance 40 ohms secondary impedance 4 kΩ boost ratio 1:10 frequency band 20 to 40 kHz dimensions W51 x H53 x D181 mm weight 0.65 kg
Maintained! Pre-main amplifier equipped with a linear-step MC transformer. Supported by SANSUI's traditional strong power supply, it has stable driving power, and the sound is dense in the mid-range. It is compatible with JBL 43 series monitors, and is characterized by strength not found in late SANSUI amplifiers. The exterior is peeling on the side wood veneer corners, and there is a slight feeling of use such as small scratches. Serial 821090015 (Murakoshi Yoichi)
Maintenance information: 2021.3.6 Maintained (main amplifier transistor and output relay replacement, headphone relay replacement, input selector, recalout switch disassembly and polishing, power supply floating resistor replacement, solder repair, each volume, switch cleaning, interior and exterior cleaning inspection, operation confirmation. ※There is a slight roar from the power transformer. There is no effect during the audition, but when there is no sound, you can tell by attaching your ear to the main unit. (The same applies to other models of the same type.)
Accessories: instruction manual (copy)
Main specifications: effective output 120W+120W W463 x H160 x D444 mm 17.7 kg
The disposal price has been reduced. Member discounts are not applicable. 2024/6/26 sales price 2,980,000 yen Full maintenance has been completed, from each unit to the exterior. Super rare for Shinkosha enclosures approved by Tannoy in the UK! This model is equipped with MONITOR RED15 with an amber-colored cap. The system that combines the deep and majestic sense of scale unique to Autograph expressed by the low range backroad horn and the mid to low range front short horn with the genre-free skills of the amber-colored RED is a world view that is completely different from the GOLD mount. Please take this opportunity to get your hands on it and enjoy every corner (Kobayashi Hitoshi)
Maintenance information: 2024.6.25 maintained (exterior maintenance: top plate polishing/clear finish, other exterior cleaning/touch repair, unit maintenance: magnetic circuit gap cleaning/center adjustment for both low and high frequencies, network maintenance: frequency characteristic check, 4-pin terminal cleaning, unit detachment/terminal replacement)
Accessories: saran net
Main specifications: 2-way, 1 speaker, all-horn system, corner type usage unit, 15 inch (38 cm) MONITOR RED impedance 16 Ω playback frequency band 23 Hz to 20 kHz crossover frequency 1 kHz maximum input 50 W W1070 x H1530 x D660 mm 78 kg